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7/24/2019 Eclipse Java IDE asd

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1. %e Eclipse IDE...............................................................................................................................1

;. %e Eclipse p*+=ec)..........................................................................................................................1

3. Eclipse F+(a)i+(..........................................................................................................................1

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5. Java *e@i*e2e()s + Eclipse...........................................................................................................;

. D+7(l+a Eclipse............................................................................................................................;

. Eclipse I(s)alla)i+(..........................................................................................................................3

C. Ge))i(/ s)a*)e................................................................................................................................3

C.1. S)a*)i(/ Eclipse.........................................................................................................................3

C.;. Appea*a(ce...............................................................................................................................5

. I2p+*)a() Eclipse )e*2i(+l+/:........................................................................................................5

.1. pl+*e*................................................................................10

11. Eclipse Java pe*spec)ive.............................................................................................................11

11.1. %++la*..................................................................................................................................11

11.;. "sel vie7s..........................................................................................................................11

11.3. !ac6a/e E>pl+*e* vie7..........................................................................................................11

11.. $)li(e vie7..........................................................................................................................1;

11.5. !*+le2s vie7.......................................................................................................................1;

11.. Java+c vie7.........................................................................................................................1

11.. Java ei)+*............................................................................................................................1

1;. 9*ea)e :+* ?*s) Java p*+/*a2....................................................................................................15

1;.1. %a*/e) + )is e>e*cise...........................................................................................................15

1;.;. 9*ea)e p*+=ec).......................................................................................................................15

1;.3. 9*ea)e pac6a/e.....................................................................................................................1

1;.. 9*ea)e Java class..................................................................................................................1C

1;.5. R( :+* p*+=ec) i( Eclipse...................................................................................................1

13. R( Java p*+/*a2 +)sie Eclipse..............................................................................................;0


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13.;. R( :+* p*+/*a2 +)sie Eclipse........................................................................................;;

1. E>p+*)i(/ a( i2p+*)i(/ p*+=ec)s...............................................................................................;3

1.1. E>p+*)i(/ p*+=ec)s.................................................................................................................;3

1.;. I2p+*)i(/ p*+=ec)s................................................................................................................;5

15. Navi/a)i(/ )e Java s+*ce c+e................................................................................................;

15.1. !ac6a/e E>pl+*e*..................................................................................................................;

15.;. Fil)e* *es+*ces i( )e !ac6a/e E>pl+*e*...............................................................................;

15.3. 9l+si(/ a( +pe(i(/ p*+=ec)s...............................................................................................;C

15.. Li(6 !ac6a/e E>pl+*e* 7i) ei)+*........................................................................................;

1. Navi/a)e i( )e Java s+*ce c+e...............................................................................................30

1.1. $pe(i(/ a class....................................................................................................................30

1.;. +se a( 6e:+a* (avi/a)i+(...........................................................................................3;1.3. ic6 $)li(e........................................................................................................................3;

1.. $pe( %:pe Hie*a*c:............................................................................................................33

1.5. Sea*c ial+/........................................................................................................................33

1.. I(c*e2e()al ?(...................................................................................................................3

1.. Fi( ele2e() ase +( c**e() selec)i+(..............................................................................3

1.C. A((+)a)i+( (avi/a)i+(s.........................................................................................................3

1.. S+7 i( B*eac*2.............................................................................................................3

1.10. S+*)c)s............................................................................................................................0

1. $pe(i(/ a *es+*ce.....................................................................................................................1

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1C.;. ic6 Fi>...............................................................................................................................;

1. Ge(e*a)i(/ c+e.........................................................................................................................

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;0.3. 9*ea)e class..........................................................................................................................

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;1. Reac)+*i(/..................................................................................................................................50

;1.1. Reac)+*i(/...........................................................................................................................50

;1.;. Reac)+*i(/ i( Eclipse...........................................................................................................50

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;;. E>e*cise' Reac)+*i(/..................................................................................................................5;

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;;.3. E>)*ac) 9+(s)a()...................................................................................................................53

;3. Eclipse S+*)c)s........................................................................................................................5

;. "si(/ p*+=ec) epe(e(cies........................................................................................................55

;5. "si(/ JARs 4li*a*ies i( Eclipse...................................................................................................5

;5.1. Ai(/ a Java li*a*: )+ )e p*+=ec) classpa)......................................................................5

;5.;. A))ac s+*ce c+e )+ a Java li*a*:.....................................................................................5

;5.3. A Java+c +* a JAR...........................................................................................................5C

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;C. Ava(ce Eclipse "pa)e 2a(a/e* +p)i+(s...............................................................................5

;C.1. a(al i(s)alla)i+( + pl/-i(s 4*+pi(s +le*....................................................................5

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;C.3. I(s)alli(/ ea)*es via )e c+22a( li(e................................................................................

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;.1. 9+(?/*i(/ )e Eclipse IDE..................................................................................................C

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30. Eclipse c+e cec6s....................................................................................................................

30.1. Java Devel+p2e() %++l6i) c+e cec6s.................................................................................

30.;. 9+(?/*i(/ )e c+e se))i(/s...............................................................................................

30.3. A((+)a)i+(-ase Nll a(al:sis............................................................................................C

31. +*e +( p*ee*e(ce se))i(/s.......................................................................................................

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31.3. E>p+*) a( i2p+*) p*ee*e(ce se))i(/s.................................................................................C1


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31.. !*ee*e(ce se))i(/s pe* p*+=ec)............................................................................................C;

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3;.;. Ie()i:i(/ p*ee*e(ce se))i(/ vales...................................................................................C3

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1. %e Eclipse IDE

+s) pe+ple 6(+7 Eclipse as a( i()e/*a)e evel+p2e() e(vi*+(2e() 4IDE +* Java. %e Eclipse

IDE is e?(i)el: )e 2+s) 6(+7( p*+c) + )e Eclipse $pe( S+*ce p*+=ec). %+a: i) is )e leai(/evel+p2e() e(vi*+(2e() +* Java 7i) a 2a*6e) sa*e + app*+>i2a)el: 5.

%e Eclipse IDE ca( e e>)e(e 7i) ai)i+(al s+)7a*e c+2p+(e()s. Eclipse calls )ese s+)7a*e

c+2p+(e()splug-ins. Seve*al $pe( S+*ce p*+=ec)s a( c+2pa(ies ave e>)e(e )e Eclipse IDE

+* c*ea)e s)a(al+(e applica)i+(s 4Eclipse R9! +( )+p + )e Eclipse *a2e7+*6.

;. %e Eclipse p*+=ec)

%e Eclipse IDE a( +)e* p*+c)s a*e c*ea)e : a( $pe( S+*ce c+22(i):. Eclipse s+)7a*e is

se i( seve*al ie*e() a*eas, e./. as a evel+p2e() e(vi*+(2e() +* Java +* A(*+i

applica)i+(s. %e *++)s + Eclipse /+ ac6 )+ ;001.%e Eclipse $pe( S+*ce c+22(i): as +ve*

;00 $pe( S+*ce p*+=ec)s c+ve*i(/ ie*e() aspec)s + s+)7a*e evel+p2e().

3. Eclipse F+(a)i+(

%e Eclipse p*+=ec)s a*e /+ve*(e : )e Eclipse Foundation. %e Eclipse Foundationis a (+(-

p*+?), 2e2e*-spp+*)e c+*p+*a)i+( )a) +s)s )e Eclipse $pe( S+*ce p*+=ec)s a( elps )+

cl)iva)e +) a( $pe( S+*ce c+22(i): a( a( ec+s:s)e2 + c+2ple2e()a*: p*+c)s a(

se*vices.

. Eclipse !lic Lice(se

%e Eclipse Public License4E!L is a( $pe( S+*ce s+)7a*e lice(se se : )e Eclipse

Foundation+* i)s s+)7a*e. %e E!L is esi/(e )+ e si(ess-*ie(l:. E!L lice(se p*+/*a2s ca(

e se, 2+i?e, c+pie a( is)*i)e *ee + ca*/e. %e c+(s2e* + E!L-lice(se s+)7a*e

ca( c++se )+ se )is s+)7a*e i( cl+se s+*ce p*+/*a2s. $(l: 2+i?ca)i+(s i( )e +*i/i(al E!L

c+e 2s) als+ e *elease as E!L c+e.

%e Eclipse Foundationals+ valia)es )a) s+*ce c+e c+()*i)e )+ Eclipse p*+=ec)s is *ee +

I()ellec)al !*+pe*): 4I! isses. %is p*+cess is 6(+7( as I! clea(si(/.

%e pe*2issive E!L a( )e I! clea(si(/ e+*) + )e Eclipse Foundation2a6es *esi(/ )e s+*cec+e + Eclipse p*+=ec)s a))*ac)ive +* si(ess c+2pa(ies.

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5. Java *e@i*e2e()s + Eclipse

Eclipse *e@i*es a( i(s)alle Java *()i2e. Eclipse . *e@i*es a) leas) Java )+ *(. F+* )ee>a2ples i( )is ))+*ial, :+ s+l se Java i( ve*si+( C. Java ca( e +7(l+ae i( )7+ Kav+*s'

aJRE4Java R()i2e E(vi*+(2e() a( aJDK4Java Devel+p2e() #i) ve*si+(.

%e Eclipse IDE c+()ai(s i)s +7( Java c+2pile* e(ce a JRE is scie() +* 2+s) )as6s 7i) Eclipse.

%eJDKve*si+( + Java is *e@i*e i :+ c+2pile Java s+*ce c+e +( )e c+22a( li(e a( +*

ava(ce evel+p2e() sce(a*i+s, +* e>a2ple, i :+ se a)+2a)ic ils +* i :+ evel+p Java

7e applica)i+(s.

. D+7(l+a Eclipse

%e Eclipse IDE c+(sis)s + seve*al c+2p+(e()s. %e Eclipse.+*/ 7esi)e p*+vies p*e-pac6a/e

Eclipse is)*i)i+(s )+ p*+vie +7(l+as +* ):pical se cases. %e Eclipse IDE for Java

Developers is)*i)i+( is speci?call: esi/(e +* s)a(a* Java evel+p2e().D+7(l+a

)e Eclipse IDE for Java Developers pac6a/e *+2 )e +ll+7i(/ "RL. E(s*e )a) :+ +7(l+a )e

*i/) ve*si+( +* :+* Java ve*si+( 4e./., 3; i) vs. i).

))p'MM777.eclipse.+*/M+7(l+as

%e +ll+7i(/ sc*ee(s+) s+7s )e Eclipse +7(l+a 7esi)e +* a Li(> s:s)e2. !*ess +( )e li(6

esie )e pac6a/e esc*ip)i+( 4e./., Linux 64-it )+ s)a*) )e +7(l+a.

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%e +7(l+a is a !"ip?le.

. Eclipse I(s)alla)i+(

A)e* :+ +7(l+ae )e !"ip?le 7i) )e Eclipse is)*i)i+(, (pac6 i) )+ a l+cal i*ec)+*:.+s) +pe*a)i(/ s:s)e2s ca( e>)*ac) 8ip ?les i( )ei* ?le *+7se* 4e./., #indo$s % 7i) a *i/)-clic6+( )e ?le a( selec)i(/ E>)*ac) all...O.

I i( +), sea*c 7i) G++/le +* H+7 )+ (8ip a ?le +( ...O, *eplaci(/ ...O 7i) :+* +pe*a)i(/s:s)e2.

Warning

E>)*ac) Eclipse )+ a i*ec)+*: 7i)+) spaces i( i)s pa) a( + (+) se a

2appe (e)7+*6 *ive 4e 4ic*+s+) M ac ?le i(

)e i*ec)+*: 7e*e :+ (pac6e Eclipse.

%e s:s)e2 7ill p*+2p) :+ +* a $or&space. %e $or&spaceis )e l+ca)i+( i( :+* ?le s:s)e2 i(

7ic Eclipse s)+*es i)s c+(?/*a)i+( a( p+)e()iall: +)e* *es+*ces, li6e p*+=ec)s. Selec) a(

e2p): i*ec)+*: a( clic6 )e 'K))+(.

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Eclipse s)a*)s a( s+7s )e #elco(epa/e. 9l+se )is pa/e : clic6i(/ )exesie #elco(e.

A)e* cl+si(/ )e 7elc+2e sc*ee(, )e applica)i+( s+l l++6 si2ila* )+ )e +ll+7i(/ sc*ee(s+).

C.;. Appea*a(ce

%e appea*a(ce + Eclipse ca( e c+(?/*e. B: eal), Eclipse sips 7i) a e7 )e2es ) :+

ca( als+ e>)e( Eclipse 7i) (e7 )e2es.

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%+ ca(/e )e appea*a(ce, selec) *+2 )e 2e( #indo$Q PreferencesQ )eneralQ*ppearance.

%e +,e(eselec)i+( all+7s :+ )+ ca(/e )e appea*a(ce + :+* Eclipse IDE. F+* e>a2ple :+

ca( s7i)c )+ )e Dar&)e2e + Eclipse.

. I2p+*)a() Eclipse )e*2i(+l+/:

Eclipse p*+vies Perspectives, ie$sa( Editors. ie$sa( Editorsa*e /*+pe i()+ Perspectives.

.1. )e*(al *es+*ces 4e./., p*+=ec)s *+2)e $or&space.+ ca( c++se )e 7+*6space *i(/ s)a*)-p + Eclipse +*

via )e 2e( 4FileQ .$itc, #or&spaceQ 't,ers.


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.;. Eclipse p*+=ec)s

A( Eclipse p*+=ec) c+()ai(s s+*ce, c+(?/*a)i+( a( i(a*: ?les *ela)e )+ a ce*)ai( )as6 a(

/*+ps )e2 i()+ ilale a( *esale (i)s. A( Eclipse p*+=ec) ca( ave naturesassi/(e )+ i)

7ic esc*ie )e p*p+se + )is p*+=ec). F+* e>a2ple, )e Javanaturee?(es a p*+=ec) as Java

p*+=ec). !*+=ec)s ca( ave 2l)iple (a)*es c+2i(e )+ 2+el ie*e() )ec(ical aspec)s.

/atures+* a p*+=ec) a*e e?(e via )e !pro0ect?le i( )e p*+=ec) i*ec)+*:. !*+=ec)s i( Eclipse

ca((+) c+()ai( +)e* p*+=ec)s.

.3. ie7s a( ei)+*s pa*)s

Partsa*e se* i()e*ace c+2p+(e()s 7ic all+7 :+ )+ (avi/a)e a( 2+i: a)a. A pa*) ca( ave

a *+p+7( 2e(, c+()e>) 2e(s a( a )++la*. !a*)s ca( e *eel: p+si)i+(e i( )e se*

i()e*ace.

!a*)s a*e ):picall: classi?e i()+ vie$sa( editors. %e is)i(c)i+( i()+ vie7s a( ei)+*s is (+)

ase +( )ec(ical ie*e(ces, ) +( a ie*e() c+(cep) + si(/ a( a**a(/i(/ )ese pa*)s.

A vie7 is ):picall: se )+ 7+*6 +( a se) + a)a, 7ic 2i/) e a ie*a*cical s)*c)*e. I a)a is

ca(/e via )e vie7, )is ca(/e is ):picall: i*ec)l: applie )+ )e (e*l:i(/ a)a s)*c)*e. A

vie7 s+2e)i2es all+7s s )+ +pe( a( ei)+* +* a selec)e se) + a)a.

A( e>a2ple +* a vie7 is )e Pac&age Explorer, 7ic all+7s :+ )+ *+7se )e ?les + Eclipse

p*+=ec)s. I :+ ca(/e a)a i( )ePac&age Explorer, e./., *e(a2i(/ a ?le, )e ?le (a2e is i*ec)l:

ca(/e +( )e ?le s:s)e2.


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Ei)+*s a*e ):picall: se )+ 2+i: a si(/le a)a ele2e(), e./., )e c+()e() + a ?le +* a a)a

+=ec). %+ appl: )e ca(/es 2ae i( a( ei)+* )+ )e a)a s)*c)*e, )e se* as )+ e>plici)l:

save )e ei)+* c+()e().

F+* e>a2ple, )eJavaei)+* is se )+ 2+i: Java s+*ce ?les. 9a(/es )+ )e s+*ce ?le a*e

applie +(ce )e se* selec)s )e.avec+22a(. A i*): ei)+* )a is 2a*6e 7i) a( as)e*is6 )+

)e le) + )e 2+i?e (a2e + )e ?le.

.. !e*spec)ive

Aperspectiveis a visal c+()ai(e* +* a se) + pa*)s. !e*spec)ives ca( e se )+ s)+*e ie*e()

a**a(/e2e()s + pa*)s. F+* e>a2ple, )e Eclipse IDE ses )e2 )+ la:+) )e vie7s app*+p*ia)e )+

)e )as6 4evel+p2e(), e//i(/, *evie7, e)c. )e evel+pe* 7a()s )+ pe*+*2.

$pe( ei)+*s a*e ):picall: sa*e e)7ee( pe*spec)ives, i.e., i :+ ave a( ei)+* +pe( i(

)eJavape*spec)ive +* a ce*)ai( class a( s7i)c )+ )e Debugpe*spec)ive, )is editors)a:s

+pe(. + ca( s7i)c Perspectivesvia )e #indo$Q 'pen PerspectiveQ 't,er!!!2e( e()*:.

%e 2ai( pe*spec)ives se +* Java evel+p2e() a*e )eJavape*spec)ive a()e Debugpe*spec)ive.

+ ca( ca(/e )e la:+) a( c+()e() 7i)i( a pe*spec)ive : +pe(i(/ +* cl+si(/ pa*)s a( : *e-

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ie$Q 't,er!!!2e( e()*:. %e +ll+7i(/ .,o$ ie$ial+/ all+7s :+ )+ sea*c +* ce*)ai(parts.

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I :+ 7a() )+ *ese) :+* c**e() pe*spec)ive )+ i)s eal), se )e #indo$Q Reset

Perspective2e( e()*:. + ca( save )e c**e()l: selec)e pe*spec)ive via #indo$Q .ave

Perspective *s!!!.

%e #indo$Q 1usto(i"e Perspective!!!2e( e()*: all+7s :+ )+ a=s) )e selec)e pe*spec)ive.

F+* e>a2ple, :+ ca( ie +* s+7 )++la* a( 2e( e()*ies.

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10. Eclipse Java evel+p2e() se* i()e*ace

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2+*e p*ee?(eperspectives, e./., )e Debugperspective.

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PerspectiveQ 't,er!!!2e( e()*:.

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:+*perspectivea( :+ 7a() )+ *es)+*e Eclipse )+ i)s +*i/i(al s)a)e. F+* e>a2ple, :+ 2i/) ave

cl+se a vie7.+ ca( *ese) aperspective)+ i)s +*i/i(al s)a)e via )e #indo$Q Reset

Perspective2e( e()*:.

10.3. Java pe*spec)ive a( !ac6a/e E>pl+*e*

%e eal)perspective+* Java evel+p2e() ca( e +pe(e via #indo$Q 'pen

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all+7s :+ )+ *+7se :+*pro0ectsa( )+ selec) )e c+2p+(e()s :+ 7a() )+ +pe( i( a( ei)+* via

a +le-clic6.

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a( +le-clic6 i). %is 7ill +pe( )e ?le i( )e eal) Java editor.

%e +ll+7i(/ pic)*e s+7s )e Eclipse IDE i( i)s s)a(a* Javaperspective. %e Pac&ageExplorervie7 is +( )e le). I( )e 2ile :+ see )e +pe( editors. Seve*al editorsa*e s)ac6e i(

)e sa2e c+()ai(e* a( :+ ca( s7i)c e)7ee( )e2 : clic6i(/ +( )e c+**esp+(i(/ )a. "si(/

*a/ a( *+p :+ ca( 2+ve a( ei)+* )+ a (e7 p+si)i+( i( )e Eclipse IDE.

%+ )e *i/) a( el+7 )e ei)+* a*ea :+ ?( 2+*e vie$s7ic 7e*e c+(sie*e sel : )e

evel+pe* + )e pe*spec)ive. F+* e>a2ple, )eJavadocvie7 s+7s )e Java+c + )e selec)e

class +* 2e)+.

1;


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Eclipse Java IDE

11. Eclipse Java pe*spec)ive

11.1. %++la*%e applica)i+( )++la* c+()ai(s ac)i+(s 7ic :+ ):picall: pe*+*2, e./., c*ea)i(/ Java *es+*ces

+* *((i(/ Java p*+=ec)s. I) als+ all+7s :+ )+ s7i)c e)7ee( pe*spec)ives.

11.;. "sel vie7s

%eJavaperspectivec+()ai(s sel vie$s+* 7+*6i(/ 7i) :+* Java p*+=ec). %e +ll+7i(/

esc*ip)i+( e>plai(s )e 2+s) i2p+*)a() +(es.

11.3. !ac6a/e E>pl+*e* vie7

%e Pac&age Explorervie7 all+7s :+ )+ *+7se )e s)*c)*e + :+* p*+=ec)s a( )+ +pe( ?les i(

a( editorvia +le-clic6 +( )e ?le. I) is als+ se )+ ca(/e )e s)*c)*e + :+* p*+=ec). F+*

e>a2ple, :+ ca( *e(a2e ?les +* 2+ve ?les a( +le*s via *a/ a( *+p. A *i/)-clic6 +( a ?le +*

+le* s+7s :+ )e availale +p)i+(s.

F+* 2+*e i(+ +( )e !ac6a/e E>pl+*e* see Section 1.1! Pac"age E#plorera( Section 1.$!Lin" Pac"age E#plorer %it& e'itor.

13


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Eclipse Java IDE

11.. $)li(e vie7

%e 'utlinevie7 s+7s )e s)*c)*e + )e c**e()l: selec)e s+*ce ?le.

11.5. !*+le2s vie7

%e Proble(svie7 s+7s e**+*s a( 7a*(i(/ 2essa/es. S++(e* +* la)e* :+ 7ill *( i()+ p*+le2s

7i) :+* c+e +* :+* p*+=ec) se)p. %+ vie7 )e p*+le2s i( :+* p*+=ec), :+ ca( se

)e Proble(svie7 7ic is pa*) + )e s)a(a* Javaperspective. I )is vie7 is cl+se, :+ ca(

+pe( i) via #indo$Q .,o$ ie$Q Proble(s.

%e 2essa/es 7ic a*e ispla:e i( )e Proble(svie7 ca( e c+(?/*e via )e *+p-+7(2e( + )e vie7. F+* e>a2ple, )+ ispla: )e p*+le2s *+2 )e c**e()l: selec)e p*+=ec),

selec) 1on2gure 1ontentsa( se) )e Sc+pe )+ 'n an3 ele(ent in t,e sa(e pro0ect.

1


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Eclipse Java IDE

%e Proble(svie7 als+ all+7s :+ )+ )*i//e* a uic& 2xvia a *i/) 2+se-clic6 +( seve*al selec)e

2essa/es. See Section 1(.)! *uic" +i#+* e)ails +( )e uic& 2x(c)i+(ali):.

11.. Java+c vie7

%eJavadocvie7 s+7s )e +c2e()a)i+( + )e selec)e ele2e() i( )e Java editor.

11.. Java ei)+*

15


25/115

Eclipse Java IDE

%e Java ei)+* is se )+ 2+i: )e Java s+*ce c+e. Eac Java s+*ce ?le is +pe(e i( a

sepa*a)e ei)+*. I :+ clic6 i( )e le) c+l2( + )e ei)+*, :+ ca( c+(?/*e i)s p*+pe*)ies, +*

e>a2ple, )a) li(e (2e* s+l e ispla:e

1;. 9*ea)e :+* ?*s) Java p*+/*a2

1;.1. %a*/e) + )is e>e*cise

%e +ll+7i(/ sec)i+( esc*ies +7 )+ c*ea)e a 2i(i2al Java applica)i+( si(/ Eclipse. I) is

)*ai)i+( i( )e p*+/*a22i(/ 7+*l )+ c*ea)e a s2all p*+/*a2 7ic 7*i)es Hell+


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Eclipse Java IDE

!*ess )e Finis,))+( )+ c*ea)e )e p*+=ec). A (e7 p*+=ec) is c*ea)e a( ispla:e as a +le*.

$pe( )ee.v+/ella.eclipse.ie.?*s) +le* a( e>pl+*e )e c+()e() + )is +le*.

1


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Eclipse Java IDE

1C


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Eclipse Java IDE

1;.3. 9*ea)e pac6a/e

I( )e +ll+7i(/ s)ep :+ c*ea)e a (e7 pac6a/e. A /++ c+(ve()i+( +* )e p*+=ec) a( pac6a/e

(a2e is )+ se )e sa2e (a2e +* )e )+p level pac6a/e a( )e p*+=ec). F+* e>a2ple, i :+ (a2e

:+* p*+=ec) c+2.e>a2ple.=avap*+=ec) :+ s+l als+ sec+2.e>a2ple.=avap*+=ec) as )e )+p-

level pac6a/e (a2e.

%+ c*ea)e )e e.v+/ella.eclipse.ie.?*s) pac6a/e, selec) )e s*c +le*, *i/)-clic6 +( i) a(

selec) /e$Q Pac&age.

,ip

Reve*se +2ai( (a2es s+l e se +* pac6a/es )+ p*eve() (a2e

clases. I) is *ela)ivel: (li6el: )a) a(+)e* c+2pa(: e?(es a class

calle )es) i( )e c+2.v+/ella pac6a/e ecase )is is )e *eve*se "RL +

)e v+/ella G2H c+2pa(:.

E()e* )e (a2e + :+* (e7 pac6a/e i( )e ial+/ a( p*ess )e Finis,))+(.

1


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Eclipse Java IDE

1;.. 9*ea)e Java class

9*ea)e a Java class. Ri/)-clic6 +( :+* pac6a/e a( selec) /e$Q 1lass.E()e* :Fi*s)9lass as )e class (a2e a( selec) )epublic static void (ain 5.tring7args8 cec6+>.

!*ess )e Finis,))+(. %is c*ea)es a (e7 ?le a( +pe(s )e Java editor. 9a(/e )e class ase

+( )e +ll+7i(/ lis)i(/.

package de.vogella.eclipse.ide.first;

public class MyFirstClass {

;0


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Eclipse Java IDE

public static void main(String[] args {

System.out.println(!"ello #clipse$!;

%

%

+ c+l als+ i*ec)l: c*ea)e (e7 pac6a/es via )is ial+/. I :+ e()e* a (e7 pac6a/e i( )isial+/, i) is c*ea)e a)+2a)icall:.

1;.5. R( :+* p*+=ec) i( Eclipse

N+7 *( :+* c+e. Ei)e* *i/)-clic6 +( :+* Java class i( )e Pac&age Explorer+* *i/)-clic6 i( )e

Java class a( selec) Run-asQJava application.

;1


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Eclipse Java IDE

Eclipse 7ill *( :+* Java p*+/*a2. + s+l see )e +)p) i( )e 1onsolevie7 .

9+(/*a)la)i+(s + c*ea)e :+* ?*s) Java p*+=ec), a pac6a/e, a Java class a( :+ *a( )isp*+/*a2 i(sie Eclipse.

13. R( Java p*+/*a2 +)sie Eclipse

13.1. 9*ea)e JAR ?le

%+ *( )e Java p*+/*a2 +)sie + )e Eclipse IDE, :+ (ee )+ e>p+*) i) as a J*R?le. AJ*R?le is

)e s)a(a* is)*i)i+( +*2a) +* Java applica)i+(s. Selec) :+* p*+=ec), *i/)-clic6 i) a( selec)

)e Export2e( e()*:.

;;


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Eclipse Java IDE

;3


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Eclipse Java IDE

Selec)J*R 2lea( selec) )e /ext))+(. Selec) :+* p*+=ec) a( e()e* )e e>p+*) es)i(a)i+( a(

a (a2e +* )eJ*R?le. I (a2e i) 2:p*+/*a2.=a*.!*ess %e Finis,))+(. %is c*ea)es aJ*R?le i(

:+* selec)e +)p) i*ec)+*:.

;


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Eclipse Java IDE

13.;. R( :+* p*+/*a2 +)sie Eclipse

$pe( a c+22a( sell, e./., (e* ic*+s+) a2ple, i :+*J*Ris l+ca)e i( c9:te(p, se )e +ll+7i(/

c+22a('

c c'T)e2p

%+ *( )is p*+/*a2, i(cle )eJ*R?le i( :+* classpat,. %e classpat,e?(es 7ic Java

classes a*e availale )+ )e Java *()i2e. + ca( a a J*R?le )+ )e classpa) 7i) )e -

classpat,+p)i+(.

=ava -classpa) 2:p*+/*a2.=a* e.v+/ella.eclipse.ie.?*s).:Fi*s)9lass

%:pe )e a+ve c+22a( i( )e i*ec)+*: :+ se +* )e e>p+*) a( :+ see )e Hell+ EclipseO

+)p) i( :+* c+22a( sell.

;5


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Eclipse Java IDE

1. E>p+*)i(/ a( i2p+*)i(/ p*+=ec)s

1.1. E>p+*)i(/ p*+=ec)s

+ ca( e>p+*) a( i2p+*) Eclipse p*+=ec)s. %is all+7s :+ )+ sa*e p*+=ec)s 7i) +)e* pe+ple a(

)+ i2p+*) e>is)i(/ p*+=ec)s. %+ e>p+*) Eclipse p*+=ec)s, selec) FileQ ExportQ )eneralQ*rc,ive

Filea( selec) )e p*+=ec)s :+ 7a() )+ e>p+*).

;


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Eclipse Java IDE

1.;. I2p+*)i(/ p*+=ec)s

%+ i2p+*) p*+=ec)s, selec) FileQ I(portQ Existing Pro0ects into #or&space. + ca( i2p+*) *+2 a(

a*cive ?le, i.e., 8ip ?le +* i*ec)l: i2p+*) )e p*+=ec)s i( case :+ ave e>)*ac)e )e 8ip ?le.

;


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Eclipse Java IDE

;C


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Eclipse Java IDE

15. Navi/a)i(/ )e Java s+*ce c+e

15.1. !ac6a/e E>pl+*e*

%e p*i2a*: 7a: + (avi/a)i(/ )*+/ :+* p*+=ec) is )e Pac&age Explorer. + ca( +pe( (+es

i( )e )*ee a( +pe( a ?le i( a( ei)+* : +le-clic6i(/ +( )e c+**esp+(i(/ e()*: i(

)e Pac&age Explorer.

15.;. Fil)e* *es+*ces i( )e !ac6a/e E>pl+*e*

%e *+p-+7( 2e( i( )e Pac&age Explorerall+7s :+ )+ ?l)e* )e *es+*ces 7ic s+l eispla:e +* ie(.

;


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Eclipse Java IDE

30


40/115

Eclipse Java IDE

15.3. 9l+si(/ a( +pe(i(/ p*+=ec)s

+ ca( cl+se p*+=ec)s via a *i/)-clic6 +( i) a( : selec)i(/ )e 1lose Pro0ect2e( e()*:.

Al)e*(a)ivel:, i :+ 7+*6 +( a p*+=ec), :+ ca( cl+se all (*ela)e p*+=ec)s via a *i/)-clic6 +( i)

a( : selec)i(/ )e 1lose ;nrelated Pro0ects2e( e()*:.

Note

9l+si(/ p*+=ec)s saves 2e2+*: i( Eclipse a( ca( *ece )e il )i2e.%+

+pe( a cl+se p*+=ec) +le-clic6 +( i), +* *i/)-clic6 i) a( selec) 'pen

Pro0ect. Eclipse i/(+*es cl+se p*+=ec)s, e./., )e Proble(svie7 +es +(l:

s+7 e**+*s + +pe(e p*+=ec)s. %is ):picall: elps :+ +cs :+*

a))e()i+( +( )e p*+=ec).

,ip

+ ca( se )e ?l)e* (c)i+(ali): +* )e Pac&age Explorervie7 )+ ie

)e cl+se p*+=ec)s.

31


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Eclipse Java IDE

15.. Li(6 !ac6a/e E>pl+*e* 7i) ei)+*

%e Pac&age Explorervie7 all+7s :+ )+ ispla: )e ass+cia)e ?le *+2 )e c**e()l: selec)e

ei)+*. F+* e>a2ple, i :+ a*e 7+*6i(/ +( )e F++.=ava ?le i( )e Java editora( s7i)c )+ )e

Java editor+ )e a*.=ava ?le, )e( )e c+**esp+(i(/ ?le 7ill e selec)e i( )e Pac&age

Explorervie7.

%+ ac)iva)e )is eavi+*, p*ess )e Lin& $it, Editor))+( i( )e Pac&age explorer vie7 as

epic)e i( )e +ll+7i(/ sc*ee(s+).

3;


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Eclipse Java IDE

1. Navi/a)e i( )e Java s+*ce c+e

+ ca( als+ se +)e* 2ea(s )a( )e !ac6a/e E>pl+*e* )+ (avi/a)e :+* s+*ce c+e. %e+ll+7i(/ esc*ip)i+( lis)s )e 2+s) i2p+*)a() +(es.

1.1. $pe(i(/ a class

+ ca( (avi/a)e e)7ee( )e classes i( :+* p*+=ec) via )e Pac&age Explorer vie7 as esc*iee+*e. + ca( (avi/a)e )e )*ee a( +pe( a ?le via +le-clic6.

I( ai)i+(, :+ ca( +pe( a(: class : p+si)i+(i(/ )e c*s+* +( )e class i( a( ei)+* a(p*essi(/ +3. Al)e*(a)ivel:, :+ ca( p*essCtrlUS&itU,. %is s+7s )e +ll+7i(/ ial+/ i( 7ic:+ ca( e()e* )e class (a2e )+ +pe( i).

+ ca( als+ sea*c +* pac6a/e (a2es. Eac pa*) + )e pac6a/e (a2e 2s) e( 7i)

a !


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Eclipse Java IDE

%e 'pen +3pe Dialogals+ spp+*)s 1a(el1aseli6e sea*c, e./., i) 2a)ces capi)al le))e*s i( )eclass (a2e. F+* e>a2ple, i :+ 7+l sea*c +* )e $(%+cLis)e(e* class :+ c+lse '+L+* '+oListas sea*c )e*2.

3


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Eclipse Java IDE

,ip

%+ av+i s> 2a)ci(/, :+ ca( a a space a)e* )e class (a2e. F+*

e>a2ple, :+ ca( ):pe .election4)e*e is a space a)e* selec)i+( )+ 2a)c

)e Selec)i+( class ) (+) )e Selec)i+(Lis)e(e* class. a2ple, p*ess )e Ctrl6e: a( 4le) clic6 7i) )e 2+se +( )e (a2e + a class

)+ =2p i()+ )e class ecla*a)i+(.

Si2ila* )+ )e le) 2+se clic6 c+2i(e 7i) )e Ctrl, :+ ca( se )e +36e: )+ /+ i()+ a class.

1.3. ic6 $)li(e

I :+ *i/)-clic6 i( :+* Java ei)+*, :+ ca( selec) )e uic& 'utline+p)i+( 7ic s+7s :+ a(

+)li(e + :+* Java class 7i) )e +p)i+( )+ ?l)e*.

35


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Eclipse Java IDE

%e s+*)c) +* +pe(i(/ )e uic& 'utlineis CtrlU. B: eal), uic& 'utlines+7s +(l: )e

i*ec) 2e2e*s a( ?els + )e class. !*ess CtrlUa/ai( )+ s+7 als+ )e i(e*i)e 2e2e*s

a( ?els.

%e eal) l++6 + )e uic& 'utline+p)i+( is si2ila* )+ )e uic& 'utlinevie7 +

)eJavaperspective.

1.. $pe( %:pe Hie*a*c:

%e ):pe ie*a*c: + a class s+7s :+ 7ic classes i) e>)e(s a( 7ic i()e*aces i)

i2ple2e()s. + ca( se )e ):pe ie*a*c: )+ (avi/a)e )+ +(e + )ese ele2e()s.

%+ +pe( )e ):pe ie*a*c: + )e selec)e class, *i/)-clic6 i( )e ei)+* a( selec) 'pen +3pe

=ierarc,34S+*)c)' +$ +* uic& +3pe =ierarc,34S+*)c)' CtrlU,.

1.5. Sea*c ial+/

ia )e .earc,Q .earc,2e( 4S+*)c)' CtrlU/ :+ ca( +pe( )e sea*c ial+/ + Eclipse.

"se )eJava .earc,)a )+ sea*c +* Java ele2e()s, e./., 2e)+s.

3


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Eclipse Java IDE

3


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Eclipse Java IDE

%e .earc,vie7 s+7s )e sea*c *esl)s +* )e selec)e sc+pe. + ca( +le-clic6 +( a sea*c

e()*: )+ (avi/a)e )+ )e c+**esp+(i(/ p+si)i+( i( )e ei)+*. %e c**e()l: selec)e sea*c *esl) is

als+ i(ica)e via a( a**+7 i( )e le) +*e* + )e ei)+*.

"se )e File .earc,)a )+ sea*c +* )e>).

3C


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Eclipse Java IDE

Eclipse ass+cia)es ?le e>)e(si+(s 7i) )e eal) )a. + ca( cs)+2i8e )e availale sea*c )as

via )e 1usto(i"e))+( i( )e Sea*c ial+/. "si(/ )e Re(e(ber t,e last used page:+ ca(

c+(?/*e Eclipse )+ se :+* las) )a as eal).

,ip

3


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Eclipse Java IDE

%e .earc,vie7 all+7s :+ )+ ele)e sea*c *esl)s via )e Delete6e:.

0


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Eclipse Java IDE

1.. I(c*e2e()al ?(

+ ca( se )e CtrlUs+*)c) )+ ac)iva)e Incre(ental Find. %is all+7s :+ )+ sea*c i( )e

c**e() ac)ive ei)+* +* a )e>) 7ic is ispla:e i( )e s)a)s li(e as epic)e : )e +ll+7i(/

sc*ee(s+). Repea) CtrlUi( +*e* )+ 2+ve )+ )e (e>) +cc**e(ce + )e c**e() sea*c )e*2.

%e ava()a/e + )is sea*c is )a) (+ p+p-p ial+/ is +pe(e 7ic l+c6s +)e* ele2e()s i()e Eclipse IDE.

1.. Fi( ele2e() ase +( c**e() selec)i+(

I :+ ave selec)e a( ele2e() i( )e ei)+*, :+ ca( se )e CtrlUs+*)c) )+ sea*c +* )e

(e>) +cc**e(ce + )e selec)e )e>) a( CtrlUS&itU+* )e p*evi+s ele2e().

1.C. A((+)a)i+( (avi/a)i+(s

+ ca( als+ (avi/a)e via )e a((+)a)i+( ))+(s, e./., +* =2pi(/ )+ )e (e>) e**+* +* 7a*(i(/ i(

:+* s+*ce c+e.

B: p*essi(/ )e ))+(s :+ ca( (avi/a)e )+ )e *ela)e a((+)a)i+(s. + ca( als+ se )e6e:+a* s+*)c) CtrlU.49)*l pls )e +) si/( +* selec)i(/ )e (e>) a((+)a)i+( +* CtrlU!49)*lpls )e c+22a si/( +* selec)i(/ )e p*evi+s a((+)a)i+(.

1


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Eclipse Java IDE

%e +ll+7i(/ sc*ee(s+) s+7s s+*ce c+e 7i) )7+ 7a*(i(/s a( +(e e**+* a( :+ ca(

(avi/a)e e)7ee( )e c+**esp+(i(/ c+es via )e a((+)a)i+( ))+(s.


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Eclipse Java IDE

+ ca( als+ ac)iva)e )e breadcru(b2+e +* )e Java ei)+* 7ic all+7s :+ )+ (avi/a)e )e

s+*ce c+e i*ec)l: *+2 )e Java ei)+*. + ca( ac)iva)e )is 2+e via *i/)-clic6 i( )e ei)+*

a( : selec)i(/ )e .,o$ in readcru(be()*:.

%is all+7s :+ )+ (avi/a)e )e s+*ce c+e *+2 )e ei)+* as epic)e i( )e +ll+7i(/sc*ee(s+).

3


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Eclipse Java IDE

%+ ie i) a/ai(, *i/)-clic6 +( a *eac*2 e()*: a( selec) =ide readcru(b.

1.10. S+*)c)s

%e*e a*e a l+) + s+*)c)s availale +* (avi/a)i+(. !lease cec6 )e appe(i> + )is ++6 +*

)ese s+*)c)s +* +pe(#indo$UPreferencesQ )eneralQ Ke3s)+ ?( a( *ee?(e s+*)c)s a)

*()i2e.


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Eclipse Java IDE

1. $pe(i(/ a *es+*ce

1.1. ia !ac6a/e E>pl+*e* vie7

+ ca( als+ (avi/a)e )+ (+(-Java s+*ce ?les via )e Pac&age Explorervie7 a( +pe( a ?le via

+le-clic6 +( i).

1.;. $pe( Res+*ce ial+/

I( ai)i+( )+ )e Pac&age Explorervie7 :+ ca( +pe( a(: ?le i( :+* p*+=ec)s via )e 'pen

Resourceial+/ 7ic ca( e +pe(e via )e CtrlUS&itU2s+*)c). %is s+*)c) +pe(s a ial+/

i( 7ic :+ ca( e()e* )e *es+*ce (a2e )+ +pe( i).

5


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Eclipse Java IDE

1C. 9+()e() Assis) a( ic6 Fi>

1C.1. 9+()e() assis)

1ontent assistis a (c)i+(ali): i( Eclipse 7ic all+7s )e evel+pe* )+ /e) c+()e>)-se(si)ive c+e

c+2ple)i+( i( a( ei)+* p+( se* *e@es). I) ca( e i(v+6e : p*essi(/ CtrlUSpace.

F+* e>a2ple, ):pe syso i( )e ei)+* + a Java s+*ce ?le a( )e( p*ess CtrlUSpace. %is 7ill

*eplace syso7i)System.out.println(!!.

I :+ ave a *ee*e(ce )+ a( +=ec), +* e>a2ple, )e +=ec) pe*s+( + )e ):pe !e*s+( a( (ee )+

see i)s 2e)+s, ):pepe*s+( a( p*ess CtrlUSpace.

1C.;. ic6 Fi>

) i( )e ei)+*. Selec) )e

(e*li(e )e>) a( p*ess CtrlU1)+ see p*+p+sals +7 )+ s+lve )is p*+le2. %is (c)i+(ali): is

calle uic& Fix.

F+* e>a2ple, ):pe my&oolean ' true;I my&ooleanis (+) :e) e?(e, Eclipse 7ill i/li/) i) as

a( e**+*. Selec) )e va*iale a( p*ess CtrlU1. Eclipse 7ill s//es) c*ea)i(/ a ?el +* l+cal

va*iale.


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Eclipse Java IDE


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Eclipse Java IDE

uic& Fixis e>)*e2el: p+7e*l. F+* e>a2ple, i) all+7s :+ )+ c*ea)e (e7 l+cal va*iales a( ?els

as 7ell as (e7 2e)+s a( (e7 classes. $* i) ca( p) )*:Mca)c s)a)e2e()s a*+( :+*

e>cep)i+(s. I) ca( als+ assi/( a s)a)e2e() )+ a va*iale a( 2c 2+*e.

uic& Fixals+ /ives seve*al +p)i+(s +* c+e ca(/es +( c+e 7ic +es (+) c+()ai( e**+*s, e./.,

i) all+7s :+ )+ c+(ve*) a l+cal va*iale )+ a ?el.

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Eclipse Java IDE

1. Ge(e*a)i(/ c+e

Eclipse as seve*al p+ssiili)ies )+ /e(e*a)e c+e +* :+. %is ca( save si/(i?ca() )i2e *i(/

evel+p2e().F+* e>a2ple, Eclipse ca( +ve**ie 2e)+s *+2 spe*classes a( /e(e*a)e)e )+S)*i(/4, asc+e4 a( e@als42e)+s. I) ca( als+ /e(e*a)e /e))e* a( se))e* 2e)+s +*

a))*i)es + :+* Java class.

+ ca( ?( )ese +p)i+(s i( )e S+*ce 2e(.


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Eclipse Java IDE

%+ )es) )e s+*ce /e(e*a)i+(, c*ea)e )e +ll+7i(/ class i( :+* e.v+/ella.eclipse.ie.?*s) p*+=ec).


public class erson {

private String first)ame;

private String last)ame;

%

Selec) .ourceQ )enerate 1onstructor using Fields!!!, 2a*6 +) ?els a( clic6 )e 'K))+(.

Selec) .ourceQ )enerate )etter and .etter, a/ai( selec) +) + :+* ?els a( )e( clic6)e 'K))+(.

Selec) .ourceQ )enerate to.tring58!!!, 2a*6 a/ai( +) ?els a( clic6 )e 'K))+(.

50


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Eclipse Java IDE

%e ?(al +)p) 7ill e'


public class erson {

private String first)ame;

private String last)ame;

public erson(String first)ame* String last)ame {

super(;

t+is.first)ame ' first)ame;

t+is.last)ame ' last)ame;

%

public String getFirst)ame( {

return first)ame;

%

public void setFirst)ame(String first)ame {

t+is.first)ame ' first)ame; %

public String get,ast)ame( {

return last)ame;

%

public void set,ast)ame(String last)ame {

t+is.last)ame ' last)ame;

%

-verride

public String toString( {

return !erson [first)ame'! / first)ame / !* last)ame'! / last)ame / !]!;

%

%

51


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Eclipse Java IDE

;0. E>e*cise' c+e /e(e*a)i+( a( c+()e() assis)s

;0.1. I()*+c)i+(

I( )is e>e*cise :+ p*ac)ice )e sa/e + c+e /e(e*a)i+( a( )e sa/e + )e 1ontent

*ssists(c)i+(ali):.

;0.;. 9*ea)e p*+=ec)

9*ea)e a p*+=ec) calle c+2.v+/ella.ie.)++.

;0.3. 9*ea)e class

9*ea)e )e c+2.v+/ella.ie.)++ pac6a/e a( )e +ll+7i(/ class.

package com.vogella.ide.todo;

import 0ava.util.1ate;

public class 2odo {

private long id;

private String summary ' !!;

private String description ' !!;

private boolean done ' false;

private 1ate due1ate;

%

Selec) .ourceQ )enerate 1onstructor using Fields!!!)+ /e(e*a)e a c+(s)*c)+* si(/ all ?els.

"se )e .ourceQ )enerate )etter and .etter)+ c*ea)e /e))e*s a( se))e*s +* all ?els.

%e *esl)i(/ class s+l l++6 li6e )e +ll+7i(/ lis)i(/.



public class 2odo {

private long id;

private String summary ' !!;

private String description ' !!;

private boolean done ' false;

private 1ate due1ate;

public 2odo(long id* String summary* String description* boolean done*

1ate due1ate {

t+is.id ' id;

5;


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Eclipse Java IDE

t+is.summary ' summary;

t+is.description ' description;

t+is.done ' done;

t+is.due1ate ' due1ate;

%

public long get3d( {return id;

%

public void set3d(long id {

t+is.id ' id;

%

public String getSummary( {

return summary;

%

public void setSummary(String summary {

t+is.summary ' summary;

%

public String get1escription( {

return description;

%

public void set1escription(String description {

t+is.description ' description;

%

public boolean is1one( {

return done; %

public void set1one(boolean done {

t+is.done ' done;

%

public 1ate get1ue1ate( {

return due1ate;

%

public void set1ue1ate(1ate due1ate {

t+is.due1ate ' due1ate;

%

%

"se Eclipse )+ /e(e*a)e a )+S)*i(/4 2e)+ +* )e %++ class ase +( )e ida( su((ar3?el.

%is ca( e +(e via )e Eclipse 2e( .ourceQ )enerate to.tring58!!!. Als+ se Eclipse )+

/e(e*a)e a as9+e4 a( e@als4 2e)+ ase +( )e id?el. %is ca( e +(e via )e Eclipse

2e(.ourceQ )enerate ,as,1ode58 and e>uals58!!!.

53


63/115

Eclipse Java IDE

;0.. 9*ea)e i(s)a(ces

9*ea)e a (e7 class calle %++!*+vie*. 9*ea)e )e +ll+7i(/ s)a)ic 2e)+ i(

:+* %++!*+vie* class.


import 0ava.util.4rray,ist;


import 0ava.util.,ist;

public class 2odorovider {

private static int current ' 5;

66 e7ample data* c+ange if you like

public static ,ist82odo9 create3nitialModel( {

4rray,ist82odo9 list ' ne: 4rray,ist82odo9(;

list.add(create2odo(!S2!* !,earn idgets!;

list.add(create2odo(!i!* !Services!;

list.add(create2odo(!Compatibility ,ayer!* !?un #clipse @.7!;

return list;

%

private static 2odo create2odo(String summary* String description {

return ne: 2odo(current//* summary* description* false* ne: 1ate(;

%

%

;0.5.


64/115

Eclipse Java IDE

;0.. E>a2ple i2ple2e()a)i+( + %++!*+vie*%es)

e*cise 7as a+) c+e /e(e*a)i+( a( c+()e() assis), :+ 2i/) e i()e*es)e i( a

p+)e()ial s+l)i+( +* )is e>e*cise. %e +ll+7i(/ lis)i(/ c+()ai(s a p+)e()ial s+l)i+(.


import 0ava.util.,ist;

public class 2odorovider2est {


,ist82odo9 model ' 2odorovider.create3nitialModel(;

if (model.siAe($'B{

t+ro: ne: ?untime#7ception(!siAe s+ould be B!;

% else {

System.out.println(!Correct!;

%

%

%

;1. Reac)+*i(/

;1.1. Reac)+*i(/

Refactoringis )e p*+cess + *es)*c)*i(/ )e c+e 7i)+) ca(/i(/ i)s eavi+*. F+* e>a2ple,

*e(a2i(/ a Java class +* 2e)+ is a *eac)+*i(/ ac)ivi):.

;1.;. Reac)+*i(/ i( Eclipse

Eclipse spp+*)s seve*al *eac)+*i(/ ac)ivi)ies, +* e>a2ple, *e(a2i(/ +* 2+vi(/.

F+* e>a2ple, )+ se )e Rena(e*eac)+*i(/, :+ ca( *i/)-clic6 +( :+* class 4i( )e ei)+* +*

!ac6a/e E>pl+*e* a( selec)RefactorQ Rena(e)+ *e(a2e :+* class. Eclipse 7ill 2a6e s*e )a)all calls i( :+* ) 2e( is ac)iva)e via a *i/)-clic6 +( )e class.

55


65/115

Eclipse Java IDE

%e 2+s) i2p+*)a() *eac)+*i(/ a*e lis)e i( )e +ll+7i(/ )ale.

2eactoring DescriptionRe(a2e Re(a2e a va*iale +* classE>)*ac) e)+ 9*ea)es a 2e)+ ase +( )e selec)e c+e i( )e ei)+*E>)*ac)

9+(s)a()

Gives 2a/ic (2e*s +* a*-c+e s)*i(/s a esc*ip)ive c+(s)a() (a2e a(

*eplaces all +cc**e(ces.

,able 1 2eactoring

,ip

L+)s + *eac)+*i(/ a*e als+ availale via )e CtrlU1s+*)c) 4>uic& 2x.

Selec) a ce*)ai( pa*) + :+* c+e a( p*ess CtrlU1)+ see p+ssile

*eac)+*i(/ +* )e selec)e p+si)i+(.

5


66/115

Eclipse Java IDE

Eclipse as 2a(: 2+*e *eac)+*i(/. %e availale +p)i+(s epe( +( )e selec)i+( i( )e Java

ei)+*. I( 2+s) cases :+ s+l /e) a( iea + )e pe*+*2e ac)i+( : )e (a2i(/ + )e

*eac)+*i(/ +pe*a)i+(.

;;. E>e*cise' Reac)+*i(/

;;.1. !*epa*a)i+(

F+* )e (e>) e>a2ples ca(/e )e :Fi*s)9lass class )+ )e +ll+7i(/ c+e'



public static void main(String[] args {System.out.println(!"ello #clipse$!;

int sum ' 5;

for (int i ' ; i 8' 55; i// {

sum /' i;

%

System.out.println(sum;

%

%

;;.;. E>)*ac) 2e)+

A sel *eac)+*i(/ is )+ 2a*6 c+e a( c*ea)e a 2e)+ *+2 )e selec)e c+e. %+ se )is i(

)is e>e*cise, 2a*6 )e c+i(/ + )e +* l++p, *i/) clic6 +( )e selec)i+( a(

selec) Refactoring Q Extract ?et,od. "se calculateSumas )e (a2e + )e (e7 2e)+.

A)e* )is *eac)+*i(/ )e class s+l l++6 li6e )e +ll+7i(/ c+e'

5


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Eclipse Java IDE




System.out.println(!"ello #clipse$!;

int sum ' 5;sum ' calculateSum(sum;


%

private static int calculateSum(int sum {

for (int i ' ; i 8' 55; i// {

sum /' i;

%

return sum;

%

%

;;.3. E>)*ac) 9+(s)a()

+ ca( als+ e>)*ac) s)*i(/s a( c*ea)e c+(s)a()s ase +( )e s)*i(/s. a*6 +* )is e>a2ple

)e Hell+ Eclipse s)*i(/ i( :+* s+*ce c+e, *i/)-clic6 +( i) a( selec) RefactorQ Extract

1onstant. Na2e :+* (e7 c+(s)a() HELL$.

%e s)*i(/ is (+7 e?(e as a c+(s)a().

5C


68/115

Eclipse Java IDE



private static final String "#,, ' !"ello #clipse$!;


System.out.println("#,,;int sum ' 5;

sum ' calculateSum(sum;


%


for (int i ' ; i 8' 55; i// {

sum /' i;

%

return sum;

%

%

;3. Eclipse S+*)c)s

Eclipse p*+vies a l+) + s+*)c)s )+ 7+*6 ecie()l: 7i) )e IDE. F+* a lis) + )e 2+s) i2p+*)a()

Eclipse s+*)c)s please seeEclipse S&ortcutsa)'

))p'MM777.v+/ella.c+2M))+*ialsMEclipseS+*)c)sMa*)icle.)2l

5


69/115

Eclipse Java IDE

;. "si(/ p*+=ec) epe(e(cies

+ ca( e?(e i( Eclipse )a) a p*+=ec) is epe(e() +( a(+)e* p*+=ec). %+ + )is selec) :+*

p*+=ec), *i/)-clic6 +( i) a( selec)Properties. Selec)Java uild Pat,a( )e Pro0ects)a.

I :+ a a p*+=ec) )+ )e il pa) + a(+)e* p*+=ec), :+ ca( se i)s classes i( Eclipse. %is

+(l: 7+*6s 7i)i( EclipseP +)sie + i) :+ (ee )+ c*ea)e Java li*a*ies +* )e p*+=ec)s a( a

)e2 )+ )e classpa) + :+* Java applica)i+(.

0


70/115

Eclipse Java IDE

;5. "si(/ JARs 4li*a*ies i( Eclipse

;5.1. Ai(/ a Java li*a*: )+ )e p*+=ec) classpa)

I )e li*a*ies s+l e is)*i)e 7i) :+* p*+=ec), :+ ca( s)+*e )e JAR ?les i*ec)l: i( :+*

p*+=ec).

F+* e>a2ple, :+ ca( c*ea)e a (e7 Java p*+=ec) e.v+/ella.eclipse.ie.=a*s. %e( c*ea)e a (e7

+le* calle li : *i/)-clic6i(/ +( :+* p*+=ec) a( selec)i(/ /e$Q Folder.

F*+2 )e 2e( selec) FileQ I(portQ )eneralQ File .3ste(. Selec) )e Java li*a*: :+ 7a() )+

i2p+*) a( selec) )e lib+le* as )a*/e). Al)e*(a)ivel:, =s) c+p: a( pas)e )e =a* ?le i()+

)e lib+le*.

+ ca( a )is li*a*: )+ :+* classpa), *i/)-clic6 +( )e JAR ?le a( selec) uild Pat,Q*dd to

uild Pat,.

%+ 2a(a/e :+* classpa), *i/)-clic6 +( :+* p*+=ec) a( selec) Properties. "(e*Java uild

Pat,Q Librariesselec) )e*dd J*Rs))+(.

%e +ll+7i(/ e>a2ple s+7s +7 )e *esl) 7+l l++6 li6e i )e0unit-4!4!0ar?le a ee( ae

)+ )e p*+=ec).

1


71/115

Eclipse Java IDE

A)e* ai(/ i) )+ )e classpa), Eclipse all+7s :+ )+ se )e classes c+()ai(e i( )e JAR ?le i(

)e p*+=ec). $)sie Eclipse :+ s)ill (ee )+ c+(?/*e :+* classpa), e./., via

)e ?*/IFE.+!?F?le.

;5.;. A))ac s+*ce c+e )+ a Java li*a*:

+ ca( +pe( a(: class : p+si)i+(i(/ )e c*s+* +( )e class i( a( ei)+* a( p*essi(/ +3.

Al)e*(a)ivel:, :+ ca( p*essCtrlUS&itU,. %is 7ill s+7 a ial+/ i( 7ic :+ ca( e()e* )e class(a2e )+ +pe( i).

I )e s+*ce c+e is (+) availale, )e ei)+* 7ill s+7 )e :)ec+e + )a) class.

%is appe(s, +* e>a2ple, i :+ +pe( a class *+2 )e s)a(a* Java li*a*: 7i)+) a))aci(/ )e

s+*ce c+e )+ i).

%+ see )e s+*ce c+e + sc a class, :+ ca( a))ac a s+*ce a*cive +* s+*ce +le* )+ a Java

li*a*:. A)e*7a*s, )e ei)+* s+7s )e s+*ce i(s)ea + )e :)ec+e.

A))aci(/ )e s+*ce c+e )+ a li*a*: als+ all+7s :+ )+ e/ )is s+*ce c+e.

;


72/115

Eclipse Java IDE

%e .ource *ttac,(ential+/ ca( e *eace i( )eJava uild Pat,pa/e + a p*+=ec). %+ +pe( )is

pa/e, *i/)-clic6 +( a p*+=ec) a( selec) PropertiesQJava uild Pat,. $( )e Libraries)a, e>pa(

)e li*a*:Ws (+e, selec) )e .ource *ttac,(enta))*i)e a( clic6 )e Edit))+(.I( )e L+ca)i+(

pa) ?el, e()e* )e pa) + a( a*cive +* a +le* c+()ai(i(/ )e s+*ce.

%e +ll+7i(/ sc*ee(s+) s+7s )is se))i(/ +* )e s)a(a* Java li*a*:. I :+ ave )e Java

Devel+p2e() #i) 4JD# i(s)alle, :+ s+l ?( )e s+*ce i( )e JD# i(s)alla)i+( +le*. %e ?le is):picall: calle src!"ip.

;5.3. A Java+c +* a JAR

I) is als+ p+ssile )+ a Java+c )+ a li*a*: 7ic :+ se. D+7(l+a )e Java+c + )e JAR ?le

a( p) i) s+2e7e*e i( :+* ?les:s)e2.

%+ e()e* )e l+ca)i+( + )e Java+c, +pe( )eJava uild Pat,via a *i/)-clic6 +( a p*+=ec) a(

selec) PropertiesQJava uild Pat,. $( )e Libraries)a e>pa( )e li*a*:Ws (+e, selec)

)eJavadoc locationa))*i)e a( p*ess )e Edit))+(.

E()e* )e l+ca)i+( )+ )e ?le 7ic c+()ai(s )e Java+c.

3


73/115

Eclipse Java IDE

;. "pa)es a( i(s)alla)i+( + pl/-i(s

;.1. Eclipse pa)e 2a(a/e*

%e Eclipse IDE c+()ai(s a s+)7a*e c+2p+(e() calle ;pdate ?anager7ic all+7s :+ )+ i(s)all

a( pa)e s+)7a*e c+2p+(e()s. I(s)allale s+)7a*e c+2p+(e()s a*e calle ea)*es a( c+(sis)

+ pl/-i(s.

%ese ea)*es a*e c+()ai(e i( s+-calle update sites+* soft$are sites. A( update sitec+()ai(s

i(s)allale s+)7a*e c+2p+(e()s a( ai)i+(al c+(?/*a)i+( ?les. I) ca( e l+ca)e i( va*i+s

places, e./., +( a 7e se*ve* +* +( )e l+cal ?les:s)e2.

%e c+(?/*a)i+( ?les p*+vie a//*e/a)e i(+*2a)i+( a+) )e s+)7a*e c+2p+(e()s i(

)e update site. %e pa)e (c)i+(ali): i( Eclipse ses )is i(+*2a)i+( )+ e)e*2i(e 7ic

s+)7a*e c+2p+(e()s a*e availale i( 7ic ve*si+(. %is all+7s )e Eclipse pa)e (c)i+(ali): )+

+7(l+a +(l: c+2p+(e()s 7ic a*e (e7 +* pa)e.


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Eclipse Java IDE

;.;. !e*+*2i(/ a( pa)e a( i(s)all (e7 ea)*es

Warning

I :+ a*e ei( a (e)7+*6 p*+>:, :+ ave )+ c+(?/*e :+* p*+>: via)e #indo$Q PreferencesQ)eneralQ /et$or& 1onnectionp*ee*e(ce

se))i(/. $)e*7ise, Eclipse 2a: (+) ale )+ *eac )e pa)e si)es.

%+ pa)e :+* Eclipse i(s)alla)i+(, selec) =elpQ 1,ec& for ;pdates. %e s:s)e2 sea*ces +*

pa)es + )e al*ea: i(s)alle s+)7a*e c+2p+(e()s. I i) ?(s pa)e c+2p+(e()s, i) 7ill as6

:+ )+ app*+ve )e pa)e.

%+ i(s)all a (e7 (c)i+(ali):, selec) =elpQ Install /e$ .oft$are!!!.

F*+2 )e #or& $it,lis), selec) +* e()e* a( "RL *+2 7ic :+ 7+l li6e )+ i(s)all (e7 s+)7a*ec+2p+(e()s. E()e*i(/ a (e7 "RL as )is "RL a)+2a)icall: )+ )e lis) + availale pa)e si)es.

5


75/115

Eclipse Java IDE

%+ e>plici)l: a a (e7 pa)e si)e, p*ess )e*dd!!!))+( a( e()e* )e (e7 "RL as 7ell as a

(a2e +* )e (e7 pa)e si)e.

%e +ll+7i(/ pa)e si)es c+()ai( )e +cial Eclipse c+2p+(e()s'

Eclipse .3 4#eple* *elease - ))p'@@do$nload!eclipse!org@releases@&epler

Eclipse .; 4J(+ *elease - ))p'@@do$nload!eclipse!org@releases@0uno

I :+ selec) a vali pa)e si)e, Eclipse all+7s :+ )+ i(s)all )e availale c+2p+(e()s. 9ec6 )e

c+2p+(e()s 7ic :+ 7a() )+ i(s)all.

I :+ ca(W) ?( a ce*)ai( c+2p+(e(), (cec6 )e )roup ite(s b3 categor3 cec6+> ecase (+)

all availale pl/-i(s a*e ca)e/+*i8e. I )e: a*e (+) ca)e/+*i8e, )e: 7ill (+) e ispla:e, (less

)e /*+pi(/ is isale.

;.3. See )e i(s)alle c+2p+(e()s


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Eclipse Java IDE

%+ see 7ic c+2p+(e()s a*e i(s)alle, se =elpQ*bout Eclipse .DKQ Installation Details.

;.. "(i(s)alli(/ c+2p+(e()s

I :+ selec) =elpQ*bout Eclipse .DKa( )e( )e Installation Details))+(, :+ ca( (i(s)all

c+2p+(e()s *+2 :+* Eclipse IDE.

;.5. Res)a*)i(/ Eclipse

A)e* a( pa)e +* a( i(s)alla)i+( + a (e7 s+)7a*e c+2p+(e(), :+ s+l *es)a*) Eclipse )+ 2a6e

s*e )a) )e ca(/es a*e applie.

;. Eclipse a*6e)place


77/115

Eclipse Java IDE

Eclipse als+ c+()ai(s a clie() 7ic all+7s i(s)alli(/ s+)7a*e c+2p+(e()s *+2 )e

Eclipse ?ar&etplace client. %e ava()a/e + )is clie() is )a) :+ ca( sea*c +* c+2p+(e()s,

isc+ve* p+pla* e>)e(si+(s a( see esc*ip)i+(s a( *a)i(/s.

9+2pa*e )+ )e pa)e 2a(a/e*, :+ + (+) ave )+ 6(+7 )e "RL +* )e soft$are site7ic

c+()ai(s )e i(s)allale s+)7a*e c+2p+(e()s.

N+) all Eclipse is)*i)i+(s c+()ai( )e ?ar&etplace client: eal). + 2a: (ee )+ i(s)all)e ?ar&etplace clients+)7a*e c+2p+(e() i()+ Eclipse e+*e :+ ca( se i). %e +ll+7i(/

sc*ee(s+) s+7s +7 )+ i(s)all i) *+2 +(e + )e +cial Eclipse pa)e si)es.

%+ +pe( )e Eclipse a*6e)place, selec) =elpQ Eclipse ?ar&etplace.

C


78/115

Eclipse Java IDE


79/115

Eclipse Java IDE

+ ca( se )e Find+> )+ sea*c +* c+2p+(e()s. !*essi(/ )e Install))+( s)a*)s )ei(s)alla)i+( p*+cess.

0


80/115

Eclipse Java IDE

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;C.1. a(al i(s)alla)i+( + pl/-i(s 4*+pi(s +le*

Eclipse pl/-i(s a*e is)*i)e as0ar?les. I :+ 7a() )+ se a( Eclipse pl/-i( i*ec)l: +* + (+)

6(+7 )e update site +* i), :+ ca( place i) i( )e dropins+le* + :+* Eclipse i(s)alla)i+(

i*ec)+*:. Eclipse 2+(i)+*s )is i*ec)+*: a( *i(/ a 4*e-s)a*) + :+* IDE, )e Eclipse pa)e

2a(a/e* i(s)alls a( *e2+ves pl/-i( ase +( )e ?les c+()ai(e i( )is i*ec)+*:.

+ s+l (+) 2+i: )e c+()e() + )e Eclipsepluginsi*ec)+*: i*ec)l:. I :+ 7a() )+ i(s)all

pl/-i(s, p) )e2 i()+ )edropins+le*. I :+ 7a() )+ *e2+ve i), ele)e )e JAR *+2 )is +le*.

!l/-i(s a*e ):picall: is)*i)e as0ar?les. %+ a a pl/-i( )+ :+* Eclipse i(s)alla)i+(, p) )epl/-i( .=a* ?le i()+ )e Eclipsedropins+le* a( *es)a*) Eclipse. Eclipse s+l e)ec) )e (e7

pl/-i( a( i(s)all i) +* :+.

I :+ *e2+ve pl/-i(s *+2 )e dropins+le* a( *es)a*) Eclipse, )ese pl/-i(s a*e a)+2a)icall:

*e2+ve *+2 :+* Eclipse i(s)alla)i+(.

;C.;. E>p+*)i(/ a( i2p+*)i(/ )e i(s)alle c+2p+(e()s

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