plweb 認證平台應用實務(修平)

8/8/2019 PLWeb ( )

http://slidepdf.com/reader/full/plweb- 1/81

Java@plweb

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2010/10/20ü

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??? Bill II ?

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Just for fun.

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Linus Torvalds Linux

h ttp://lwpca.net/

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PCM an

PCMan BBS 2001

BBS BBS

h ttp://pcman.openfoundry.org/

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M ark Zuckerberg Facebook

h ttp://www.officesnaps h ots.com/2009/08/13/t h e-new-facebook-office/

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R ule maker; rule broker

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w ith great po w er there must also

come great responsibility

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99

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y Ôy / / /

/ y E-m ail tungsh@y untec h. edu .twy

http: // www.m is.y untec h. edu .tw/~ tungsh /tungsh.h tm l

8/8/2019 PLWeb ( )


W elcome to Java w orld«

h ttp://duke.kenai.com/

16 years old

Fat, not fast

Danger

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The Big Issue

h ttp://duke.kenai.com/

200 9/ 04 Or a cle buys S un2010 /04 Go sling left S un /Or a cle2010 /09 SCJP OCP, Java

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M ore Duke«

h ttp://duke.kenai.com/h ttp://duke.kenai.com/

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Java?

h ttp://www.tiobe.com/

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Java?

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Glass f ish, JB oss, We bS phe r e , We bLo gic, «y JavaFX, GWT, S tr uts, E JB, S pr ing Fr a m ew ork , ZK, «

y JDBC, JPA, Hibe r na te , «

y E clips e , Net Be ans, Inte lliJ, «y Nutc h, Luce ne , Ha doo p, «

8/8/2019 PLWeb ( )


1994 ~ 20 1 0

Ja m e s Go slingy 199 4 ± Java a ppe a r ed

Br uce Ta te say «y Bette r , Fas te r , Ligh te r Java (2004)y Be yond Java (2005)

Java

Java ?!h ttp://nig h th acks.com/roller/jag/

8/8/2019 PLWeb ( )


Java «

S cr ipt ing (JSR 223)

y AWK, Clojur e , Groo vy, Jas ke ll(Has ke ll),

JavaS cr ipt , J E P, J ud oS cr ipt , Pn uts, Jy thon(Py thon), JR uby(Ruby),

Que r cu s (P HP ), S ISC (S che m e ), Sleep , Tcl

Ann ota tion@ We bS e r vice , @ We bS e r vlet , «

h ttps://scripting.dev.java.net/

8/8/2019 PLWeb ( )


Java «

Java + S cr ipt ing = J us t Sim ple

Groo vy, S cala, Jy thon, JR uby

« Java

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Java?Java java or groo vy or s cala or jython or jr uby

.NET c# or vb or vb.n et or f# or c++.n et or js cr ipt

Linux php or pe r l or python or r uby

h ttp://www.indeed.com/

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ü «

«

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Java «

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Java «

public class HelloForLoop {public static main(String argv[]) {

for (int i = 0; I < 10; i++) {System.out.println( i = + i);}

}}

8/8/2019 PLWeb ( )


Java «

FOR«

y pu blic class s ta tic«y å m ain «y int Inte ge r «y Sys te m .out .pr intlnt«

Java«

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Teach less, learn more«

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«

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R TFM google it

site:oracle.com jdk api system

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R TFM google it

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G oogle^ .*\.java$ wretc h album

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OVE R ?!Java Ho w to P rogr a m , 7 /eThis new ed ition include s all of the cor e ped ag ogic m a te r ial f rom Java How to Program,6/e upd a ted to the f or thcom ing Java S tan dar d E dition 6 ( Java S E 6; code na m ed "Mus tang "). Ch ec k o ut the com plete Table of Contents . Her e' s s om e of the book 's key fea tur es :

U pd ated the entir e book to the new Java S tan da r d E dition 6 ("Mus tang ").

Atte ntion to k ey s oftwar e engin ee r ing comm unity concept s, s uc h as We b2.0 , S O A, we b

s e r vice s , ope n s our ce s oftwar e ,

de sign pa tte r ns ,

m ash up s, r ef a ctor ing an d m any m or e .

Ca r efu lly coor dina ted with our new Java, W eb 2 .0, A jax , an d P rogr amm ing P roject s Res our ce Cente r s .New A jax-ena b led , eve nt-dr ive n we b app lic a tions de ve lopm e nt with

JavaS e r ve r Fa ce sThe s er vlet s an d JSP cha pte r s hav e bee n dropped in f avor o f the new JavaS e r ver Fa ce s (JSF ) tr ea tm e nt.New tools -bas ed app roa ch f or web app lic a tions de ve lopm e nt.New we b s er vice s cha pte r .

New S wing Work e r c lass f or m ultithr e a ded us er inte r f ace s.

New Java de s ktop inte gr a tion (JD IC) fea tur es, s uc h as s plash s c r ee ns an d inte r act ions with the sys te m tr ay.

New Gro up Lay out layout m anag e r .

New

JDBC cha pte r introduce s JDBC 4 an d

us e s the MyS QL an d Java DB da tabas e s .

New J Ta ble s or ting an d f ilte r ing capa bilitie s.

New Java 2D gr a die nt ca pa bilitie s.

S trong tr e a tm e nt of ge ner ics an d gene r ic collect ions.

New app lica tion using Goo gle Ma ps we b s e r vice s .

Java Bluep r ints tec hn ology.New S tr ingB uilde r class.

New Re s our ce Ce nte r s f or E clips e ,

Net Be ans , Java S tud ioCr e a tor 2 , JB u ilde r an d othe r popu lar e nvironm e nts.New cove r ag e of ann ota tions, an d m uc h m or e .

And all the key fea tur e s f rom Java How to Program, 6/e , includ ingCa r efu lly de ve loped obj ect -or iented progr a mm ing pr e s e nta tion fea tur ing an e a r ly class e s an d obj ect s ped ag ogy.E xte nsiv e obj ect -or ie nted p rogr a mm ing cas e s tud ie s.Optional 10 -s ect ion OO D/U ML 2 Autom a ted Te lle r Machine ( ATM)cas e s tud y, includ ing com plete code im ple m enta tion.Optional gr a phics an d GU I cas e s tud y tr a ck.Multitie r , da ta bas e -dr ive n we b a pp lica tion de ve lop m ent.And m uc h m or e .

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P LW eb «

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P LW eb«

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P LW eb %ü «

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8/8/2019 PLWeb ( )


P LW eb«

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8/8/2019 PLWeb ( )


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P LW eb

Windows 2000 / XP / Vista / 7

Java SD K 6y upd a te 21 ( )

Mode r n bro ws e r s

y Moz illa Fir ef ox 3.6y Goo gle Ch rom e 6.0y Inte r net E xplor e r 8 .0

8/8/2019 PLWeb ( )


Java@pl w eb %ü

http: // java. plwe b.or g /

8/8/2019 PLWeb ( )


P LW eb TQC+ Java «

Javay

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http: // wiki.plwe b.or g /Java

8/8/2019 PLWeb ( )


P LW eb TQC+ Java «

Javay

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http: // wiki.plwe b.or g /Java

8/8/2019 PLWeb ( )


P LW eb TQC+ Java

%üy %üy

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TQ C+ Java 6 (17)y TQ C+ Java

TQ C+ Java 6 %ü (27)y TQ C+ Java 6 (17) %ü

8/8/2019 PLWeb ( )


P LW eb

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h ttp://wiki.plweb.org/PLWeb-Java-Examples

8/8/2019 PLWeb ( )


1 class Market{2 static int sEgg = 5, sFruit = 20;3 static int getMoney(int nEgg, int nFruit) {4 return sEgg * nEgg + sFruit * nFruit;5 }6 int getMoney() {

7 return sEgg + sFruit;8 }9 }

2

6

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public class Good {public static main (String args[]) {

System.out.println(I love Java!);System.out.println("Java is so good ")

}}

BUG

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public class AndToIf {public static void main(String args[]) {System.out.println(andToIf(true, true));System.out.println(andToIf(true, false));System.out.println(andToIf(false, true));System.out.println(andToIf(false, false));

}

static boolean andToIf(boolean b1, boolean b2) {if (b1)

____________;

else return _____;}

} if boo le an b1 , b2 boo le anboo le an (b1 && b2)

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nn 999

import java.util.Scanner;public class Factorial {

static Scanner keyboard = new Scanner(System.in);public static void main(String args[]) {

int num1;System.out.print("Input n: ");num1 = keyboard.nextInt();while (num1 != 999) {

System.out.printf("%d = %d\n", num1, fac(num1));System.out.print("Input n: ");num1 = keyboard.nextInt();

}}

static int fac(int n) {if(n == 0) {

return 1;} else {

return (n * fac(n - 1));}

}}

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P LW eb

1 + 1 = 22 * 2 = 4

1 + 1 = 22 * 2 = 5

^

8/8/2019 PLWeb ( )


«

Javay TQ C+ Java OCP, Java (SCJP ) «

8/8/2019 PLWeb ( )


JDK

JD K = Java SD K6.0 upd a te 21

JAV A_ HO ME

CL ASSPA TH

http: // he lp.plwe b.or g /ins talla tion: jdk

8/8/2019 PLWeb ( )


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P LW eb

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P LW eb

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P LW eb

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8/8/2019 PLWeb ( )


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P LW eb

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P LW eb

DE MO

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C ontinue «

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P LW eb in the future

We b 2 .0 AP I (e m bedded P LWe b analy tics da ta s our ce )

â (s ocial netw ork ing )ü (e -P or tf olio)

Cloud

Mor e «

W h G i h i

8/8/2019 PLWeb ( )


W hy G roovy is much easier

// print 1 to 100

100.times {println it+1}

(1..100).each {println it}

for (i in 1..100) {println i}

1.upto(100) {println it}

1.step(101, 1) {println it}

W h G i h i

8/8/2019 PLWeb ( )



// print 1 to 100

100.times {println it+1}

(1..100).each {println it}

for (i in 1..100) {println i}

1.upto(100) {println it}

1.step(101, 1) {println it}


8/8/2019 PLWeb ( )



//(1..9).each { x->

(1..9).each { y->

println "${x} * ${y} = ${x*y}"}

}


8/8/2019 PLWeb ( )


W hy G roovy is much easierimport org.mortbay.jetty.*import org.mortbay.jetty.servlet.*import groovy.servlet.*import java.io.*import javax.servlet.*import javax.servlet.http.*

@Grab(group = 'org.mortbay.jetty', module = 'jetty-embedded', version = '6.1.0')

class HelloServlet extends HttpServlet {void service(HttpServletRequest req, HttpServletResponse resp) {

resp.writer.println("""<html><body><h1>Hello! World!< / h1>It's real servlet!< / body></ html>""");

}}

def runServer(duration) {def server = new Server(8080)

def context = new Context(server, " / ", Context.SESSIONS);context.resourceBase = "."context.addServlet(HelloServlet, " / ")server.start()sleep durationserver.stop()

}

runServer(10000)

Get jetty-embedded-6.1.0.jar

a utom a tically.

Im ple m e nt Hello S ervlet he r e .

8/8/2019 PLWeb ( )


W h G i h i

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W hy G roovy is much easierclass HelloSpock extends spock.lang.Specification {

def " "() {expect:name.size() == length

where:name | length"Spock" | 5"Kirk" | 4"Scotty" | 10

}}

HelloSpock- FAILED

Condition not satisfied:name.size() == length| | | || 6 | 10

Scotty false

8/8/2019 PLWeb ( )


G roovy JAVA

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G roovy -Java

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W rite Test C ase in groovy

= new (' ')= new (' ')

..

.

. ()

. ()

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G roovy -Javaclass {

def = ' '

def = 1000def = 100def = 100def = 50

def ( ) {=

+ ' '

}def ( ) {

. + ' '. -=

}def () {

+ ' ' + }def ( ) {

println}

}

(Constructor)

(Class Met h ods)

8/8/2019 PLWeb ( )


G roovy -Javaclass {

def = ' 'def = 1000def = 100def = 100def = 50

def ( ) {

=+ ' '

}def ( ) {

. + ' '. -=

}def () {

+ ' ' +}def ( ) {

pr intln}

}

= new (' ')

= new (' ')

.

.

.

. ()

. ()

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R un G roovy online

http: // groo vycons ole .a pp s pot.com/

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The E nd

plweb 認證平台應用實務(修平)

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