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1. design points - subclassing vs subtyping subclassing vs subtyping stéphane ducasse --- 2010 2. a little problem how to implement a stack? 3. stack subclass of orderedcollection…
subtyping & subclassing: a brief glimpse additional java tips nathaniel osgood cmpt 858 4-5-2011 recall: a key motivator for abstraction: risk of change • abstraction…
slide 1 cse 331 software design & implementation subtyping and subclassing autumn 2011 very quick 331 recap uw cse331 autumn 2011 2 procedural specification and implementations…
subtype polymorphism, subtyping vs. subclassing, liskov substitution principle fall 14 csci 2600, a milanova announcements hw5 out, due friday october 30th part 1: questions…
encapsulation, interfaces, subtyping & subclassing: a brief glimpse nathaniel osgood mit 15.879 may 9, 2012 recall: a key motivator for abstraction: risk of change •…
slide 1objective introduce covariance and contravariance subtyping/subclassing terminology covariance: ? extends contravariance: ? super no instance creation with ? 1. the
1. 创建 uitableviewcell 的⼦子类范圣刚,[email protected], www.tfan.org 2. • uitableview 显⽰示的是⼀一个 uitableviewcell 的列 表。对于⼤大多数应⽤用⽽而⾔言,带有…
1. ⼦子类化 uiview 和 uiscrollview范圣刚,[email protected],www.tfan.org…
powerpoint presentationevery class eventually inherits from object every class is an instance of a metaclass the metaclass hierarchy parallels the class hierarchy every metaclass
from small world to hierarchic business information networks by reorganizations â a real world study of a failure markus christen*, georges bongard+, attila pausitz°,…
8/8/2019 java fir stoop 1/381introduction to oo concepts anduml8/8/2019 java fir stoop 2/382overview introduction to classes and objects introduction to uml features of object…
1.s.ducasse 1 quicktime™ and atiff (uncompressed) decompressorare needed to see this picture. stéphane ducasse [email protected] http://www.listic.univ-savoie.fr/~ducasse/…
1. lsp stéphane ducasse --- 2005 2. 3. a step deeper in subtyping... 4. liskov substitution principle (lsp) if for each object o1 of type s there is another object o2…
1. elements of design - simple smells simple smells 2. basic design mistakes 3. a class should have class person { string getname();void setname(string name); int getage();void…
1. adapter 2. 3. adapter convert the interface of a class into another interface clients expect.adapter lets classes work together that couldn't otherwise because…
1. decorator 2. 3. decorator attach additional responsib ilities to an object dynamically.decorators provide aflexible alternative tosubclassing for extendingfunctionality.…
1. strategy 2. strategy define a family of algorithms,encapsulate each in a separateclass and define each class withthe same interface so that they canbe interchangeable.…
a request to its receiver by giving more than one object a chance to handle the request. chain the receiving objects and pass the request along the chain until an object
1. singleton 2. singleton’s intent ensure that a class has onlyone instance, and provide aglobal point of access to it 3. problem / solution problem : we want a class with…
1. visitor 2. intent : represent an operation to be performed on the elements of an object structure in a class separate from the elements themselves. visitor lets you define…