Differences between subtypes and subclasses for all m: U → V in T, there is an m: U' → V' in S such that V' New wild card types in Java 1 5 also definable in
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[PDF] Lecture 12 Subtypes and Subclasses - Washington
Java subtypes that are not true subtypes are confusing and dangerous Subtyping vs subclassing Interfaces: subtyping without inheritance [see also section]
[PDF] Subtypes and Subclasses
The definition of subtyping depends on the definition of strong versus weak specifications In Java subclassing, Java subtyping, and true subtyping later )
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Why we like subclasses? True subtypes vs Java subtypes Inheritance vs Composition Substitution Principle Interfaces and Abstract Classes
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Subtyping and Inheritance in Java Prakash Panangaden November myInt is the superclass and that gaussInt is the subclass class gaussInt extends myInt {
[PDF] Objects, Subclassing, Subtyping, and Inheritance - McGill School Of
In Java we have that subclassing induces subtyping (see below) Comparing OO-style vs datatypes in functional programming Let us assume we want to write
[PDF] Thoughts on Subtypes versus Inheritance
Differences between subtypes and subclasses for all m: U → V in T, there is an m: U' → V' in S such that V' New wild card types in Java 1 5 also definable in
Inheritance-Based Subtyping - ScienceDirectcom
inheritance does not define any subtyping relation, whereas in languages such as JAVA and C++, inheri- Both C++ and JAVA have mechanisms that allow some classes and functions to have greater access priv- ileges to environment (V)
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Thus far we have assumed that only object types have subtypes, and that subtypes are q:V' } masquerading as an element of type { m:S; n:T; p:U } as a record of type Suppose C is a class with a subclass CSub, and suppose the method method- OfCSubOnly() Java's unsafe subtyping rule for arrays allows any array
[PDF] Concepts of Object-Oriented Programming
Inheritance versus Subtyping ▫ Subtyping Terminology: Subclassing = Subtyping + Inheritance Dynamic binding: Eiffel, Java, Scala, dynamically- typed
[PDF] Subtyping and Inheritance - Tuke
This is also called subclassing • In Java: class B extends A B is a subtype of A B inherits from A class C Inheritance vs composition: Example 1 Lecture #3:
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