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Subtyping java

Deepika Sahu answered on December 29, 2022 Popularity 3/10 Helpfulness 1/10

answer Subtyping java

Subtyping java

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Subtyping is a key feature of object-oriented programming languages such as Java. I
n Java, Sis a subtype of T if S extends or implements T.
Subtyping is transitive, meaning that if R is a subtype of S, then R is also a subtype of T (T is the super type of both Sand R).
Here are some examples:
- Integer is a subtype of Number

- ArrayList<E> is a subtype of Collection<E>

- String is a subtype of Object

Popularity 3/10 Helpfulness 1/10 Language java

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Contributed on Dec 29 2022

Deepika Sahu

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