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Added the official Oracle Java doc on "Equality" (#23820)

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cindy-tu
2018-11-27 18:11:22 -08:00
committed by Manish Giri
parent f00945fbcb
commit 5758e8db7a
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guide/english/java/equality/index.md
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@ -63,3 +63,6 @@ Most of the built-in classes in Java, as well as classes provided by popular lib
For example, the `java.util.Set` interface specifies that a `Set`'s `equals()` method will return true if "the specified object is also a set, the two sets have the same size, and every member of the specified set is contained in this set".
However, if a class does not override the default `equals()` implementation, the default implementation will apply, which simply uses the `==` operator to compare the two objects.
#### More Information:
- [Oracle Java Docs : Equality Operators](https://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls-15.21)