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equality - What's the difference between == and .equals in Scala?

What is the difference between == and .equals() in Scala, and when to use which?

Is the implementation same as in Java?

EDIT: The related question talks about specific cases of AnyVal. The more general case is Any.

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You normally use ==, it routes to equals, except that it treats nulls properly. Reference equality (rarely used) is eq.


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