Comparing Java enum members: == or equals() ?
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by Bears will eat you
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Published on 2009-11-17T17:26:27Z
Indexed on
2010/05/29
15:42 UTC
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I know that Java enums are compiled to classes with private constructors and a bunch of public static members. When comparing two members of a given enum, I've always used .equals()
, e.g.
public useEnums(SomeEnum a)
{
if(a.equals(SomeEnum.SOME_ENUM_VALUE))
{
...
}
...
}
However, I just came across come code that uses the equals operator ==
instead:
public useEnums2(SomeEnum a)
{
if(a == SomeEnum.SOME_ENUM_VALUE)
{
...
}
...
}
I've been programming in Java for 5+ years, and I thought I understood difference between the two - but I'm still scratching my head at which one is more correct. Which operator is the one I should be using?
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