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I have a question about the object X.equals(Y).

I use Sonar and it says that I have to move the "" string literal on the left side of this string comparison: !date.equals("").

So I did that: !("").equals(date) but I don't really know if it is right or not.

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!"".equals(date) and !("").equals(date) and !(("")).equals(date) and !(((""))).equals(date) and !("".equals(date)) all return the same thing.

So you correctly switched the string literal with the variable, you just added some not needed parentheses.

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