Is there an equivalent to #IF and # CONST.NET in Java / Android?

Question

I have a project in which there are many codes available only in a certain version, and when I fix the error, I have to fix them in all copies. It is very uncomfortable.

Is there in Java #IFand #CONST, what if the sentence #IFis false, the code will not be compiled?

Answer 1

There is no “official” pre-processor for Java, and there is no third-party one that is widely used.

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 static final DEBUG = false;

 public void frobnicate() {
   if (DEBUG) {
     doExpensiveFrobnicationDebugOperation();
   }
   doActualFrobnication();
 }

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Answer 2

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