#define in Java

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No, because there’s no precompiler. However, in your case you could achieve the same thing as follows:

class MyClass
{
    private static final int PROTEINS = 0;

    ...

    MyArray[] foo = new MyArray[PROTEINS];

}

The compiler will notice that PROTEINS can never, ever change and so will inline it, which is more or less what you want.

Note that the access modifier on the constant is unimportant here, so it could be public or protected instead of private, if you wanted to reuse the same constant across multiple classes.

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