Java : Best way to pass int by reference

java pass-by-reference
fred basset picture fred basset · Jul 24, 2010 · Viewed 87.3k times · Source

I have a parsing function that parses an encoded length from a byte buffer, it returns the parsed length as an int, and takes an index into the buffer as an integer arg. I want the function to update the index according to what it's parsed, i.e. want to pass that index by reference. In C I'd just pass an int *. What's the cleanest way to do this in Java? I'm currently looking at passing the index arg. as an int[], but it's a bit ugly.

Answer

doublep picture doublep · Jul 24, 2010

You can try using org.apache.commons.lang.mutable.MutableInt from Apache Commons library. There is no direct way of doing this in the language itself.

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