You may have seen Groovy's now infamous "ArrayUtil.java" class, which contains 200+ variations on this theme:
public static Object[] createArray(Object arg0, Object arg1, Object arg2) { return new Object[]{ arg0, arg1, arg2}; }
The authors are clear that this is a generated class whose ugliness is performance driven, and that you would never want to do such a thing in your own source code.
How would you do this in your Java? One simple approach is to use varargs:
public class VarArgsPlay { public static void main(String[] args) { VarArgsPlay v = new VarArgsPlay(); System.out.println( v.returnArray("one","two").length ); } public Object[] returnArray(Object... obj){ return obj; } }
Javabeat has a thorough treatment of this easy-to-use language feature.
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