Overloading in Combination with Var-args : Boxing Unboxing « Utility Classes « SCJP

1. SCJP
2. Utility Classes
3. Boxing Unboxing

public class MainClass{
  static void wide_vararg(long... x)
              { System.out.println("long..."); }
  static void box_vararg(Integer... x)
              { System.out.println("Integer..."); }
  public static void main(String [] args) {
    int i = 5;
    wide_vararg(i,i);    // needs to widen and use var-args
    box_vararg(i,i);     // needs to box and use var-args
  }
}

long...
Integer...