Variable argument function ambiguity

Question

   public static void main(String[] args) {
       System.out.println(fun(2,3,4));
     }
   static int fun(int a,int b,int c)
   {
     return 1;
   }
   static int         


        

Answer 1

If you test this expressions:

    System.out.println(fun(2,3,4));
    System.out.println(fun(2,3));
    System.out.println(fun(2,3,4,7));

The output is

1
0
0

The Java compiler first checks for a method whose declaration matchs the exact parameters of the invocation, and otherwise, it searches for the alternative method matching.