var-arg and array problem

[Mohit G Gupta]

  

public class Widening1
{
	static void go(int...x)
{System.out.println("widening to simple int");
	}
	static void go(int[] a2)
	{System.out.println("array");
	}
	static void go(int a,int b)
		
	{System.out.println("simple");
		}
		
		public static void main(String arg[])
		{
			go(4,4);
			Byte a=12;
			go(a,a);
		}
}
  

output:

cannot declare both go(int[]) and go(int...) in Widening1
static void go(int[] a2)
^
1 error

please explain ?

[Chinmaya Chowdary]

Hi, Mohit.

     static void go(int...x)  
 {System.out.println("widening to simple int");  
     }  

Here var-args internally represented as array, like

    static void go(int[] x){
.....
}

Compiler will do this. There is a conflict. There should be one.