Why is there an error in the following java code?

Question

I can't figure out the problem in this.

    public class Trying {
     public static void main(String[] args) {
         new Trying().go("hi", 1);
         new Trying().go("hi", "world", 2);
      }
     public void go(String... y, int x) {
         System.out.print(y[y.length - 1] + " ");
      }
    } 

Answer 1

A varargs argument, like String... y has to be the last variable in a method declaration. Change your declaration to:

public void go(int x, String... y) {

Answer 2

There is an attempt to declare Regular parameter after the varargs parameter which is illegal.

public void go(String... y, int x) //Error

Restriction of varags:

1. varargs must be declared last

2.There must be only one varargs parameter

change your method to public void go(int x, String... y)

Answer 3

A varargs argument must be the last variable in a method declaration

public class Trying {
    public static void main(String[] args) {
        new Trying().go(1,"hi");
        new Trying().go(2,"hi", "world");
    }
    public void go(int x,String... y) {
        for(int i=0;i<x;i++){
            System.out.println(y[i]);
        }
    }
} 

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