How to use variable argument

Using variable argument in java method can be very important tool . As we can give multiple no of inputs to the methods using variable argument.

The rules to define variable-length parameters in a method definition are as follows:

1.There must be only one variable-length parameters list.

2.If there are individual parameters in addition to the list, the variable-length parameters list must appear last inside the parentheses of the method.

3.The variable-length parameters list consists of a type followed by three dots and the name.

import java.io.*;
 class MyClass {
 public void printStuff( int... values) {
 for (int v : values ) {
 System.out.println(v);
 }
 }
 }

In the above code method printStuff(int... values ) have a variable argument . therefore multiple no of integers can be passed to it. For example:

class VarargTest {
 public static void main(String[] args) {
 MyClass mc = new MyClass();
 mc.printStuff(1);
 mc.printStuff(1,2);
 mc.printStuff(1,2,3);
 }
 }

//output::1
//1 2
//1 2 3