How to square a number in java

To square a number in java there are perform following step :-

  • Create Scanner class Object and pass method to take input value.
  • sc.nextInt method read only int type value.
  • Declare one argument type test method with parameter n.
  • square are the numbers generated when a value is multiplied by itself.
  • Here i=n*n means 9=3*3 simply square a number itself.
					import java.util.*;

public class SquareNumber {

	int test(int n) {
		int i = n * n;
		return i;

	public static void main(String[] args) {
		SquareNumber sn = new SquareNumber();
		Scanner sc = new Scanner(;
		System.out.println("enter the number value :");
		int n = sc.nextInt();
		System.out.println("The square of a number is :- " + sn.test(n));



Output :-
enter the number value :
The square of a number is :- 144