How to program a square in JAVA code example

Example 1: how to give square in java

import java.util.*;
public class Square {
    public static void main(String args[]){
        Scanner sc=new Scanner(System.in);
        int num;
     
        System.out.print("Enter an integer number: ");
        num=sc.nextInt();
     
        System.out.println("Square of "+ num + " is: "+ Math.pow(num, 2));
        
    }
}

Example 2: java code for square

int square = Math. pow(i, 3);