Question

1. Write a program in java to find square and cube of a positive number
If the number is positive, it executes and displays the result. But if a
negative number, the program must terminate its execution.​

Answer 1

package com.company;

import java.util.Scanner;

public class Main {

   public static void main(String args[]) {

       Scanner sc = new Scanner(System.in);

       System.out.println("Enter a number to find the square and cube of it: ");

       long num = sc.nextLong();

       long num2 = num*num;

       long num3 = num*num*num;

       System.out.println("Square of "+num+" is: "+num2);

       System.out.println("Cube of "+num+" is: "+num3);

   }

}