Question

Write an application called Squaring that will: • Prompt the user to enter an integer greater than 1. Your code for this should be type-safe and validate the number, meaning that your code should re-prompt the user for another entry if they enter anything other than an integer that is greater than 1. • Repeatedly square the integer until it exceeds 1 million, outputting the value each time after squaring. • Output the number of squarings required to exceed 1 million. Make sure you test your code on a variety of different inputs and verify your results using a different method). Sample run (inputs are j, 5.0, 1, and 12. Note that the inputs are shown here, but will not print when the actual tests are run): Enter an integer greater than 1: j is not valid input. Enter an integer greater than 1: 5.0 5.0 is not valid input. Enter an integer greater than 1: 1 is not greater than 1. Enter an integer greater than 1: 12 144 20736 429981696 12 exceeded 1,000,000 after 3 squarings.

in java

Answer 1

import java.util.Scanner;

public class Squaring {
   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       int num = 0, k = 1, count = 0;
       while (k == 1) {
           k = 0;
           System.out.println("Enter an integer greater than 1:");
           if (sc.hasNextInt()) {
               num = sc.nextInt();
               sc.nextLine();
               if (num <= 1) {
                   System.out.println(num + " is not greater than 1.");
                   k = 1;
               }
           } else {
               System.out.println(sc.nextLine() + " is not a valid input.");
               k = 1;
           }
       }
       double sq = num;
       while (sq <= 1000000) {
           sq = sq * sq;
           System.out.printf("%.0f\n",sq);
           count += 1;
       }
       System.out.println(num + " exceeded 1,000,000 after " + count + " squarings.");
       sc.close();
   }
}

Enter an integer greater than 1 j is not a valid input Enter an integer greater than 1: 5.0 5.0 is not a valid input. Enter an integer greater than 1: 1 1 is not greater than 1. Enter an integer greater than 1 sgd sgd is not a valid input. Enter an integer greater than 1: -4 -4 is not greater than 1 Enter an integer greater than 1: 12 p44 20736 429981696 12 exceeded 1,e00, 000 after 3 squarings.