title: Code for only accepting integers
body: <pre><code>import javax.swing.*;
  import java.awt.*;
  
  public class JCD {
  
      public static void main(String[] args) {
  
          String input, inputs;
          int input1, input2;
  
          input = JOptionPane.showInputDialog("Enter first number");
          inputs = JOptionPane.showInputDialog("Enter second number");
  
          input1 = Integer.parseInt(input);
          input2 = Integer.parseInt(inputs);
  
          JOptionPane.showMessageDialog(null, "The GCD of two numbers  " + input
                  + "and" + inputs + " is: " + findGCD(input1, input2));
  
      }// close void
  
      private static int findGCD(int number1, int number2) {
          // base case
          if (number2 == 0) {
              return number1;
  
          }// end if
  
          return findGCD(number2, number1 % number2);
      }// end static
  
  } // close class
  </code></pre>
  
  <p>What can I add so that it will only accept integers? If not given an integer then it will go back to ask again..... </p>