/**
  * INPUT:  Three integers using three separate pop-up windows
  * OUTPUT: Their average rounded to two places.
  *
  */

  import javax.swing.JOptionPane;
  import java.text.DecimalFormat;

  class AverageOfThreeIntegers{
	  public static void main(String [] args){
		  // Declare primitive variable
		  // can declare and initialize a variable with one statement;
		  int sum = 0;

		  // Declare reference variable and create the object
		  DecimalFormat fmt = new DecimalFormat("0.00");

		  String input = JOptionPane.showInputDialog("Enter first integer");
		  sum = Integer.parseInt(input);

		  input = JOptionPane.showInputDialog("Enter second integer");
		  sum += Integer.parseInt(input);

		  input = JOptionPane.showInputDialog("Enter third integer");
		  sum += Integer.parseInt(input);

		  double average = sum / 3.0;
		  System.out.println("The average is " + fmt.format(average));
		  System.exit(0);
	  }
  }