// ages
import javax.swing.JOptionPane;

public class age {
  public static void main(String[] args) {

    // Prompt the user to enter a number: 
    String numString = JOptionPane.showInputDialog(null, 
      "Enter your age:", "Input Window Demo", 
      JOptionPane.QUESTION_MESSAGE);
    
    // Convert the string into an int value
    int age = Integer.parseInt(numString);
	System.out.println(" Your age is " + age + ".");
	
/* A person is a teenager if their age is 13 thu 19 */
	if (age > 12) 
	   if (age <20) 
	      System.out.println("You are a teenager!\n");   
	     else
		  System.out.println("You are too old to be a teenager!\n");
	 else
		System.out.println("You are too young to be a teenager!\n");

    System.exit(0);
  } 
}