I’ve new to java, and i’m having problem with the JOptionPane! This is my code :

package myFirstProgram;

import javax.swing.JOptionPane;

public class GuiApplication {

    public static void main(String[] args) {
        
        String name = JOptionPane.showInputDialog("Enter your name");
        JOptionPane.showMessageDialog(null, "Hello "+name);
        
        int age = Integer.parseInt(JOptionPane.showInputDialog("Enter your age"));
        JOptionPane.showMessageDialog(null,"You are "+age+" years old");
        
      
    }

}

Can someone tell me how to fix it ?