Biodata dalam bentuk GUI

import javax.swing.JOptionPane;
class biodata
{
public static void main(String[] args) throws Exception
{
String nim, nama, alamat,telepon;
nim=JOptionPane.showInputDialog("NIM :");
nama=JOptionPane.showInputDialog("Nama :");
alamat=JOptionPane.showInputDialog("Alamat:");
telepon=JOptionPane.showInputDialog("Telepon :");
System.out.println("NIM :"+nim);
System.out.println("Nama :"+nama);
System.out.println("Alamat :"+alamat);
System.out.println("Telepon :"+telepon);
System.exit(0);
}
}