编写的JFrame代码,如何能够同时被多个人打开

编写的JFrame代码,如何能够同时被多个人打开

import java.awt.BorderLayout;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
public class Test extends JFrame {
public Test() {
JDesktopPane desktop = new JDesktopPane();
JInternalFrame internal = new JInternalFrame();
internal.setSize(300, 200);
internal.setVisible(true);
desktop.add(internal);
add(desktop, BorderLayout.CENTER);
setSize(600, 400);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
}
public static void main(String[] args) throws Exception {
new Test();
}
}