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Java SwingÇ¿È˽ø

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import javax.swing.*;
import java.awt.*;

public class Figure3 extends JFrame {

  private JDesktopPane desk;
  public Figure3(String title) {
  super(title);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
  }

  private void addFrame(int number) {
  JInternalFrame f = new JInternalFrame("Frame " + number,true,true,true,true);
    desk = new JDesktopPane();
    setContentPane(desk);
    desk.add(f, 1);
  f.setVisible(true);

    Container container=f.getContentPane();
    f.setBounds(100, 100, 300, 100);
    String root="name";
JButton button=new JButton(root);
button.setBounds(0, 10, 150, 25);
getContentPane().setLayout(null);
container.add(button);
  }

  // A simple test program.
  public static void main(String[] args) {
    Figure3 td = new Figure3("");
    td.setSize(1000, 700);
    td.setVisible(true);
    td.addFrame(1);
 
  }
}

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