frame1.java

jbuilder2005

package choicetest;

import java.awt.*;
import javax.swing.*;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import com.borland.jbcl.layout.OverlayLayout2;

public class Frame1
    extends JFrame {
  JPanel contentPane;
  FlowLayout flowLayout1 = new FlowLayout();
  Label label1 = new Label();
  Choice choice1 = new Choice();
  Label label2 = new Label();
  OverlayLayout2 overlayLayout21 = new OverlayLayout2();
  public Frame1() {
    try {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      jbInit();
    }
    catch (Exception exception) {
      exception.printStackTrace();
    }
  }

  /**
   * Component initialization.
   *
   * @throws java.lang.Exception
   */
  private void jbInit() throws Exception {
    contentPane = (JPanel) getContentPane();
    contentPane.setLayout(flowLayout1);
    setSize(new Dimension(200, 70));
    setTitle("选择性别");
    label1.setText("性别：");
    label2.setText("您的性别是：男");
    choice1.addItemListener(new Frame1_choice1_itemAdapter(this));
    contentPane.add(label1);
    contentPane.add(choice1);
    contentPane.add(label2);
    choice1.add("男");        //或： choice1.addItem("男");
    choice1.add("女");        //或： choice1.addItem("女");
  }

  public void choice1_itemStateChanged(ItemEvent e) {
    label2.setText("您的性别是："+choice1.getSelectedItem());
//    label2.setText("共有"+choice1.getItemCount()+"项");
  }
}

class Frame1_choice1_itemAdapter
    implements ItemListener {
  private Frame1 adaptee;
  Frame1_choice1_itemAdapter(Frame1 adaptee) {
    this.adaptee = adaptee;
  }

  public void itemStateChanged(ItemEvent e) {
    adaptee.choice1_itemStateChanged(e);
  }
}