frame1.java~2~

使用jbuilder开发工具开发的java十个例子代码

package a;

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

public class Frame1 extends JFrame {
  JPanel contentPane;
  FlowLayout flowLayout1 = new FlowLayout();
  Label label1 = new Label();
  TextField textField1 = new TextField();
  Label label2 = new Label();
  TextField textField2 = new TextField();
  Button button1 = new Button();
  Button button2 = new Button();
  Choice choice1 = new Choice();
  Label label3 = new Label();

  /**Construct the frame*/
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    label1.setText("姓名：");
    contentPane.setLayout(flowLayout1);
    this.setResizable(false);
    this.setSize(new Dimension(359, 110));
    this.setTitle("Say Hello");
    textField1.setColumns(8);
    label2.setText("性别：");
    textField2.setColumns(12);
    textField2.setEditable(false);
    button1.setLabel("确定");
    button1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        button1_actionPerformed(e);
      }
    });
    button2.setLabel("清除");
    button2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        button2_actionPerformed(e);
      }
    });
    flowLayout1.setHgap(15);
    flowLayout1.setVgap(10);
    choice1.setComponentOrientation(null);
    label3.setText("问候语：");
    contentPane.add(label1, null);
    contentPane.add(textField1, null);
    contentPane.add(label2, null);
    contentPane.add(choice1, null);
    contentPane.add(label3, null);
    contentPane.add(textField2, null);
    contentPane.add(button1, null);
    contentPane.add(button2, null);
    choice1.add("--男--");
    choice1.add("--女--");
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }


  void button1_actionPerformed(ActionEvent e) {
  String s = new String();
  s = textField1.getText();
  if (choice1.getSelectedIndex() == 0)
    s = s + "先生，";
  else
    s = s + "女士，";
  s = s + "你好！";
  textField2.setText(s);
  }

  void button2_actionPerformed(ActionEvent e) {
  textField1.setText("");
  textField2.setText("");
  }
}