frame1.java

是用java开发的一些程序原代码 是用java开发的一些程序原代码

package ex09_07;

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

public class Frame1 extends JFrame {
  JPanel contentPane;
  JLabel jLabel1 = new JLabel();
  ButtonGroup buttonGroup1 = new ButtonGroup();
  JRadioButton jRadioButton1 = new JRadioButton();
  JRadioButton jRadioButton2 = new JRadioButton();
  JRadioButton jRadioButton3 = new JRadioButton();

  /**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();
    jLabel1.setText("改变文字大小");
    jLabel1.setBounds(new Rectangle(21, 17, 156, 27));
    contentPane.setLayout(null);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Frame Title");
    jRadioButton1.setFont(new java.awt.Font("Dialog", 0, 14));
    jRadioButton1.setText("18");
    jRadioButton1.setBounds(new Rectangle(41, 48, 103, 27));
    jRadioButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jRadioButton1_actionPerformed(e);
      }
    });
    jRadioButton2.setFont(new java.awt.Font("Dialog", 0, 14));
    jRadioButton2.setText("16");
    jRadioButton2.setBounds(new Rectangle(41, 77, 103, 27));
    jRadioButton2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jRadioButton2_actionPerformed(e);
      }
    });
    jRadioButton3.setFont(new java.awt.Font("Dialog", 0, 14));
    jRadioButton3.setText("12");
    jRadioButton3.setBounds(new Rectangle(41, 105, 103, 27));
    jRadioButton3.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jRadioButton3_actionPerformed(e);
      }
    });
    contentPane.add(jLabel1, null);
    contentPane.add(jRadioButton1, null);
    contentPane.add(jRadioButton2, null);
    contentPane.add(jRadioButton3, null);
    buttonGroup1.add(jRadioButton1);
    buttonGroup1.add(jRadioButton2);
    buttonGroup1.add(jRadioButton3);
  }
  /**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 jRadioButton1_actionPerformed(ActionEvent e) {
//设置字体大小为18
jLabel1.setFont(new Font("Dialog",0,18));
  }

  void jRadioButton2_actionPerformed(ActionEvent e) {
//设置字体大小为16
jLabel1.setFont(new Font("Dialog",0,16));
  }

  void jRadioButton3_actionPerformed(ActionEvent e) {
//设置字体大小为12
jLabel1.setFont(new Font("Dialog",0,12));
  }
}