Java AWT应用示例 - 持续更新

亦凉 2022-04-06 08:58 263阅读 0赞

/*
     * @(#)SampleAWT.java        1.00 17/06/27
     *
     * Copyright (c) 2017  Jacky.Dai
     * Address:.......
     * All rights reserved.
     *
     * Your
     * NOTES
     * HERE
     */
    
    //package test;
    //import java.awt.*;
    import java.awt.BorderLayout;
    import java.awt.Button;
    import java.awt.Frame;
    import java.awt.Label;
    import java.awt.TextField;
    import java.awt.event.MouseEvent;
    import java.awt.event.MouseListener;
    import java.awt.event.MouseMotionListener;
    import java.awt.event.WindowEvent;
    import java.awt.event.WindowListener;
    
    /**
     * Class description goes here.
     *
     * @version 	1.00 27 June 2017
     * @author 	Jacky_Dai
     */
    public class SampleAWT implements MouseListener, MouseMotionListener
    {
       
    	/** mainFrame - This is the main frame for user */
        private Frame mainFrame;
    
    	/**
         * titleLabel - thi is a sampele label
         * to display the title
         */
        private Label titleLabel;
    
    	 /** testButton - sample Button for test */
        private Button testButton;
    
    	 /** userTextField - sample TextField for test */
        private TextField userTextField;
    
    	private final static int TEXT_FIELD_SIZE = 40;
    
        public void DisplayUI()
        {
       
            mainFrame = new Frame("SampleAWT main frame");
            // 加上窗口监听器，其中主要实现了退出功能
            mainFrame.addWindowListener(new SampleWindowListener());
    
            // 加一个标签
            titleLabel = new Label("Titile - This is a label.");
            mainFrame.add(titleLabel, BorderLayout.NORTH);
    
            // 加一个按钮
            testButton = new Button("Test Button");
            mainFrame.add(testButton, BorderLayout.WEST);
    
            // 设置按钮事件监听器，按钮按下时会向控制台输出信息
            //testButton.addActionListener(new MyButtonListener());
    
            // 加一个文本编辑框
            userTextField = new TextField(TEXT_FIELD_SIZE);
            mainFrame.add(userTextField, BorderLayout.SOUTH);
    
            // 加上鼠标动作监听器,因为类本身实现了这两个接口，所以参数是this
            mainFrame.addMouseListener(this);
            mainFrame.addMouseMotionListener(this);
            // 可以添加多个监听器，所以还可以定义其他的，如MyMouseListener类，然后加上
    
            // 设置刚好能容纳这些控件的尺寸
            mainFrame.pack();
            // 设置为可见
            mainFrame.setVisible(true);
        }
    
        public static void main(String[] args)
        {
       
            SampleAWT window = new SampleAWT();
            window.DisplayUI();
        }
    
    	//
    	//鼠标监听器MouseListener
    	//监听鼠标事件MouseEvent。
    	//相应事件和处理方法
    	//鼠标事件         处理方法
    	//MOUSE_CLICKED    MouseClicked (MouseEvent)    鼠标点击（单或双）
    	//MOUSE_PRESSED    MousePressed (MouseEvent)    鼠标按下
    	//MOUSE_RELEASED   MouseReleased(MouseEvent)    鼠标松开
    	//MOUSE_ENTERED    MouseEntered (MouseEvent)    鼠标进入（某组件区域）
    	//MOUSE_EXITED     MouseExited  (MouseEvent)    鼠标离开（某组件区域）
    	//
    	//Handle Events of MouseListener
    	@Override
    	public void mouseClicked(MouseEvent e)
    	{
       
    
    	}
    
    	@Override
    	public void mouseEntered(MouseEvent e)
    	{
       
    
    	}
    
    	@Override
    	public void mouseExited(MouseEvent e)
    	{
       
    		this.userTextField.setText("the mouse has exited.");
    	}
    
    	@Override
    	public void mousePressed(MouseEvent e)
    	{
       
    
    	}
    
    	@Override
    	public void mouseReleased(MouseEvent e)
    	{
       
    	}
    
    	//鼠标监听器MouseMotionListener
        //对于鼠标的移动和拖放，另外用鼠标运动监听器MouseMotionListener。
        //因为许多程序不需要监听鼠标运动，把两者分开可简化程序。
        //相应事件和处理方法 
        //鼠标事件          处理方法
        //MOUSE_MOVED      MouseMoved  (MouseEvent)    鼠标在移动
        //MOUSE_DRAGGED    MouseDragged(MouseEvent)    鼠标被拖动
    	//
    	//Handle Events of s MouseMotionListener
    	@Override
    	public void mouseDragged(MouseEvent e)
    	{
       
    
    	}
    
    	@Override
    	public void mouseMoved(MouseEvent e)
    	{
       
    		String str = "x = " + e.getX() + ", y = " + e.getY();
    		this.userTextField.setText(str);
    		System.out.println(str);
    	}
    }
    class SampleWindowListener implements WindowListener
    {
       
    
        @Override
        public void windowActivated(WindowEvent e)
        {
       
    		//当窗口从非激活到激活状态时监视器调用该方法
        }
    
        @Override
        public void windowClosed(WindowEvent e)
        {
       
    		//当窗口关闭时
        }
    
        @Override
        public void windowClosing(WindowEvent e)
        {
       
    		//窗口正被关闭
            System.out.println("windowClosing");
            // 退出
            System.exit(0);
        }
    
        @Override
        public void windowDeactivated(WindowEvent e)
        {
       
            //激活到非激活状态
        }
    
        @Override
        public void windowDeiconified(WindowEvent e)
        {
       
            //当窗口撤销图标化时
        }
    
        @Override
        public void windowIconified(WindowEvent e)
        {
       
    		//当窗口图标化时
        }
    
        @Override
        public void windowOpened(WindowEvent e)
        {
       
    		//当窗口打开时
        }
    }

javac -encoding UTF-8 SampleAWT.java

jar cvf SampleAWT .jar SampleAWT.class SampleWindowListener.class

修改Jar包 META-INF\\MANIFEST.MF

Manifest-Version: 1.0
    Created-By: 1.8.0_131 (Oracle Corporation)
    Main-Class: SampleAWT

jar SampleAWT

AWT的布局管理器
    
    AWT中主要有四种布局管理器：FlowLayout、GridLayout、BorderLayout和CardLayout。
    
    下面给出这四种布局管理器的源码：
    
    package com.guan.visualTest.frameTest;
    
    import java.awt.BorderLayout;
    import java.awt.Button;
    import java.awt.CardLayout;
    import java.awt.FlowLayout;
    import java.awt.Frame;
    import java.awt.GridLayout;
    import java.awt.Panel;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.awt.event.WindowAdapter;
    import java.awt.event.WindowEvent;
    
    public class YourFrame extends Frame{
       
        private static final long serialVersionUID = 1L;
    
        Panel borderLayoutPanel;
        Panel cardLayoutPanel;
        Panel flowLayoutPanel;
        Panel gridLayoutPanel;
    
        private void generateGridLayoutPanel() {
       
           gridLayoutPanel = new Panel();
           gridLayoutPanel.setLayout(new GridLayout(2,2));
    
           Button button1 = new Button("button1");
           Button button2 = new Button("button2");
           Button button3 = new Button("button3");
           Button button4 = new Button("button4");
    
           gridLayoutPanel.add(button1);
           gridLayoutPanel.add(button2);
           gridLayoutPanel.add(button3);
           gridLayoutPanel.add(button4);     
        }
    
        private void generateFlowLayoutPanel() {
       
           flowLayoutPanel = new Panel();
           flowLayoutPanel.setLayout(new FlowLayout());
    
           Button button1 = new Button("button1");
           Button button2 = new Button("button2");
           Button button3 = new Button("button3");
           Button button4 = new Button("button4");
           Button button5 = new Button("button5");
    
           button1.addActionListener(new ActionListener() {
       
               @Override
               public void actionPerformed(ActionEvent e) {
       
                  ((Button)e.getSource()).setLabel("welcome ");
               }
           });
    
           flowLayoutPanel.add(button1);
           flowLayoutPanel.add(button2);
           flowLayoutPanel.add(button3);
           flowLayoutPanel.add(button4);
           flowLayoutPanel.add(button5);
        }
    
        private void generateBorderLayoutPanel() {
       
           borderLayoutPanel = new Panel();
           borderLayoutPanel.setLayout(new BorderLayout());
    
           Button button1 = new Button("South");
           Button button2 = new Button("West");
           Button button3 = new Button("East");
           Button button4 = new Button("North");
           Button button5 = new Button("Center");
    
           borderLayoutPanel.add(button1,BorderLayout.SOUTH);
           borderLayoutPanel.add(button2,BorderLayout.WEST);
           borderLayoutPanel.add(button3,BorderLayout.EAST);
           borderLayoutPanel.add(button4,BorderLayout.NORTH);
           borderLayoutPanel.add(button5,BorderLayout.CENTER);
        }
    
        private void genrateCardLayoutPanel() {
       
           cardLayoutPanel = new Panel();
           final CardLayout cl = new CardLayout();
           cardLayoutPanel.setLayout(cl);
    
           Button button1 = new Button("black");
           Button button2 = new Button("red");
    
           ActionListener al = new ActionListener() {
       
               @Override
               public void actionPerformed(ActionEvent e) {
       
                  cl.next(cardLayoutPanel);             
               }
           };
    
           button1.addActionListener(al);
           button2.addActionListener(al);
    
           cardLayoutPanel.add(button1,"1");
           cardLayoutPanel.add(button2,"2");
        }
    
        public YourFrame(String panelName) {
       
           super("panelName");
    
           generateBorderLayoutPanel();
           generateFlowLayoutPanel();
           generateGridLayoutPanel();
           genrateCardLayoutPanel();
           setLayout(new GridLayout(2,2));
    
           add(borderLayoutPanel);
           add(flowLayoutPanel);
           add(gridLayoutPanel);
           add(cardLayoutPanel);
    
           setSize(800, 800);
           setLocation(100,100);
    
           addWindowListener(new WindowAdapter(){
       
               @Override
               public void windowClosing(WindowEvent arg0) {
       
                  System.exit(0);
               }
           });
        }
    
        public static void main(String[] args) {
       
           YourFrame yourFrame = new YourFrame("welcome");
           yourFrame.setVisible(true);
        }
    }

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