java实战项目案例 javaswing项目案例

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mob6454cc6a469b 2023-07-28 15:50:22

文章标签 java实战项目案例 java swing ide 监听器 文章分类 Java 后端开发

码码；

package swing1;

import javax.swing.JFrame;  
import javax.swing.WindowConstants;  
  
public class EmptyJFrame extends JFrame{  
  
    public static void main(String[] args) {  
        //现在创建了一个对象，不过什么都显示不出来  
        EmptyJFrame f = new EmptyJFrame();  
        //加上这一句就可以显示一个仅有关闭，最小化，最大化的按钮的Frame了  
        f.setVisible(true);  
        //再加上这一句就可以显示一个在左上角，拥有指定大小的Frame了  
        f.setSize(300,200);  
        //再加上这一句就可以把Frame放在最中间了  
        f.setLocationRelativeTo(null);  
        //如果没有这一句，在点击关闭Frame的时候程序其实还是在执行状态中的，加上这一句才算是真正的把资源释放掉了  
        f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);  
    }  
}

package swing1;

import javax.swing.JFrame;  
import javax.swing.SwingUtilities;  
import javax.swing.WindowConstants;  
  
public class EmptyJFrame2 extends JFrame{  
    EmptyJFrame2(){  
        initGUI();  
    }  
    private void initGUI(){  
        setVisible(true);  
        setSize(300,200);  
        setLocationRelativeTo(null);  
        setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);  
    }  
    public static void main(String[] args) {  
        SwingUtilities.invokeLater(new Runnable() {  
            public void run() {  
                EmptyJFrame2 f = new EmptyJFrame2();  
            }                 
        });  
    }  
}

图图；

java实战项目案例 javaswing项目案例_ide

码码；

package swing1;

import javax.swing.JButton;  
import javax.swing.JFrame;  
import javax.swing.SwingUtilities;  
import javax.swing.WindowConstants;  
  
public class AddComponent extends JFrame{  
    public AddComponent(){  
        initGUI();  
    }  
    private void initGUI(){  
        setVisible(true);  
        setSize(300,200);  
        setLocationRelativeTo(null);  
        setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);  
          
        //创建元件  
        JButton jButton1 = new JButton("jButton1");  
        //添加元件  
        add(jButton1);  
    }  
    public static void main(String[] args) {  
        SwingUtilities.invokeLater(new Runnable() {  
            public void run() {  
                AddComponent f = new AddComponent();  
            }                 
        });  
    }  
}

package swing1;

import javax.swing.JButton;  
import javax.swing.JFrame;  
import javax.swing.SwingUtilities;  
import javax.swing.WindowConstants;  
  
public class AddComponent2 extends JFrame{  
    //定义变量  
    private JButton jButton1;  
    public AddComponent2(){  
        initGUI();  
        addComp();  
    }  
    private void addComp(){  
        //初始化  
        jButton1 = new JButton("jButton1");  
        //添加元件  
        add(jButton1);  
    }  
    private void initGUI(){  
        setVisible(true);  
        setSize(300,400);  
        setLocationRelativeTo(null);  
        setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);  
    }  
    public static void main(String[] args) {  
        SwingUtilities.invokeLater(new Runnable() {  
            public void run() {  
                AddComponent2 f = new AddComponent2();  
            }                 
        });  
    }  
}

图图；

java实战项目案例 javaswing项目案例_java实战项目案例_02

码码；

package swing1;

import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.*;
/**
 * swing基础实例
 * @author HZ20232
 *
 */
public class Hello{
    public static void main(String args[])throws Exception{
        NewFrame frame1 = new NewFrame();
        frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//一定要设置关闭

        frame1.setVisible(true);
    }
}
class NewFrame extends JFrame{
    private JLabel label1;
    private JButton button1;
    private JTextField text1;
    private JComboBox box;
    private JMenuBar menuBar;
    private JSlider slider;
    private JSpinner spinner;
    private JToolBar toolBar;
    
    public NewFrame(){
        super();
        this.setSize(300,500);
        this.getContentPane().setLayout(null);//设置布局控制器

//        this.getContentPane().setLayout(new FlowLayout());//设置布局控制器

//        this.getContentPane().setLayout(new GridLayout(1,2));//设置布局控制器,需要给出设定的行列数目

//        this.getContentPane().setLayout(new BorderLayout());//设置布局控制器，以North,South,West,East，来控制控件布局

//        this.getContentPane().setLayout(new GridBagLayout());//设置布局控制器

        this.add(this.getTextField(),null);//添加文本框

        this.add(this.getButton(),null);//添加按钮

        this.add(this.getLabel(),null);//添加标签

        this.add(this.getBox(),null);//添加下拉列表框

        this.setJMenuBar(this.getMenu());//添加菜单

        this.add(this.getSlider(),null);
        this.add(this.getSpinner(),null);
        this.add(this.getToolBar(),null);
        this.setTitle("Hello World!");//设置窗口标题

    }
    private JToolBar getToolBar(){
        if(toolBar==null){
            toolBar = new JToolBar();
            toolBar.setBounds(103,260,71,20);
            toolBar.setFloatable(true);
        }
        return toolBar;
    }
    private JSpinner getSpinner(){
        if(spinner==null){
            spinner = new JSpinner();
            spinner.setBounds(103,220, 80,20);
            spinner.setValue(100);
        }
        return spinner;
    }
    private JSlider getSlider(){
        if(slider==null){
            slider = new JSlider();
            slider.setBounds(103,200,100, 20);
            slider.setMaximum(100);
            slider.setMinimum(0);
            slider.setOrientation(0);
            slider.setValue(0);
        }
        return slider;
    }
    /**
     * 菜单的级别JMenuBar->JMenu->JMenuItem
     * 三级都是1：n的关系
     * 最后添加菜单用的SetJMenuBar方法
     * @return 建立好的菜单
     */
    private JMenuBar getMenu(){
        if(menuBar==null){
            menuBar = new JMenuBar();
            JMenu m1 = new JMenu();
            m1.setText("文件");
            JMenu m2 = new JMenu();
            m2.setText("编辑");
            JMenu m3 = new JMenu();
            m3.setText("帮助");
            
            JMenuItem item11 = new JMenuItem();
            item11.setText("打开");
            JMenuItem item12 = new JMenuItem();
            item12.setText("保存");
            JMenuItem item13 = new JMenuItem();
            item13.setText("退出");
            
            JMenuItem item21 = new JMenuItem();
            item21.setText("复制");
            JMenuItem item22 = new JMenuItem();
            item22.setText("拷贝");
            JMenuItem item23 = new JMenuItem();
            item23.setText("剪切");
            
            JMenuItem item31 = new JMenuItem();
            item31.setText("欢迎");
            JMenuItem item32 = new JMenuItem();
            item32.setText("搜索");
            JMenuItem item33 = new JMenuItem();
            item33.setText("版本信息");
            
            m1.add(item11);
            m1.add(item12);
            m1.add(item13);
            
            m2.add(item21);
            m2.add(item22);
            m2.add(item23);
            
            m3.add(item31);
            m3.add(item32);
            m3.add(item33);
            
            menuBar.add(m1);
            menuBar.add(m2);
            menuBar.add(m3);
        }
        return menuBar;
    }
    /**
     * 设置下拉列表框
     * @return
     */
    private JComboBox getBox(){
        if(box==null){
            box = new JComboBox();
            box.setBounds(103,140,71,27);
            box.addItem("1");
            box.addItem("2");
            box.addActionListener(new comboxListener());//为下拉列表框添加监听器类

        }
        return box;
    }
    private class comboxListener implements ActionListener{
        public void actionPerformed(ActionEvent e){
            Object o = e.getSource();
            System.out.println(o.toString());
        }
    }
    /**
     * 设置标签
     * @return 设置好的标签
     */
    private JLabel getLabel(){
        if(label1==null){
            label1 = new JLabel();
            label1.setBounds(34,49,53,18);
            label1.setText("Name");
            label1.setToolTipText("JLabel");
        }
        return label1;
    }
    /**
     * 设置按钮
     * @return 设置好的按钮
     */
    private JButton getButton(){
        if(button1==null){
            button1 = new JButton();
            button1.setBounds(103,110,71,27);
            button1.setText("OK");
            button1.setToolTipText("OK");
            button1.addActionListener(new HelloButton());//添加监听器类，其主要的响应都由监听器类的方法实现

        }
        return button1;
    }
    /**
     * 监听器类实现ActionListener接口，主要实现actionPerformed方法
     * @author HZ20232
     *
     */
    private class HelloButton implements ActionListener{
        public void actionPerformed(ActionEvent e){
            System.out.println("Hello world!");
        }
    }
    /**
     * 设定文本域
     * @return
     */
    private JTextField getTextField(){
        if(text1==null){
            text1 = new JTextField();
            text1.setBounds(96,49,160,20);
        }
        return text1;
    }
}

图图；

java实战项目案例 javaswing项目案例_ide_03

码码；

package swing1;

import java.awt.BorderLayout; 
import java.awt.Color; 
import java.awt.Container; 
import java.awt.Cursor; 
import java.awt.Dimension; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.KeyEvent; 
import java.awt.event.MouseAdapter; 
import java.awt.event.MouseEvent; 
import java.awt.event.WindowAdapter; 
import java.awt.event.WindowEvent; 

import javax.swing.BoundedRangeModel; 
import javax.swing.ButtonGroup; 
import javax.swing.DefaultListModel; 
import javax.swing.Icon; 
import javax.swing.ImageIcon; 
import javax.swing.JButton; 
import javax.swing.JCheckBox; 
import javax.swing.JComboBox; 
import javax.swing.JDialog; 
import javax.swing.JFileChooser; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JList; 
import javax.swing.JMenu; 
import javax.swing.JMenuBar; 
import javax.swing.JMenuItem; 
import javax.swing.JOptionPane; 
import javax.swing.JPanel; 
import javax.swing.JProgressBar; 
import javax.swing.JRadioButton; 
import javax.swing.JScrollPane; 
import javax.swing.JSplitPane; 
import javax.swing.JTabbedPane; 
import javax.swing.JTable; 
import javax.swing.JTextField; 
import javax.swing.JTextPane; 
import javax.swing.JToggleButton; 
import javax.swing.JTree; 
import javax.swing.Timer; 
import javax.swing.border.EtchedBorder; 
import javax.swing.event.ListSelectionEvent; 
import javax.swing.event.ListSelectionListener; 
import javax.swing.event.TreeSelectionEvent; 
import javax.swing.event.TreeSelectionListener; 
import javax.swing.tree.DefaultMutableTreeNode; 
import javax.swing.tree.TreeSelectionModel; 

public class Test extends JFrame{ 

public Test(){ 

   MenuTest menuTest=new MenuTest(); 

   LeftPanel leftPanel=new LeftPanel(); 

   RightPanel rightPanel=new RightPanel(); 

   BottomPanel bottomPanel=new BottomPanel(); 

   CenterPanel centerPanel=new CenterPanel(); 

   Container c=this.getContentPane(); 

   this.setJMenuBar(menuTest); 

   c.add(leftPanel,BorderLayout.WEST); 

   c.add(rightPanel,BorderLayout.EAST); 

   c.add(centerPanel,BorderLayout.CENTER); 

   c.add(bottomPanel,BorderLayout.SOUTH); 

  

   this.addWindowListener(new WindowAdapter(){ 

    public void WindowClosing(WindowEvent e){ 

     dispose(); 

     System.exit(0); 

    } 

   }); 

   setSize(700,500); 

   setTitle("Swing 组件大全简体版"); 

   setUndecorated(true); 

   setLocation(200,150); 

   show();  

} 

class MenuTest extends JMenuBar{ 

   private JDialog aboutDialog; 

   public MenuTest(){ 

   JMenu fileMenu=new JMenu("文件"); 

   JMenuItem exitMenuItem=new JMenuItem("退出",KeyEvent.VK_E); 

   JMenuItem aboutMenuItem=new JMenuItem("关于..",KeyEvent.VK_A); 

   fileMenu.add(exitMenuItem); 

   fileMenu.add(aboutMenuItem); 

   this.add(fileMenu); 

   aboutDialog=new JDialog(); 

   initAboutDialog(); 

  

   exitMenuItem.addActionListener(new ActionListener(){ 

    public void actionPerformed(ActionEvent e){ 

     dispose(); 

     System.exit(0); 

    } 

   }); 

   aboutMenuItem.addActionListener(new ActionListener(){ 

    public void actionPerformed(ActionEvent e){ 

     aboutDialog.show(); 

    } 

   }); 

} 

public JDialog get(){ 

   return aboutDialog; 

} 

public void initAboutDialog(){ 

   aboutDialog.setTitle("关于"); 

   Container con=aboutDialog.getContentPane(); 

   Icon icon=new ImageIcon("sdmile.gif"); 

   JLabel aboutLabel=new JLabel("<html><b><font size=5>"+"<center>Swing!"+"<br>",icon,JLabel.CENTER); 

   con.add(aboutLabel,BorderLayout.CENTER); 

   aboutDialog.setSize(450,225); 

   aboutDialog.setLocation(300,300); 

   aboutDialog.addWindowListener(new WindowAdapter(){ 

    public void WindowClosing(WindowEvent e){ 

     dispose(); 

    } 

   }); 

  

} 

} 

class LeftPanel extends JPanel{ 

   private int i=0; 

   public LeftPanel(){ 

    DefaultMutableTreeNode root=new DefaultMutableTreeNode("Root"); 

    DefaultMutableTreeNode child=new DefaultMutableTreeNode("Child"); 

    DefaultMutableTreeNode select=new DefaultMutableTreeNode("select"); 

    DefaultMutableTreeNode child1=new DefaultMutableTreeNode(""+i); 

    root.add(child); 

    root.add(select); 

    child.add(child1); 

    JTree tree=new JTree(root); 

    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION); 

    tree.setRowHeight(20); 

    tree.addTreeSelectionListener(new TreeSelectionListener(){ 

     public void valueChanged(TreeSelectionEvent e){ 

      JTree tree=(JTree)e.getSource(); 

      DefaultMutableTreeNode selectNode=(DefaultMutableTreeNode)tree.getLastSelectedPathComponent(); 

      i++; 

      selectNode.add(new DefaultMutableTreeNode(""+i)); 

     } 

    }); 

    tree.setPreferredSize(new Dimension(100,300)); 

    JScrollPane scrollPane=new JScrollPane(tree); 

    this.add(scrollPane); 

    

    } 

   

   } 

class BottomPanel extends JPanel{ 

   private JProgressBar pb; 

   public BottomPanel(){ 

    pb=new JProgressBar(); 

    pb.setPreferredSize(new Dimension(680,20)); 

    Timer time=new Timer(1,new ActionListener(){ 

     int counter=0; 

     public void actionPerformed(ActionEvent e){ 

      counter++; 

      pb.setValue(counter); 

      Timer t=(Timer)e.getSource(); 

      if(counter==pb.getMaximum()){ 

       t.stop(); 

       counter=0; 

       t.start(); 

      } 

     } 

    }); 

    time.start(); 

    pb.setStringPainted(true); 

    pb.setMinimum(0); 

    pb.setMaximum(1000); 

    pb.setBackground(Color.white); 

    pb.setForeground(Color.red); 

   

    this.add(pb); 

   } 

   public void setProcessBar(BoundedRangeModel rangeModel){ 

    pb.setModel(rangeModel); 

   } 

} 

class RightPanel extends JPanel{ 

   public RightPanel(){ 

    this.setLayout(new GridLayout(8,1)); 

    JCheckBox checkBox=new JCheckBox("复选按钮"); 

    JButton button=new JButton("打开文件"); 

    button.addActionListener(new ActionListener(){ 

     public void actionPerformed(ActionEvent e){ 

      JFileChooser file=new JFileChooser(); 

      int resule=file.showOpenDialog(new JPanel()); 

      if(resule==file.APPROVE_OPTION){ 

       String fileName=file.getSelectedFile().getName(); 

       String dir=file.getSelectedFile().getName(); 

       JOptionPane.showConfirmDialog(null,dir+"\\"+fileName,"选择的文件",JOptionPane.YES_OPTION); 

      } 

     } 

    }); 

    JToggleButton toggleButton=new JToggleButton("双胎按钮"); 

    ButtonGroup buttonGroup=new ButtonGroup(); 

    JRadioButton radioButton1=new JRadioButton("单选按钮1",false); 

    JRadioButton radioButton2=new JRadioButton("单选按钮2",false); 

    JComboBox comboBox=new JComboBox(); 

    comboBox.setToolTipText("点击下拉列表增加选项"); 

    comboBox.addActionListener(new ActionListener(){ 

     public void actionPerformed(ActionEvent e){ 

      JComboBox comboBox=(JComboBox)e.getSource(); 

      comboBox.addItem("程序员"); 

      comboBox.addItem("分析员"); 

     } 

    }); 

    DefaultListModel litem=new DefaultListModel(); 

    litem.addElement("香蕉"); 

    litem.addElement("水果"); 

    JList list=new JList(litem); 

    list.addListSelectionListener(new ListSelectionListener(){ 

     public void valueChanged(ListSelectionEvent e){ 

      JList l=(JList)e.getSource(); 

      Object s=l.getSelectedValue(); 

      JOptionPane.showMessageDialog(null,s,"消息框",JOptionPane.YES_OPTION); 

     

     } 

    }); 

    buttonGroup.add(radioButton1); 

    buttonGroup.add(radioButton2); 

    add(button); 

    add(toggleButton); 

    add(checkBox); 

    add(radioButton1); 

    add(radioButton2); 

    add(comboBox); 

    add(list); 

    this.setBorder(new EtchedBorder(EtchedBorder.LOWERED,Color.LIGHT_GRAY,Color.blue)); 

   } 

} 

class CenterPanel extends JPanel{ 

   public CenterPanel(){ 

    JTabbedPane tab=new JTabbedPane(JTabbedPane.TOP); 

    JTextField textField=new JTextField("文本域，点击打开<文件按钮>可选择文件"); 

    textField.setActionCommand("textField"); 

    JTextPane textPane=new JTextPane(); 

    textPane.setCursor(new Cursor(Cursor.TEXT_CURSOR)); 

    textPane.setText("编辑器，试着点击文本区，试着拉动分隔条。"); 

   

    textPane.addMouseListener(new MouseAdapter(){ 

     public void mousePressed(MouseEvent e){ 

      JTextPane textPane=(JTextPane)e.getSource(); 

      textPane.setText("编辑器点击命令成功"); 

     } 

    }); 

    JSplitPane splitPane=new JSplitPane(JSplitPane.VERTICAL_SPLIT,textField,textPane); 

    JTable table=new JTable(10,10); 

    JPanel pane=new JPanel(); 

    pane.add(table.getTableHeader(),BorderLayout.NORTH); 

    pane.add(table); 

    tab.addTab("文本演示",splitPane); 

    tab.addTab("表格演示", pane); 

    tab.setPreferredSize(new Dimension(500,600)); 

    this.add(tab); 

    this.setEnabled(true); 

   } 

} 

public static void main(String args[]){ 

   new Test(); 

} 

}

图图；

java实战项目案例 javaswing项目案例_监听器_04