JAVA程序几个经典的程序

package studentproject; import java.awt.BorderLayout; import java.awt.Dimension; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JLabel; import java.awt.*; import javax.swing.JTextField; import javax.swing.JComboBox; import javax.swing.JTextArea; import javax.swing.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.MouseAdapter; public class FrmStudent extends JFrame { JPanel contentPane; JLabel lblName = new JLabel(); JTextField txtName = new JTextField(); JLabel lblQua = new JLabel(); JComboBox cboQua = new JComboBox(); JLabel lblAddress = new JLabel(); JTextArea txaAddress = new JTextArea(); JLabel lblHobby = new JLabel(); JPanel pnlHobby = new JPanel(); JCheckBox chkRead = new JCheckBox(); JCheckBox chkMusic = new JCheckBox(); JCheckBox chkTravel = new JCheckBox(); JLabel lblSex = new JLabel(); JPanel pnlSex = new JPanel(); JRadioButton radMan = new JRadioButton(); JRadioButton radWoman = new JRadioButton(); JButton btnOk = new JButton(); JButton btnCancel = new JButton(); JScrollPane scp = new JScrollPane(); ButtonGroup btngrpSex = new ButtonGroup(); public FrmStudent() { try { setDefaultCloseOperation(EXIT_ON_CLOSE); jbInit(); } catch (Exception exception) { exception.printStackTrace(); } } /** * 初始化方法 */ private void jbInit() throws Exception { contentPane = (JPanel) getContentPane(); contentPane.setLayout(null); setSize(new Dimension(374, 281)); setTitle("学生信息"); lblName.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); lblName.setText("姓名"); lblName.setBounds(new Rectangle(19, 29, 46, 20)); txtName.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); txtName.setText(""); txtName.setBounds(new Rectangle(56, 27, 104, 26)); lblQua.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); lblQua.setText("学历"); lblQua.setBounds(new Rectangle(182, 28, 46, 20)); //学历组合框 cboQua.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); cboQua.setBounds(new Rectangle(223, 27, 103, 26)); //向学历组合框里添加选项 cboQua.addItem(""); cboQua.addItem("高中"); cboQua.addItem("本科"); cboQua.addItem("硕士"); lblAddress.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); lblAddress.setText("地址"); lblAddress.setBounds(new Rectangle(18, 66, 46, 20)); txaAddress.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); txaAddress.setText(""); lblHobby.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); lblHobby.setText("爱好"); lblHobby.setBounds(new Rectangle(182, 68, 46, 20)); pnlHobby.setBorder(BorderFactory.createEtchedBorder()); pnlHobby.setBounds(new Rectangle(225, 68, 101, 111)); chkRead.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); chkRead.setText("阅读"); chkMusic.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); chkMusic.setText("音乐"); chkTravel.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); chkTravel.setText("旅游"); lblSex.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); lblSex.setText("性别"); lblSex.setBounds(new Rectangle(19, 161, 46, 20)); pnlSex.setBorder(BorderFactory.createEtchedBorder()); pnlSex.setBounds(new Rectangle(56, 163, 79, 72)); radMan.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); radMan.setText("男"); radWoman.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); radWoman.setText("女"); btnOk.setBounds(new Rectangle(147, 197, 87, 29)); btnOk.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); btnOk.setText("确认"); //--3按钮监听器的注册 btnOk.addActionListener(new FrmStudent_btnOk_actionAdapter(this)); btnCancel.setBounds(new Rectangle(237, 197, 87, 29)); btnCancel.setFont(new java.awt.Font("Dialog", Font.PLAIN, 14)); btnCancel.setText("取消"); scp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); scp.setBounds(new Rectangle(57, 66, 104, 73)); contentPane.addMouseListener(new FrmStudent_contentPane_mouseAdapter(this)); pnlSex.add(radMan); pnlSex.add(radWoman); contentPane.add(scp); scp.getViewport().add(txaAddress); contentPane.add(lblSex); contentPane.add(btnCancel); contentPane.add(btnOk); contentPane.add(lblQua); contentPane.add(cboQua); contentPane.add(lblHobby); contentPane.add(pnlHobby); contentPane.add(lblName); contentPane.add(txtName); contentPane.add(lblAddress); pnlHobby.add(chkRead); pnlHobby.add(chkMusic); pnlHobby.add(chkTravel); contentPane.add(pnlSex); //将单选按钮加入按钮组 btngrpSex.add(radMan); btngrpSex.add(radWoman); } //1--按钮点击事件处理方法 public void btnOk_actionPerformed(ActionEvent e) { if(txtName.getText().length()==0){ //设置文本框里的内容 txtName.setText("请输入姓名"); } } //--1 鼠标进入事件处理方法 public void contentPane_mouseEntered(MouseEvent e) { //设置背景颜色为红色 contentPane.setBackground(Color.RED); } //--1 鼠标离开事件处理方法 public void contentPane_mouseExited(MouseEvent e) { //设置背景颜色为蓝色 contentPane.setBackground(Color.BLUE); } } //--2 鼠标事件的监听器 class FrmStudent_contentPane_mouseAdapter extends MouseAdapter { private FrmStudent adaptee; FrmStudent_contentPane_mouseAdapter(FrmStudent adaptee) { this.adaptee = adaptee; } //重写鼠标进入的方法 public void mouseEntered(MouseEvent e) { //调用鼠标进入的事件处理方法 adaptee.contentPane_mouseEntered(e); } public void mouseExited(MouseEvent e) { adaptee.contentPane_mouseExited(e); } } //--2 按钮监听器类实现ActionListener接口 class FrmStudent_btnOk_actionAdapter implements ActionListener { //声明一个主界面的引用 private FrmStudent adaptee; //构造方法 FrmStudent_btnOk_actionAdapter(FrmStudent adaptee) { this.adaptee = adaptee; } //重写接口中的方法 public void actionPerformed(ActionEvent e) { //调用事件处理方法 adaptee.btnOk_actionPerformed(e); } }