Java技术————创建窗口

import java.awt.Container;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import javax.swing.AbstractListModel;import javax.swing.ButtonGroup;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JList;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JRadioButton;import javax.swing.JScrollPane;import javax.swing.JTextField;import javax.swing.SwingConstants;import javax.swing.WindowConstants;public class Register extends JFrame implements ActionListener, FocusListener private static final String ADD = ADD; private static final String CANCEL = ADD; private static final long serialVersionUID = 4573735051740981321L; private JRadioButton man; private JRadioButton woman; private JTextField name_jf; private JPasswordField password1_jf; private JPasswordField password2_jf; private JComboBox education_cb; private JList hobby_jl; private JButton submit; private JButton cancel; private JPanel panel1; String str=大学,专科,高中; String str1=跑步,看书,打球; private ButtonGroup bg=new ButtonGroup(); public static void main(String args) new Register(); public Register() Container con=getContentPane(); setTitle(注册); setLayout(new GridLayout(10,8,8,8); con.add(new JLabel(用户名：,SwingConstants.CENTER); name_jf=new JTextField(8); con.add(name_jf); con.add(new JLabel(密码：,0); password1_jf=new JPasswordField(18); con.add(password1_jf); con.add(new JLabel(确认密码：,0); password2_jf=new JPasswordField(18); con.add(password2_jf); password2_jf.addFocusListener(this); con.add(new JLabel(性别：,0); woman = new JRadioButton(); man = new JRadioButton(); bg.add(man); bg.add(woman); woman.setSelected(true); woman.setText(女); man.setText(男); panel1=new JPanel(); panel1.add(woman); panel1.add(man); con.add(panel1); con.add(new JLabel(学历：,0); education_cb = new JComboBox(str); con.add(education_cb); con.add(new JLabel(爱好：,0); hobby_jl = new JList(str1); con.add(hobby_jl); con.add(getSubmit(); con.add(getCancel(); setSize(500, 600); setVisible(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setResizable(false); private JButton getCancel() if (cancel = null) cancel = new JButton(); cancel.setText(取消); cancel.setActionCommand(CANCEL); cancel.addActionListener(this); return cancel; private JButton getSubmit() if (submit = null) submit = new JButton(); submit.setText(注册); submit.setActionCommand(ADD); submit.addActionListener(this); return submit; public void focusGained(FocusEvent e) /password2_jf.requestFocus(); SuppressWarnings(deprecation)public void focusLost(FocusEvent e) JPasswordField text=(JPasswordField)e.getSource(); if(!text.getText().equals(password1_jf.getText() JOptionPane.showMessageDialog(this, 密码不匹配); /password2_jf.requestFocus(); SuppressWarnings(deprecation)public void actionPerformed(ActionEvent e) String action = e.getActionCommand(); System.out.println(action); if (action != null & ADD.equals(action) StringBuffer sb=new StringBuffer(); sb.append(姓名: ).append(name_jf.getText().append(n) .append(密码: ).append(password1_jf.getText().append(n) .append(性别: ); if(woman.isSelected() sb.append(女n); else sb.append(男n); sb.append(学历: ).append(streducation_cb.getSelectedIndex(); sb.append(n); sb.append(爱好: ); int hobby=hobby_jl.getSelectedIndices(); for(int i=0;ihobby.length;i+) sb.append(str1hobbyi+ ); JOptionPane.showMessageDialog(this, sb.toString(); else if (action != null & action.equals(CANCEL) name_jf.setText(); password1_jf.setText(); password2_jf.setText(); woman.setSelected(true); man.setSelected(false); SuppressWarnings(serial)class JListTest extends JFrame public JListTest() Container cp = getContentPane();cp.setLayout(null);JList jl = new JList(new MyListModel();JScrollPane js = new JScrollPane(jl);js.setBounds(10, 10, 100, 100);cp.add(js);setTitle(在这个窗体中使用了列表框);setSize(200, 150);setVisible(true);setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);public static void main(String args) new JListTest();class MyListModel