java界面怎么写 _界面

1. 怎么用java写一个界面怎么用java写一个界面新建一个窗口，然后实现一个关闭按钮”窗口的功能
import java.awt.*;
import java.awt.event.*;
public class TestWindowEvent {
public static void main (String[] args) {
new Frame88 ("WindowAdapter");
}
}
class Frame88 extends Frame {
Frame88 (String s) {
super(s);
setBounds (300,300,200,70);
setLayout (null);
setVisible (true);
addWindowListener (new WindowAdapter() {
public void windowClosing(WindowEvent e) {
setVisible (false);
System.exit(0);
}
} );
}
}
2. 用java给一个系统写界面应该怎么写简单例子可供参考：
import java.awt.*;
import javax.swing.*;
class text2 {
public static void main(String[] args) {
JTextField Name,Number,Class;
JFrame j = new JFrame();
j.setBounds(500, 300, 0, 0);
j.setTitle("Information");
JPanel jp = new JPanel();
jp.setLayout(new GridLayout(4, 1));
final JLabel label_1 = new JLabel();
label_1.setText("Name:");
jp.add(label_1);
Name = new JTextField();
jp.add(Name);
final JLabel label_2 = new JLabel();
label_2.setText("Number:");
jp.add(label_2);
Number = new JTextField();
jp.add(Number);
final JLabel label_3 = new JLabel();
label_3.setText("Class:");
jp.add(label_3);
Class = new JTextField();
jp.add(Class);
final JButton save = new JButton();
jp.add(save);
save.setText（"确认"）；
j.add(jp);
j.pack();
j.setVisible(true);
j.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
3. 用java写界面注册怎么写 package com.demo.client;import java.awt.GridLayout;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import javax.swing.*; public class RegistFrame extends JFrame implements ActionListener{ String serverIp = null; int port = 0; String strSex = ""; int PswProtectNum; String area = ""; JLabel labUserId; JLabel labChatname; JLabel labPsw; JLabel labRePsw; JLabel labPswQst; JLabel labPswAns; JLabel labAge; JLabel labArea; JLabel labSex; JTextField txtUserID; JTextField txtChatname; JPasswordField txtPsw; JPasswordField txtRePsw; JComboBox comPswQst; JTextField txtPswAns; JTextField txtAge; JComboBox comArea; JRadioButton rad1,rad2,rad3; JButton btnSubmit; JButton btnCancel; JPanel p0,p1,p3,p4,p5,p6,p7,p8,p9,p10; ItemListener listener1 = new ItemListener() { public void itemStateChanged(ItemEvent e) { // TODO Auto-generated method stub JRadioButton button = (JRadioButton)e.getItemSelectable(); if (button == rad1)strSex = "男"； if (button == rad2)strSex = "女"； if (button == rad3)strSex = ""; } }; ItemListener listener2 = new ItemListener() { public void itemStateChanged(ItemEvent e) { // TODO Auto-generated method stub JComboBox box = (JComboBox)e.getItemSelectable(); if(box == comPswQst){ PswProtectNum = comPswQst.getSelectedIndex(); } if(box == comArea){ area = comArea.getSelectedItem().toString(); } } }; public RegistFrame(String serverIp,int port) { this.serverIp = serverIp; this.port = port; p0 = new JPanel(); labUserId = new JLabel（"*帐号："）； txtUserID = new JTextField(20); txtUserID.setEditable(true); p0.add(labUserId); p0.add(txtUserID); p1 = new JPanel(); labChatname = new JLabel（"*昵称："）； txtChatname = new JTextField(20); txtChatname.setEditable(true); p1.add(labChatname); p1.add(txtChatname); p3 = new JPanel(); labPsw = new JLabel（"*请输入密码："）； txtPsw = new JPasswordField(20); p3.add(labPsw); p3.add(txtPsw); p4 = new JPanel(); labRePsw = new JLabel（"*请再次输入密码："）； txtRePsw = new JPasswordField(20); p4.add(labRePsw); p4.add(txtRePsw); p5 = new JPanel(); labPswQst = new JLabel（"请设定密码保护问题："）； String [] strQst = { ""，"您母亲的姓名是？"，"您父亲的职业是？"，"您配偶的生日是？"，"您的学号（工号）是？"，"您母亲的生日是？"，"您高中班主任的姓名是？"，"您父亲的姓名是？"，"您的出生地是？"，"您小学班主任的姓名是？"，"您配偶的姓名是？" }； comPswQst = new JComboBox(strQst); comPswQst.addItemListener(listener2); p5.add(labPswQst); p5.add(comPswQst); p6 = new JPanel(); labPswAns = new JLabel（"请设定密码保护答案："）； txtPswAns = new JTextField(20); p6.add(labPswAns); p6.add(txtPswAns); p7 = new JPanel(); labAge = new JLabel（"您的性别是："）； rad1 = new JRadioButton（"我是帅哥！"）； rad1.addItemListener(listener1); rad2 = new JRadioButton（"我是美女！"）； rad2.addItemListener(listener1); rad3 = new JRadioButton（"我不告诉你！"）； rad3.addItemListener(listener1); ButtonGroup group = new ButtonGroup(); group.add(rad1); group.add(rad2); group.add(rad3); p7.add(labAge); p7.add(rad1); p7.add(rad2); p7.add(rad3); p8 = new JPanel(); labArea = new JLabel（"请选择您的地区："）； String [] strArea = { "我是南方人"，"我是北方人"，"我是东北人"，"我是西北人"，"我是西南人" }； comArea = new JComboBox(strArea); comArea.addItemListener(listener2); p8.add(labArea); p8.add(comArea); p9 = new JPanel(); labAge = new JLabel（"您的年龄是："）； txtAge = new JTextField(15); p9.add(labAge); p9.add(txtAge); p10 = new JPanel(); btnSubmit = new JButton（"提交"）； btnSubmit.addActionListener(this); btnCancel = new JButton（"取消"）； btnCancel.addActionListener(this); p10.add(btnSubmit); p10.add(btnCancel); getContentPane().setLayout(new GridLayout(10,1)); getContentPane().add(p0); getContentPane().add(p1); getContentPane().add(p3); getContentPane().add(p4); getContentPane().add(p5); getContentPane().add(p6); getContentPane().add(p7); getContentPane().add(p8); getContentPane().add(p9); getContentPane().add(p10); setTitle（"注册新用户"）； pack(); setResizable(false); setDefaultCloseOperation(RegistFrame.DISPOSE_ON_CLOSE); Toolkit tk=Toolkit.getDefaultToolkit(); setLocation((tk.getScreenSize().width-getSize().width)/2,(tk.getScreenSize().height-getSize().height)/2); setVisible(true); } public void。