育才学习网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 。
3. 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);
}
}
4. 用Java怎么写一个简单完整的登陆界面
package com.oristand.cn;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class QQlogin extends JFrame{
public QQlogin()
{
JFrame jf= new JFrame("QQ登陆界面")；
jf.setLayout(new GridLayout(5,1,5,5));
JPanel jp=new JPanel();
JLabel jl=new JLabel（"欢迎登陆"）；
jp.add(jl);
jf.add(jp);
JPanel jp1=new JPanel();
JLabel jl1=new JLabel（"用户名"）；
JTextField jt=new JTextField(10);
jp1.add(jl1);
jp1.add(jt);
jf.add(jp1);
JPanel jp2=new JPanel();
JLabel jl2=new JLabel（"密码"）；
JTextField jt1=new JPasswordField(10);
jp2.add(jl2);
jp2.add(jt1);
jf.add(jp2);
JPanel jp3=new JPanel();
JButton jb=new JButton（"登陆"）；
JButton jb1=new JButton（"注册"）；
JButton jb2=new JButton（"设置"）；
jp3.add(jb);
jp3.add(jb1);
jp3.add(jb2);
jf.add(jp3);
JLabel jl3=new JLabel();
jf.add(jl3);
jf.setSize(300,400);
jf.setVisible(true);
jf.setResizable(false);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args)
{
new QQlogin();
}
}
5. java写一个登录界面
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
class login extends JFrame implements ActionListener
{
public JPasswordField password;
public JTextField name;
JButton ok;
login()
{
setSize(300,200)；//大小
setLocation(200,100);
JPanel panel = new JPanel（)；//创建一个面板对象
panel.setLayout(new GridBagLayout());
Container cn = this.getContentPane();
GridBagConstraints c = new GridBagConstraints();
c.insets = new Insets(5,2,5,5);
c.gridheight = 1;
JLabel user = new JLabel("User:");
c.gridx = 1;
c.gridy = 1;
panel.add(user,c);
name = new JTextField(10);
c.gridx = 2;
panel.add(name,c);
JLabel pass = new JLabel("assword:");
c.gridx = 1;
c.gridy = 2;
panel.add(pass,c);
password = new JPasswordField(10);
c.gridx = 2;
c.gridy = 2;
panel.add(password,c);
c.gridx = 1;
c.gridy = 3;
ok = new JButton("login");
ok.addActionListener(this);
panel.add(ok,c);
cn.add(panel);
}
public void actionPerformed(ActionEvent e)
{
Object source = e.getSource();
if(source == ok)
{
String username = this.name.getText();
String password = this.password.getText();
String message = username + " "+password;
try
{
byte[] b = message.getBytes();
FileOutputStream fos = new FileOutputStream("login.txt");
fos.write(b,0,b.length);
this.dispose();
}catch(Exception ex)
{
}
}
}
public static void main(String args[])
{
new login().show();
}
}
6. java如何写这个图形界面
//自己在微调一下坐标吧..import java.awt.BorderLayout;import java.awt.GridLayout;import java.awt.Rectangle;import java.io.Serializable;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;public class SwingTest extends JFrame implements Serializable{ private JPanel jp1,jp2,jp3; private JLabel ab1; private But[] list=But.values(); private static final long serialVersionUID = 1L; SwingTest(){ this.setTitle（"系统首页"）； this.setBounds(300, 300, 280, 200); this.setResizable(false); init(); this.setDefaultCloseOperation(EXIT_ON_CLOSE); this.setVisible(true); } private void init() { jp1=new JPanel(); jp1.add(new JLabel（"欢迎你来到图书馆租借系统"））； jp2=new JPanel(null); ab1=new JLabel（"请选择服务项目"）； ab1.setBounds(new Rectangle(0, 0, 220, 25)); jp2.add(ab1); jp3=new JPanel(new GridLayout(6,1)); jp3.setBounds(80, 20, 120, 120); for (int i = 0; i jp3.add(new JButton(list[i].toString())); } jp2.add(jp3); this.add(jp1,BorderLayout.NORTH); this.add(jp2,BorderLayout.CENTER); } public static void main(String[] args) { new SwingTest(); } enum But{ 馆藏查询，节约查询，欠费查询，借书登记，还书登记，退出系统； }}。
7. JAVA中登录窗口设计,源代码该怎么写
import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Test_Login extends javax.swing.JFrame {private JPanel jPanel1;private JButton bntLogin;private JButton bntCannel;private JPasswordField pwd;private JTextField username;private JLabel jLabel2;private JLabel jLabel1;public static void main(String[] args) { Test_Login inst = new Test_Login(); inst.setLocationRelativeTo(null); inst.setVisible(true);}public Test_Login() { super(); initGUI();}private void initGUI() { try { setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); { jPanel1 = new JPanel(); getContentPane().add(jPanel1, BorderLayout.CENTER); jPanel1.setLayout(null); { jLabel1 = new JLabel(); jPanel1.add(jLabel1); jLabel1.setText（"用户名"）； jLabel1.setBounds(45, 30, 75, 25); } { jLabel2 = new JLabel(); jPanel1.add(jLabel2); jLabel2.setText（"密码"）； jLabel2.setBounds(45, 75, 55, 15); } { username = new JTextField(); jPanel1.add(username); username.setBounds(100, 30, 140, 25); } { pwd = new JPasswordField(); jPanel1.add(pwd); pwd.setBounds(100, 70, 140, 25); } { bntLogin = new JButton(); jPanel1.add(bntLogin); bntLogin.setText（"登陆"）； bntLogin.setBounds(40, 120, 60, 30); bntLogin.addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { if (username.getText().equals("lisong") && pwd.getText().equals("lisong")) { JOptionPane.showMessageDialog(Test_Login.this， "登录成功")； } else { JOptionPane.showMessageDialog(Test_Login.this， "登录失败")； } } }）； bntCannel = new JButton(); jPanel1.add(bntCannel); bntCannel.setText（"取消"）； bntCannel.setBounds(180, 120, 60, 30); bntCannel.addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { System.exit(0); } }); } } pack(); setSize(300, 215); } catch (Exception e) { e.printStackTrace(); }}}。
8. 怎么用java编写一个按钮界面
效果图：参考代码如下import java.awt.*;import java.awt.event.*;import javax.swing.*;public class KeyDemo extends JFrame{ int index; JLabel jl = new JLabel（"你好啊~"）； JButton jb = new JButton（"点击改变标签上的文字"）； public KeyDemo（) { //设置界面的布局为边界布局 this.setLayout(new BorderLayout（)）； //设置标签文字的位置在 布局的中间 this.add(jl, BorderLayout.CENTER)； //设置按钮在布局的南部 this.add(jb, BorderLayout.SOUTH)； //设置窗口的位置和大小 this.setBounds(350, 100, 200, 120)； //设置窗口的关闭事件的响应，如果点击关闭按钮，那么就退出 this.setDefaultCloseOperation(EXIT_ON_CLOSE)； //设置窗口的标题 this.setTitle（"窗口"）； //设置窗口是否可见 this.setVisible(true)； //为按钮注册事件响应，有了这句代码就能让按钮能够响应点击事件了 jb.addActionListener(new MyActionListener()); } public static void main(String[] args) { //实例化窗口对象 new KeyDemo（)； } //实现动作Listener接口。
实现里面的actionPerformed方法 class MyActionListener implements ActionListener{ @Override public void actionPerformed(ActionEvent e) { index++; jl.setText（"你点击了"+index+"次按钮"）； } }}。
9. 如何用JAVA编程编写一个界面程序（急求
我下面写了一个，初始账号和密码是 nihao 5201314 你可以改或设置
import java.awt.*;
import java.awt.event.*;
class MyDow extends Frame implements ActionListener{
private Label lName,lPassword;
private TextField tName,tPassword;
private Button login,rest,exitout;
private Label login_clew;
private int count=0;
private String myName="nihao";
private String myPassword="5201314";
public void setMyNP(String n,String p){
myName=n;
myPassword=p;
}
public MyDow(String str){
super(str);
}
public void init(){
setLayout(null);
setSize(400,300);
setVisible(true);
setResizable(false);
lName=new Label（"姓名"）；
lName.setBounds(50, 70, 60, 30);add(lName);
lPassword=new Label（"密码"）；
lPassword.setBounds(50, 120, 60, 30);add(lPassword);
tName=new TextField("");
tName.setBounds(110, 70, 200, 30);add(tName);
tPassword=new TextField("");
tPassword.setBounds(110, 120, 200, 30);add(tPassword);
login=new Button（"登录"）；
login.setBounds(90, 200, 60, 30);add(login);
rest=new Button（"重输"）；
rest.setBounds(170, 200, 60, 30);add(rest);
exitout=new Button（"退出"）；
exitout.setBounds(250,200,60,30);add(exitout);
login_clew=new Label("");
login.addActionListener(this);
rest.addActionListener(this);
exitout.addActionListener(this);
}
public void actionPerformed(ActionEvent e){
if(e.getSource()==login){
if(count