java编写注册代码,Java代码编写
用Java编写注册登录程序
什么都不说了 直接给你代码吧
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package com.moliying.ui;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.List;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.Arrays;
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 Login {
private JFrame frame = new JFrame("登录");
private Container c = frame.getContentPane();
private JTextField username = new JTextField();
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JButton cancel = new JButton("取消");
public Login() {
frame.setSize(300, 200);
frame.setBounds(450, 300, 300, 200);
c.setLayout(new BorderLayout());
initFrame();
frame.setVisible(true);
}
private void initFrame() {
// 顶部
JPanel titlePanel = new JPanel();
titlePanel.setLayout(new FlowLayout());
titlePanel.add(new JLabel("系统管理员登录"));
c.add(titlePanel, "North");
// 中部表单
JPanel fieldPanel = new JPanel();
fieldPanel.setLayout(null);
JLabel a1 = new JLabel("用户名:");
a1.setBounds(50, 20, 50, 20);
JLabel a2 = new JLabel("密 码:");
a2.setBounds(50, 60, 50, 20);
fieldPanel.add(a1);
fieldPanel.add(a2);
username.setBounds(110, 20, 120, 20);
password.setBounds(110, 60, 120, 20);
fieldPanel.add(username);
fieldPanel.add(password);
c.add(fieldPanel, "Center");
// 底部按钮
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(ok);
buttonPanel.add(cancel);
c.add(buttonPanel, "South");
ok.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println(username.getText().toString());
}
});
cancel.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.setVisible(false);
}
});
}
public static void main(String[] args) {
// new Login();
String ss = "abbabbbaabbbccba";
System.out.println(ss.split("b").length);
}
}
java编写一个登陆和注册信息的源代码,最简单的就可以,不需要数据库的那种
你这个不用数据库真的是有点难搞
我写了个用集合存储的，你看看，能否帮上你
java.util.ListString list = new ArrayListString();
list.add("qq=123");//存储的时候用（用户名=密码）的形式
list.add("ww=456");
String username = "qq";
String password = "123";
for (int i = 0; i list.size(); i++) {
String num = username +"="+password;
if(num.equals(list.get(i))){
System.out.println("登录成功");
break;
}
}
如何用Java编写用户注册界面？
界面建议用可视化来做，美观且便捷。下面这个是完全用代码写的，仅供参考。
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.sql.*;
public class Register extends JFrame {
JLabel jl1 = new JLabel("用户名");
JTextField jt1 = new JTextField();
JLabel jl2 = new JLabel("邮箱");
JTextField jt2 = new JTextField();
JLabel jl3 = new JLabel("密码");
JPasswordField jpw1 = new JPasswordField();
JLabel jl4 = new JLabel("密码确认");
JPasswordField jpw2 = new JPasswordField();
JButton register = new JButton("注册");
JButton clean = new JButton("清空");
public Register(){
setLayout(new GridLayout(5,2));
add(jl1);
add(jt1);
add(jl2);
add(jt2);
add(jl3);
add(jpw1);
add(jl4);
add(jpw2);
add(register);
add(clean);
String name = jt1.getText();
String email = jt2.getText();
String pw = jpw1.getText();
register.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost/db","root","");
Statement sta = con.createStatement();
sta.executeUpdate("INSERT INTO register VALUES(name,email,pw)");
JOptionPane.showMessageDialog(null,"注册成功","提示",JOptionPane.INFORMATION_MESSAGE);
}
catch(Exception ex){
ex.getStackTrace();
}
}
});
clean.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
jt1.setText("");
jt2.setText("");
jpw1.setText("");
jpw2.setText("");
}
});
}
public static void main(String[] args){
Register frame = new Register();
frame.setTitle("用户注册");
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400,400);
frame.setVisible(true);
}
}
用java写一个手机商城注册界面代码
这篇文章主要介绍了java通过JFrame做一个登录系统的界面完整代码示例，具有一定借鉴价值，需要的朋友可以参考下。
在java的JFrame内通过创建匿名对象的方式做登录界面
package com.sxt;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class LoginFrame extends JFrame{
JTextField txtname=new JTextField();
JPasswordField txtpass=new JPasswordField();
JButton bl=new JButton("登录");
JButton bg=new JButton("关闭");
//构造无参构造器把主要的方法放在构造器里,然后在main方法里面调
public LoginFrame(){
setBounds(25,25,250,250);
Container c = getContentPane();
c.setLayout(new GridLayout(4,2,10,10));
c.add(new JLabel("用户名"));
c.add(txtname);
c.add(new JLabel("密码"));
c.add(txtpass);
c.add(bl);
c.add(bg);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
//注意：此处是匿名内部类
bg.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
System.exit(0);
}
}
);
//注意：此处是匿名内部类
bl.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
文章标题：java编写注册代码,Java代码编写
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