java_学生管理系统_半成

来源：互联网发布：知美医疗美容怎么样编辑：程序博客网时间：2024/05/21 13:54
package com.Student;import java.awt.*;import java.awt.event.*;import javax.swing.*;/** * @author 菊丿外人 *功能：学生管理系统_界面 */public class Student_JFrame extends JFrame implements ActionListener{JPanel jp1=null;JPanel jp2=null;JPanel jp3=null;JButton jb1,jb2;//标签JLabel jl0,jl1,jl2,jl3,jl4;JTextField jtf = null;JPasswordField jpf = null;public static void main(String[] args) {// TODO 自动生成的方法存根Student_JFrame student_JFrame = new Student_JFrame();}Student_JFrame(){jp1 = new JPanel();jp2 = new JPanel();jp3 = new JPanel();jl0 = new JLabel(new ImageIcon("img/ll.jpg"));jb2 = new JButton("登  录");jb2.setSize(200, 30);jb2.setBackground(Color.blue);jtf = new JTextField(10);jpf = new JPasswordField(10);jl1 = new JLabel("用户名");jl2 = new JLabel("密   码");jl3 = new JLabel("找回密码");jl4 = new JLabel("注册");this.setLayout(new GridLayout(3,1));//注册监听事件jb2.addActionListener(this);jb2.setActionCommand("登  录");//加入各个组件jp1.add(jl0);jp2.add(jl1);jp2.add(jtf);jp2.add(jl3);jp2.add(jl2);jp2.add(jpf);jp2.add(jl4);jp3.add(jb2);this.add(jp1);this.add(jp2);this.add(jp3);this.setSize(300,300);this.setTitle("学生管理系统登录界面");this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);}@Overridepublic void actionPerformed(ActionEvent g) {// TODO 自动生成的方法存根if(g.getActionCommand().equals("登  录")){String name = null;name =new String(jtf.getText());String psw = null;psw = new String(jpf.getPassword());System.out.println(name);System.out.println(psw);if(name.length()==0){System.out.println("没有输入名称");}}//可以关闭当前窗口this.dispose();new Student_JFrame();}}
0 0