student_manage.zip_swing 学生管理_swing学生系统

import java.awt.BorderLayout; import java.awt.Choice; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; public class login extends JFrame implements ActionListener { JLabel type; Choice ctype; JLabel zh; JTextField zhtf; JLabel mm; JTextField mmtf; JButton sure; JButton exit; ImageIcon image; JLabel imageLabel; int lxflag=0; //账号类型 String zhcon; //账号存储 String mmcon; //密码存储 login(String s) { setTitle(s); image=new ImageIcon("2.jpg"); imageLabel = new JLabel(image); imageLabel.setSize(10, 10); ctype=new Choice(); type=new JLabel("账号类型"); mm=new JLabel("密码"); zh=new JLabel("账号"); zhtf=new JTextField(15); mmtf=new JTextField(15); sure=new JButton("登录"); exit=new JButton("退出"); String lx[]={"学生账号","教师账号","管理员账号","游客账号"}; for(int i=0;i<lx.length;i++) { ctype.add(lx[i]); } JPanel p=new JPanel(); p.setLayout(new GridLayout(3, 2)); p.add(type); p.add(ctype); p.add(zh); p.add(zhtf); p.add(mm); p.add(mmtf); JPanel p2=new JPanel(); p2.setLayout(new GridLayout(1,2)); p2.add(sure); p2.add(exit); JPanel p3=new JPanel(); p3.add(imageLabel); add(p,BorderLayout.CENTER); add(p2,BorderLayout.SOUTH); add(p3,BorderLayout.NORTH); setBounds(460, 100, 50, 60); setVisible(true); pack(); ctype.addItemListener(new lxlistener()); exit.addActionListener(new tclistener()); sure.addActionListener(new dllistener()); } @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub }; class lxlistener implements ItemListener { public void itemStateChanged(ItemEvent e) { //System.out.println(bolder.getSelectedItem()); if(ctype.getSelectedItem()=="学生账号") lxflag=0; else if(ctype.getSelectedItem()=="教师账号") lxflag=1; else if(ctype.getSelectedItem()=="管理员账号") lxflag=2; else if(ctype.getSelectedItem()=="游客账号") lxflag=3; } } class tclistener implements ActionListener { public void actionPerformed(ActionEvent e) { System.exit(0); } } class dllistener implements ActionListener { public void actionPerformed(ActionEvent e) { zhcon=zhtf.getText(); //账号 mmcon=mmtf.getText(); //密码 if(lxflag==0) //0代表学生 { } else if(lxflag==1)//1代表教师 { } else if(lxflag==2)//2代表管理员 { } else if(lxflag==3)//3代表游客 { } } } }