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1、packagecom.lb.view;importjava.awt.importjava・eiwt・event・*;importjavax.swing.*;publicclassLoginextendsJFrame{privateTextFieldfl;privateTextFieldf2;privatoJButtonbl;privateJButtonb2;privateJButtonb3;〃登陆界面publicLogin(){Containercp=getContentPano();//容器cp.setBackground(Color,cyan);cp.set
2、Layout(newGridLayout(4,1));//四行一列布局Panelpl二newPanel();Panelp2=newPanel();Panelp3二newPanel();Panelp4=newPanel();fl=newTextField(15);f2=newTextField仃5);f2.setEchoCharC*');〃回显字符为*bl=newJButton登录“)；b2=newJButton(，z重置“)；b3=newJButton(，z退出“);pl.add(newLabel(z，"));p2.add(newLabel(zz用户名"))；p
3、2.add(f1);p3.add(newLabel(〃密码〃));p3.add(f2);p4.add(bl);p4.add(b2);p4.add(b3);cp.add(pl);cp.add(p2);cp.add(p3);cp.add(p4);bl.addActionListcnor(nowEnter());b2.addActionListener(newReWrite());b3.addActionListener(newCloseO);}classEnterimplementsActionListener{publicvoidactionPerformed(A
4、ctionEvente)if((f1.getText()).equals(〃任艳云“)&&(f2.getText()).equals("renl2"))XueShengframe1=newXueShengO;framel.setBounds(200,200,400,400);frame1.sotVisiblo(truo);}elseJOptionPane.showMessageDialog(null,用户名或密码错误，请重新登录!”);}}classRcWritcimplcmontsActionListener{publicvoidactionPerformed
5、(ActionEvente){fl.setTextC");f2.setText("");fl.requostFocus();}}classCloseimplementsActionListener{publicvoidactionPerformed(ActionEvente){JButtonbt二(JButton)e.getSource();if(bt==b3){System,exit(0);}}}//主函数程序开始publicstaticvoidmain(String[]args){Loginlog二newLogin();log.setTitle("系统登录"
6、);log.setBounds(200,200,300,300);log.setBackground(Color,red);log.setVisible(true);}//信息管理界面内部类进行初始化和保存classXueShengextendsJFrameimplementsActionListener{privateJButtonex,zj,tc,sc,xg,tj;publicXueShengO{Containerc=this.gotContentPanc();c.setLayout(newGridLayout(4,1));c.setBackground(C
7、oIor.cyan);c.setFont(newFont("true",Font.TRUETYPE_FONT,13));JPanelpanel1=newJPanel();panel1.sotBackground(Color,cyan);JLabellabel1=newJLabel("欢迎登入成绩管理主页，z,SwingConstants.CENTER);label1.setFont(newFont("true",Font.TRUETYPEFONT,15));panel1.add(labell);JPeinelpanel2=newJPanel();panel2.s
8、etBackground
