mainframe.java

一个JAVA选人界面

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
///这是一个主界面的类。
///student是指进入学生信息系统的界面控件
///teacher是指进入教师信息系统的界面控件
///leader是指进入领导信息系统的界面控件
///后面紧接着就是这个三个控件的动作事件的监视方法，分别是进入三个不同的系统
class mainframe 
{
    static final int WIDTH=400;
    static final int HEIGHT=200;
    JFrame buttonframe;
    public mainframe() 
    {
        buttonframe=new JFrame();   
        buttonframe.setTitle("学校信息管理系统");
        buttonframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        buttonframe.setSize(WIDTH,HEIGHT);
        Toolkit kit=Toolkit.getDefaultToolkit();
        Dimension screenSize=kit.getScreenSize();
        int width=screenSize.width;
        int height=screenSize.height;
        int x=(width-WIDTH)/2;
        int y=(height-HEIGHT)/2;
        buttonframe.setLocation(x,y);
        buttonframe.setVisible(true);
        buttonframe.setResizable(false);
        JButton student=new JButton("学生信息系统模块");
        JButton teacher=new JButton("教师信息系统模块");
        JButton leader=new JButton("学校领导信息系统模块"); 
        buttonframe.add(student);
        buttonframe.add(teacher);
        buttonframe.add(leader);
        buttonframe.setLayout(new GridLayout(3,1));
        student.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent Event) 
            {
                studentmanageframe studentframe=new  studentmanageframe();
            }
        });
        teacher.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent Event) 
            {
                teachermanageframe teacherframe=new  teachermanageframe();
            }
        });
        leader.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent Event) 
            {
                leadermanageframe leaderframe=new  leadermanageframe();
            }
        });
    }
}