set.java

酒店管理系统（单机版）,根据酒店的日常业务运作而设计

package cg;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

//系统设置模块
public class Set extends JFrame implements ActionListener{ 
    
    private JButton btnLock,btnLogin,btnExit,btnBack;
    
    public Set() {
        
        java.awt.Container mm = this.getContentPane();
        mm.setLayout(null);
        
        btnLock = new JButton("锁定系统");
	btnLock.setFont(new java.awt.Font("Dialog", Font.BOLD, 20));
	btnLock.setHorizontalAlignment(SwingConstants.CENTER);
	btnLock.setBounds(new Rectangle(82,60,200,29));
        
        btnLogin = new JButton("重新登陆");
	btnLogin.setFont(new java.awt.Font("Dialog", Font.BOLD, 20));
	btnLogin.setHorizontalAlignment(SwingConstants.CENTER);
	btnLogin.setBounds(new Rectangle(320,60,200,29));
        
        btnExit = new JButton("退出");
	btnExit.setFont(new java.awt.Font("Dialog", Font.BOLD, 20));
	btnExit.setHorizontalAlignment(SwingConstants.CENTER);
	btnExit.setBounds(new Rectangle(100,160,200,29));
		
		btnBack = new JButton("返回");
    btnBack.setFont(new java.awt.Font("Dialog",Font.BOLD,20));
	btnBack.setHorizontalAlignment(SwingConstants.CENTER);
	btnBack.setBounds(new Rectangle(320,160,200,29));
	    
        mm.add(btnLock);
        mm.add(btnLogin);
        mm.add(btnExit);
        mm.add(btnBack);
        
        btnLock.addActionListener(this);
        btnLogin.addActionListener(this);
        btnExit.addActionListener(this);
        btnBack.addActionListener(this);
        
        btnLock.setActionCommand("lock");
        btnLogin.setActionCommand("login");
        btnExit.setActionCommand("exit");
        btnBack.setActionCommand("back");
        
    this.setTitle("系统设置");
	this.setSize(600,300);
	this.setResizable(false);        		
	this.setLocationRelativeTo(this);//居中显示	
    this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);
	this.setVisible(true);
         
    }
    public void actionPerformed(java.awt.event.ActionEvent e){
        String str = e.getActionCommand();
        if(str.equals("lock")){
            this.requestFocus(true);
        }
        if(str.equals("login")){
            new LoginFrame();          
            this.dispose();
		}
        if(str.equals("exit")){        	 	
        	System.exit(0);
        }
        if(str.equals("back")){
        	new MainFrame();
        	this.dispose();
        }
	}
}