loginsystem.java~1~

实现了一个简单的餐饮行业进销存系统

package com.csbook.restaurant;

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

public class LoginSystem extends JDialog {
  JPanel northPanel = new JPanel();
  JPanel centerPanel = new JPanel();
  JPanel southPanel = new JPanel();
  FlowLayout flowLayout1 = new FlowLayout();
  GridLayout gridLayout1 = new GridLayout();
  FlowLayout flowLayout2 = new FlowLayout();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField username = new JTextField();
  JPasswordField password = new JPasswordField();
  JButton login = new JButton();

  public LoginSystem(Frame frame, String title, boolean modal) {
    super(frame, title, modal);
    try {
      jbInit();
      pack();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  public LoginSystem() {
    this(null, "", false);
  }
  private void jbInit() throws Exception {
    northPanel.setLayout(flowLayout1);
    centerPanel.setLayout(gridLayout1);
    gridLayout1.setColumns(2);
    gridLayout1.setRows(2);
    southPanel.setLayout(flowLayout2);
    jLabel1.setText("请输入用户名和密码");
    jLabel2.setText("用户名");
    jLabel3.setText("密码");
    username.setText("jTextField1");
    password.setText("jPasswordField1");
    login.setText("登陆系统");
    this.getContentPane().setLayout(null);
    southPanel.setBounds(new Rectangle(0, 273, 435, 35));
    centerPanel.setBounds(new Rectangle(0, 26, 435, 247));
    northPanel.setMaximumSize(new Dimension(32767, 32767));
    northPanel.setBounds(new Rectangle(0, 0, 435, 26));
    this.getContentPane().add(northPanel, null);
    this.getContentPane().add(centerPanel, null);
    this.getContentPane().add(southPanel, null);
    northPanel.add(jLabel1, null);
    centerPanel.add(jLabel2, null);
    centerPanel.add(username, null);
    centerPanel.add(jLabel3, null);
    centerPanel.add(password, null);
    southPanel.add(login, null);
  }
}