zhuanzhang.java~18~

一個模仿ATM自動提款机功能的系統,

package MainFrame;
import java.awt.*;
import javax.swing.*;
import com.borland.jbcl.layout.XYLayout;
import com.borland.jbcl.layout.*;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.ResultSet;

public class ZhuanZhang extends JFrame {
    XYLayout xYLayout1 = new XYLayout();
    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    JLabel jLabel3 = new JLabel();
    JLabel jLabel4 = new JLabel();
    JTextField jTextField1 = new JTextField();
    JTextField jTextField2 = new JTextField();
    JTextField jTextField3 = new JTextField();
    JButton jButton1 = new JButton();
    JButton jButton2 = new JButton();
    public ZhuanZhang() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        getContentPane().setLayout(xYLayout1);
        jLabel1.setFont(new java.awt.Font("华文彩云", Font.BOLD, 25));
        jLabel1.setForeground(Color.green);
        jLabel1.setText("转帐操作界面");
        jButton2.addActionListener(new ZhuanZhang_jButton2_actionAdapter(this));
        this.getContentPane().add(jLabel1, new XYConstraints(111, 22, 225, 40));
        jButton2.setFont(new java.awt.Font("宋体", Font.BOLD, 15));
        jButton2.setText("取消");
        jButton1.setFont(new java.awt.Font("宋体", Font.BOLD, 15));
        jButton1.setText("交易");
        jButton1.addActionListener(new ZhuanZhang_jButton1_actionAdapter(this));
        xYLayout1.setWidth(400);
        xYLayout1.setHeight(326);
        jLabel4.setFont(new java.awt.Font("宋体", Font.BOLD, 18));
        jLabel4.setText("转出金额");
        jLabel3.setFont(new java.awt.Font("宋体", Font.BOLD, 18));
        jLabel3.setText("转出帐号ID");
        this.getContentPane().add(jLabel2, new XYConstraints(20, 65, 100, 35));
        this.getContentPane().add(jLabel3, new XYConstraints(20, 120, 100, 35));
        this.getContentPane().add(jLabel4, new XYConstraints(20, 175, 100, 35));
        this.getContentPane().add(jTextField1,
                                  new XYConstraints(140, 70, 170, 35));
        this.getContentPane().add(jTextField2,
                                  new XYConstraints(140, 124, 170, 35));
        this.getContentPane().add(jTextField3,
                                  new XYConstraints(140, 175, 170, 35));
        this.getContentPane().add(jButton1, new XYConstraints(61, 269, 86, 38));
        this.getContentPane().add(jButton2, new XYConstraints(231, 269, 85, 37));
        jLabel2.setFont(new java.awt.Font("宋体", Font.BOLD, 18));
        jLabel2.setText("转入帐号ID");
    }

    public static void main(String[] args) {
        ZhuanZhang z = new ZhuanZhang();
           z.setBounds(200,200,400,400);
           z.setVisible(true);

    }

    public void jButton1_actionPerformed(ActionEvent e) {
             try {String a=jTextField1.getText();
                  String b=jTextField2.getText();
                  String c=jTextField3.getText();
          if(a.equals("")){
               JOptionPane.showMessageDialog(null,"沒有輸入转入ID！","輸入錯誤",JOptionPane.ERROR_MESSAGE);}
          else {if(b.equals("")){
                   JOptionPane.showMessageDialog(null,"沒有輸出转入ID！","輸入錯誤",JOptionPane.ERROR_MESSAGE);}
          else {  if(c.equals("")){
                       JOptionPane.showMessageDialog(null,"沒有輸入金额","輸入錯誤",JOptionPane.ERROR_MESSAGE);}
                else{ Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
                  Connection conn = DriverManager.getConnection(
                                    "jdbc:microsoft:sqlserver://localhost:1433;databaseName=ATM",
                                    "sa", "huang100");
                     Statement   Stat = conn.createStatement();
                     ResultSet  rs1 = Stat.executeQuery("select * from YH where userpassword='"+ a+"'");
                     if(rs1.next()){
                         // JOptionPane.showMessageDialog(null,"操作成功");
                          ResultSet  rs2 = Stat.executeQuery("select * from YH where userpassword='"+ b+"'");
                         if(rs2.next()){
                              JOptionPane.showMessageDialog(null,"操作成功");
                              Stat.executeUpdate("update YH set qian=qian-'"+c+"' where userpassword='"+b+"'");
                              Stat.executeUpdate("update YH set qian=qian+'"+c+"' where userpassword='"+a+"'");
                              JOptionPane.showMessageDialog(null,"操作成功");

                     }}}
           }
          }

             } catch (Exception ex) {

             }
    }

    public void jButton2_actionPerformed(ActionEvent e) {
        ZhuanZhang z = new ZhuanZhang();
        z.setBounds(200,200,400,400);
        z.setVisible(true);

    }
}


class ZhuanZhang_jButton2_actionAdapter implements ActionListener {
    private ZhuanZhang adaptee;
    ZhuanZhang_jButton2_actionAdapter(ZhuanZhang adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton2_actionPerformed(e);
    }
}


class ZhuanZhang_jButton1_actionAdapter implements ActionListener {
    private ZhuanZhang adaptee;
    ZhuanZhang_jButton1_actionAdapter(ZhuanZhang adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton1_actionPerformed(e);
    }
}