spend.java

是一个描述饭卡管理系统的软件工程作业,里面有各个阶段的文档介绍.

/*
 * Spend.java
 *
 * Created on 2007年7月14日, 下午5:08
 */

package 饭卡管理系统;
import java.sql.*;
import   javax.swing.JOptionPane; 
import java.util.*;



/**
 *
 * @author  BT之家会员
 */
public class Spend extends javax.swing.JDialog {
    String nows="0";
    String sums="0";
    int ops = 0;
    public static String result="0";
    
    /** Creates new form Spend */
    public Spend(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        initComponents();
        
        XFWB.setVisible(false);
         this.jPanel1.setVisible(false);
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jPanel1 = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();
        jButton4 = new javax.swing.JButton();
        jButton5 = new javax.swing.JButton();
        jButton6 = new javax.swing.JButton();
        jButton7 = new javax.swing.JButton();
        jButton8 = new javax.swing.JButton();
        jButton9 = new javax.swing.JButton();
        jButton10 = new javax.swing.JButton();
        jButton11 = new javax.swing.JButton();
        jButton12 = new javax.swing.JButton();
        jButton13 = new javax.swing.JButton();
        jButton14 = new javax.swing.JButton();
        jButton15 = new javax.swing.JButton();
        Now = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        Sum = new javax.swing.JTextField();
        Jisuan = new javax.swing.JTextField();
        xiaofeiB = new javax.swing.JButton();
        jButton17 = new javax.swing.JButton();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jButton18 = new javax.swing.JButton();
        jPanel2 = new javax.swing.JPanel();
        jButton19 = new javax.swing.JButton();
        jButton20 = new javax.swing.JButton();
        jButton21 = new javax.swing.JButton();
        jButton22 = new javax.swing.JButton();
        jButton23 = new javax.swing.JButton();
        jButton24 = new javax.swing.JButton();
        jButton27 = new javax.swing.JButton();
        jButton16 = new javax.swing.JButton();
        Op = new javax.swing.JTextField();
        jPanel3 = new javax.swing.JPanel();
        Ids = new javax.swing.JTextField();
        jLabel5 = new javax.swing.JLabel();
        jButton26 = new javax.swing.JButton();
        XFWB = new javax.swing.JLabel();
        jButton25 = new javax.swing.JButton();
        XFWB1 = new javax.swing.JLabel();
        DjCheck = new javax.swing.JCheckBox();
        Dingjia = new javax.swing.JTextField();

        getContentPane().setLayout(null);

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        jPanel1.setLayout(null);

        jPanel1.setBorder(new javax.swing.border.TitledBorder(""));
        jButton1.setText("1");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton1);
        jButton1.setBounds(20, 180, 50, 23);

        jButton2.setText("2");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton2);
        jButton2.setBounds(70, 180, 50, 23);

        jButton3.setText("3");
        jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton3ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton3);
        jButton3.setBounds(120, 180, 50, 23);

        jButton4.setText("4");
        jButton4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton4ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton4);
        jButton4.setBounds(20, 150, 50, 23);

        jButton5.setText("5");
        jButton5.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton5ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton5);
        jButton5.setBounds(70, 150, 50, 23);

        jButton6.setText("6");
        jButton6.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton6ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton6);
        jButton6.setBounds(120, 150, 50, 23);

        jButton7.setText("7");
        jButton7.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton7ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton7);
        jButton7.setBounds(20, 120, 50, 23);

        jButton8.setText("8");
        jButton8.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton8ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton8);
        jButton8.setBounds(70, 120, 50, 23);

        jButton9.setText("9");
        jButton9.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton9ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton9);
        jButton9.setBounds(120, 120, 50, 23);

        jButton10.setText("0");
        jButton10.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton10ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton10);
        jButton10.setBounds(20, 210, 50, 23);

        jButton11.setText(".");
        jPanel1.add(jButton11);
        jButton11.setBounds(70, 210, 50, 23);

        jButton12.setText("+");
        jButton12.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton12ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton12);
        jButton12.setBounds(180, 150, 70, 23);

        jButton13.setText("-");
        jButton13.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton13ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton13);
        jButton13.setBounds(180, 180, 70, 23);

        jButton14.setText("=");
        jButton14.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton14ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton14);
        jButton14.setBounds(120, 210, 130, 23);

        jButton15.setText("*");
        jButton15.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton15ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton15);
        jButton15.setBounds(180, 120, 70, 23);

        Now.setEditable(false);
        Now.setText("0");
        jPanel1.add(Now);
        Now.setBounds(60, 60, 190, 20);

        jLabel1.setText("\u6d88\u8d39");
        jPanel1.add(jLabel1);
        jLabel1.setBounds(10, 60, 42, 15);

        jLabel2.setText("\u5361\u5269\u4f59");
        jPanel1.add(jLabel2);
        jLabel2.setBounds(10, 30, 50, 15);

        Sum.setEditable(false);
        Sum.setText("0");
        jPanel1.add(Sum);
        Sum.setBounds(60, 30, 190, 20);

        Jisuan.setEditable(false);
        jPanel1.add(Jisuan);
        Jisuan.setBounds(290, 30, 50, 20);

        xiaofeiB.setText("\u6d88\u8d39");
        xiaofeiB.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                xiaofeiBActionPerformed(evt);
            }
        });

        jPanel1.add(xiaofeiB);
        xiaofeiB.setBounds(260, 183, 120, 50);

        jButton17.setText("\u6062\u590d\u4e0a\u6b21\u663e\u793a");
        jButton17.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton17ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton17);
        jButton17.setBounds(260, 150, 120, 23);

        jLabel3.setText("\u5143");
        jPanel1.add(jLabel3);
        jLabel3.setBounds(260, 30, 20, 15);

        jLabel4.setText("\u5143");
        jPanel1.add(jLabel4);
        jLabel4.setBounds(260, 60, 20, 15);

        jButton18.setText("\u6e05\u5c4f");
        jButton18.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton18ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton18);
        jButton18.setBounds(260, 120, 120, 23);

        jPanel2.setLayout(null);

        jPanel2.setBorder(new javax.swing.border.TitledBorder("\u5e38\u7528"));
        jButton19.setText("0.25");
        jPanel2.add(jButton19);
        jButton19.setBounds(30, 30, 60, 23);

        jButton20.setText("0.5");