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.

        jPanel2.add(jButton20);
        jButton20.setBounds(30, 60, 60, 23);

        jButton21.setText("0.75");
        jPanel2.add(jButton21);
        jButton21.setBounds(30, 90, 60, 23);

        jButton22.setText("1.2");
        jPanel2.add(jButton22);
        jButton22.setBounds(30, 120, 60, 23);

        jButton23.setText("2.4");
        jPanel2.add(jButton23);
        jButton23.setBounds(30, 150, 60, 23);

        jButton24.setText("5.3");
        jPanel2.add(jButton24);
        jButton24.setBounds(30, 180, 60, 23);

        jPanel1.add(jPanel2);
        jPanel2.setBounds(380, 10, 200, 220);

        jButton27.setText("\u540e\u9000");
        jButton27.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton27ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton27);
        jButton27.setBounds(180, 90, 70, 23);

        jButton16.setText("\u5173\u8d26\u6237");
        jButton16.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton16ActionPerformed(evt);
            }
        });

        jPanel1.add(jButton16);
        jButton16.setBounds(260, 90, 120, 23);

        Op.setEditable(false);
        jPanel1.add(Op);
        Op.setBounds(310, 60, 30, 20);

        getContentPane().add(jPanel1);
        jPanel1.setBounds(0, 230, 590, 250);

        jPanel3.setLayout(null);

        jPanel3.setBorder(new javax.swing.border.TitledBorder(null, "\u5b66\u751f\u5237\u5361"));
        Ids.setText("0");
        jPanel3.add(Ids);
        Ids.setBounds(100, 60, 90, 20);

        jLabel5.setText("\u5b66\u751f\u5361\u53f7ID");
        jPanel3.add(jLabel5);
        jLabel5.setBounds(20, 60, 70, 15);

        jButton26.setText("\u67e5\u8be2\u5b66\u751f\u5361\u4f59\u989d");
        jButton26.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton26ActionPerformed(evt);
            }
        });

        jPanel3.add(jButton26);
        jButton26.setBounds(310, 60, 160, 23);

        XFWB.setText("\u6d88\u8d39\u5b8c\u6bd5\uff0c\u5361\u5269\u4f59\u5982\u4e0b\u3002\u5982\u679c\u8981\u7ee7\u7eed\u6d88\u8d39\u8bf7\u91cd\u65b0\u5237\u5361\uff01");
        jPanel3.add(XFWB);
        XFWB.setBounds(20, 100, 340, 15);

        getContentPane().add(jPanel3);
        jPanel3.setBounds(0, 50, 590, 140);

        jButton25.setText("\u8fd4\u56de\u767b\u9646");
        jButton25.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton25ActionPerformed(evt);
            }
        });
        jButton25.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton25MouseClicked(evt);
            }
        });

        getContentPane().add(jButton25);
        jButton25.setBounds(470, 500, 100, 23);

        XFWB1.setText("\u6b22\u8fce\u5149\u4e34\u996d\u5361\u6d88\u8d39\u754c\u9762");
        getContentPane().add(XFWB1);
        XFWB1.setBounds(180, 30, 140, 15);

        DjCheck.setText("\u5b9a\u4ef7");
        DjCheck.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                DjCheckItemStateChanged(evt);
            }
        });

        getContentPane().add(DjCheck);
        DjCheck.setBounds(100, 200, 60, 23);

        Dingjia.setEditable(false);
        Dingjia.setText("0");
        Dingjia.setEnabled(false);
        getContentPane().add(Dingjia);
        Dingjia.setBounds(160, 200, 80, 20);

        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-600)/2, (screenSize.height-563)/2, 600, 563);
    }
    // </editor-fold>//GEN-END:initComponents

    private void jButton25ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton25ActionPerformed
// TODO 将在此处添加您的处理代码：
    }//GEN-LAST:event_jButton25ActionPerformed

    private void xiaofeiBActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_xiaofeiBActionPerformed

        try{       
            this.result=String.valueOf((Integer.parseInt(Sum.getText()) - Integer.parseInt(Now.getText())));
            String sql = "update card_info set sum = "+result+" where id = "+Ids.getText();    
            if(Main.state.executeUpdate(sql)==0){           
               JOptionPane.showMessageDialog(null,"消费失败");
           }else{
           this.nows =Now.getText();
           this.sums =Sum.getText();
            JOptionPane.showMessageDialog(null,"消费完毕，卡剩余"+ result +"。如果要继续消费请在10秒内操作，只后自动关闭帐户");
           Sum.setText(result);
           
            }
            
        }catch(SQLException ex){ System.err.println("aq.executeQuery:"+ex.getMessage());}
        
        
    }//GEN-LAST:event_xiaofeiBActionPerformed

    private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton14ActionPerformed
    if(Jisuan.getText().compareTo("") == 0){
            Jisuan.setText(Now.getText());
            Now.setText("0");
            
        }
        else {
            switch(ops){
                case 3:
                    int a= 0;
                    a=Integer.parseInt(Jisuan.getText()) *  Integer.parseInt(Now.getText());
                    if(a>999){
                        JOptionPane.showMessageDialog(null,"计算量超过消费最大值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) *  Integer.parseInt(Now.getText())));                        
                        Now.setText(Jisuan.getText());
                        
                    } 
                    break;
                   
                case 2:
                    int b=0;
                    b = Integer.parseInt(Jisuan.getText()) +  Integer.parseInt(Now.getText());
                    if(b>999){
                        JOptionPane.showMessageDialog(null,"计算量超过消费最大值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) +  Integer.parseInt(Now.getText())));                        
                        Now.setText(Jisuan.getText());
                    } 
                    break;
                   
                case 1:
                    int c=1;
                    c=Integer.parseInt(Jisuan.getText()) -  Integer.parseInt(Now.getText());
                    if(c>999||c<=0){
                        JOptionPane.showMessageDialog(null,"计算量超过消费有效值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) -  Integer.parseInt(Now.getText())));                        
                        Now.setText(Jisuan.getText());
                    } 
                    break;
            
            }
            
   
            
        }
         ops = 0 ;
        Op.setText("=");
    }//GEN-LAST:event_jButton14ActionPerformed

    private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton13ActionPerformed
    if(Jisuan.getText().compareTo("") == 0){
            Jisuan.setText(Now.getText());
            Now.setText("0");
            
        }
        else {
            switch(ops){
                case 3:
                    int a= 0;
                    a=Integer.parseInt(Jisuan.getText()) *  Integer.parseInt(Now.getText());
                    if(a>999){
                        JOptionPane.showMessageDialog(null,"计算量超过消费最大值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) *  Integer.parseInt(Now.getText())));                        
                        Now.setText("0");
                    } 
                    break;
                   
                case 2:
                    int b=0;
                    b = Integer.parseInt(Jisuan.getText()) +  Integer.parseInt(Now.getText());
                    if(b>999){
                        JOptionPane.showMessageDialog(null,"计算量超过消费最大值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) +  Integer.parseInt(Now.getText())));                        
                        Now.setText("0");
                    } 
                    break;
                   
                case 1:
                    int c=1;
                    c=Integer.parseInt(Jisuan.getText()) -  Integer.parseInt(Now.getText());
                    if(c>999||c<=0){
                        JOptionPane.showMessageDialog(null,"计算量超过消费有效值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) -  Integer.parseInt(Now.getText())));                        
                        Now.setText("0");
                    } 
                    break;
                   
                    
            
            
            }
            
   
            
        }
         ops = 1 ;
        Op.setText("-");
    }//GEN-LAST:event_jButton13ActionPerformed

    private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton12ActionPerformed


        if(Jisuan.getText().compareTo("") == 0){
            Jisuan.setText(Now.getText());
            Now.setText("0");
            
        }
        else {
            switch(ops){
                case 3:
                    int a= 0;
                    a=Integer.parseInt(Jisuan.getText()) *  Integer.parseInt(Now.getText());
                    if(a>999){
                        JOptionPane.showMessageDialog(null,"计算量超过消费最大值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) *  Integer.parseInt(Now.getText())));                        
                        Now.setText("0");
                    } 
                    break;
                   
                case 2:
                    int b=0;
                    b = Integer.parseInt(Jisuan.getText()) +  Integer.parseInt(Now.getText());
                    if(b>999){
                        JOptionPane.showMessageDialog(null,"计算量超过消费最大值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) +  Integer.parseInt(Now.getText())));                        
                        Now.setText("0");
                    } 
                    break;
                   
                case 1:
                    int c=1;
                    c=Integer.parseInt(Jisuan.getText()) -  Integer.parseInt(Now.getText());
                    if(c>999||c<=0){
                        JOptionPane.showMessageDialog(null,"计算量超过消费有效值！");
                    }else{
                        Jisuan.setText(String.valueOf(Integer.parseInt(Jisuan.getText()) -  Integer.parseInt(Now.getText())));                        
                        Now.setText("0");
                    } 
                    break;
                   
                    
            
            
            }
            
   
            
        }
         ops = 2 ;
        Op.setText("+");
    }//GEN-LAST:event_jButton12ActionPerformed

    public void closeStu_Info(){
        
        Sum.setText("0");