checkout.java~26~

基于java+sql2000超市货品进销存管理

package supermarket;

import javax.swing.*;
import java.awt.*;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import com.borland.jbcl.layout.XYLayout;
import com.borland.jbcl.layout.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.NumberFormatException;

public class Checkout
    extends JDialog {
  public Checkout(String shopname, boolean huiyuan, float zhek, float price) {
    try {
      jbInit();
      if (huiyuan) {
        if (zhek == 9.5) {
          shopname += "该会员为普通会员\n折扣率为：95折\n";
        }
        else {
          shopname += "该会员为高级会员\n折扣率为：9折\n";
        }
      }
      this.price = price;
      shopname += "本次消费：" + price + "元";
      taxdisplay.setText(shopname);
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
    lbltitle.setFont(new java.awt.Font("Dialog", Font.PLAIN, 25));
    lbltitle.setText("结          帐");
    lbltitle.setBounds(new Rectangle(137, 5, 127, 48));
    this.getContentPane().setLayout(null);
    txtmoney.setFont(new java.awt.Font("Dialog", Font.PLAIN, 20));
    txtmoney.setText("");
    txtmoney.setBounds(new Rectangle(27, 318, 379, 25));
    jButton1.setBounds(new Rectangle(27, 354, 85, 29));
    jButton1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 18));
    jButton1.setText("找补");
    jButton1.addActionListener(new Checkout_jButton1_actionAdapter(this));
    jButton2.setBounds(new Rectangle(321, 353, 85, 29));
    jButton2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 18));
    jButton2.setText("取消");
    jButton2.addActionListener(new Checkout_jButton2_actionAdapter(this));
    jScrollPane1.setBounds(new Rectangle(26, 83, 380, 207));
    lblqingdan.setFont(new java.awt.Font("Dialog", Font.PLAIN, 18));
    lblqingdan.setText("清    单");
    lblqingdan.setBounds(new Rectangle(28, 46, 75, 29));
    taxdisplay.setText("jTextArea1");
    this.getContentPane().add(lbltitle, null);
    this.getContentPane().add(txtmoney);
    this.getContentPane().add(jButton2);
    this.getContentPane().add(jButton1);
    this.getContentPane().add(jScrollPane1);
    jScrollPane1.getViewport().add(taxdisplay);
    this.getContentPane().add(lblqingdan);
    txtmoney.setHorizontalAlignment(JTextField.RIGHT); //文本右对齐
    this.setModal(true);
  }

  JLabel lbltitle = new JLabel();
  Border border1 = BorderFactory.createEtchedBorder(Color.white,
      new Color(165, 163, 151));
  Border border2 = new TitledBorder(border1, "总汇");
  JTextField txtmoney = new JTextField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  float price = 0;
  JScrollPane jScrollPane1 = new JScrollPane();
  JLabel lblqingdan = new JLabel();
  JTextArea taxdisplay = new JTextArea();
  public void jButton1_actionPerformed(ActionEvent e) {
    String money = txtmoney.getText().trim();
    if (money.equals("")) { //判断金额框是否为空
      JOptionPane.showMessageDialog(null, "请输入支付金额！", "错误",
                                    JOptionPane.ERROR_MESSAGE);
      return;
    }
    try {
      float my = Float.parseFloat(money);
      my -= price;
      if (my < 0) {//判断支付金额是否比消费金额少
        JOptionPane.showMessageDialog(null, "金额不足！", "错误",
                                      JOptionPane.ERROR_MESSAGE);
        return;
      }
      JOptionPane.showMessageDialog(null, "应找补:" + my + "元"); //找补提示
      this.dispose();//关闭当前
    }
    catch (NumberFormatException ex) { //确认金额输入是否正确
      JOptionPane.showMessageDialog(null, "请正确输入，金额不可以为：" + money, "错误",
                                    JOptionPane.ERROR_MESSAGE);
      return;
    }

  }
  public void jButton2_actionPerformed(ActionEvent e) { //取消
    this.dispose();
  }
}

class Checkout_jButton2_actionAdapter
    implements ActionListener {
  private Checkout adaptee;
  Checkout_jButton2_actionAdapter(Checkout adaptee) {
    this.adaptee = adaptee;
  }

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

class Checkout_jButton1_actionAdapter
    implements ActionListener {
  private Checkout adaptee;
  Checkout_jButton1_actionAdapter(Checkout adaptee) {
    this.adaptee = adaptee;
  }

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