dentalpayment.java

适合与JAVA初级程序员 适合JAVA初学者编程

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

public class DentalPayment extends JFrame
{

     private JLabel dentalPaymentFormJLabel;
     private JLabel patientNameJLabel;
     private JTextField patientNameJTextField;
     private JCheckBox cleaningJCheckBox;
     private JLabel cleaningPriceJLabel;
     private JCheckBox cavityFillingJCheckBox;
     private JLabel cavityFillingPriceJLabel;
     private JCheckBox xRayJCheckBox;
     private JLabel xRayPriceJLabel;
     private JLabel totalJLabel;
     private JTextField totalJTextField;
     private JButton calculateJButton;

     public DentalPayment()
     {
         createUserInterface();
     }
     private void createUserInterface()
     {

         Container contentPane = getContentPane();
         contentPane.setLayout(null);

         dentalPaymentFormJLabel = new JLabel();
         dentalPaymentFormJLabel.setBounds(19,19,235,28);
         dentalPaymentFormJLabel.setText("Dental Payment Form");
         dentalPaymentFormJLabel.setFont(new Font("Default",Font.PLAIN,22));
         dentalPaymentFormJLabel.setHorizontalAlignment(JLabel.CENTER);
         contentPane.add(dentalPaymentFormJLabel);

         patientNameJLabel = new JLabel();
         patientNameJLabel.setBounds(19,65,91,21);
         patientNameJLabel.setText("Patient name:");
         contentPane.add(patientNameJLabel);
 
         patientNameJTextField = new JTextField();
         patientNameJTextField.setBounds(132,65,117,21);
         contentPane.add(patientNameJTextField);
         
         cleaningJCheckBox = new JCheckBox();
         cleaningJCheckBox.setBounds(16,112,122,24);
         cleaningJCheckBox.setText("Cleaning");
         contentPane.add(cleaningJCheckBox);

         cleaningPriceJLabel = new JLabel();
         cleaningPriceJLabel.setBounds(211,112,38,24);
         cleaningPriceJLabel.setText("$35");
         cleaningPriceJLabel.setHorizontalAlignment(JLabel.RIGHT);
         contentPane.add(cleaningPriceJLabel);
         
         cavityFillingJCheckBox = new JCheckBox();
         cavityFillingJCheckBox.setBounds(16,159,122,24);
         cavityFillingJCheckBox.setText("Cavity Filling");
         contentPane.add(cavityFillingJCheckBox);

         cavityFillingPriceJLabel = new JLabel();
         cavityFillingPriceJLabel.setBounds(211,159,38,24);
         cavityFillingPriceJLabel.setText("$150");
         cavityFillingPriceJLabel.setHorizontalAlignment(JLabel.RIGHT);
         contentPane.add(cavityFillingPriceJLabel);

         xRayJCheckBox = new JCheckBox();
         xRayJCheckBox.setBounds(16,206,122,24);
         xRayJCheckBox.setText("X-Ray");
         contentPane.add(xRayJCheckBox);

         xRayPriceJLabel = new JLabel();
         xRayPriceJLabel.setBounds(211,206,38,24);
         xRayPriceJLabel.setText("$85");
         xRayPriceJLabel.setHorizontalAlignment(JLabel.RIGHT);
         contentPane.add(xRayPriceJLabel);

         totalJLabel = new JLabel();
         totalJLabel.setBounds(144,256,41,21);
         totalJLabel.setText("Total:");
         contentPane.add(totalJLabel);
         
         totalJTextField = new JTextField();
         totalJTextField.setBounds(192,256,56,21);
         totalJTextField.setEditable(false);
         totalJTextField.setHorizontalAlignment(JTextField.CENTER);
         contentPane.add(totalJTextField);
    
         calculateJButton = new JButton();
         calculateJButton.setBounds(155,296,94,24);
         calculateJButton.setText("Calculate");
         contentPane.add(calculateJButton);
         calculateJButton.addActionListener(
 
            new ActionListener()
            {
            
               public void actionPerformed(ActionEvent event)
               {
                   calculateJButtonActionPerformed(event);
               }
          
            }
         );

         setTitle("Dental Payment");
         setSize(272,364);
         setVisible(true);

     }
 
     private void calculateJButtonActionPerformed(ActionEvent event)
     {

         String patient = patientNameJTextField.getText();
         
         if((patient.equals(""))||(!cleaningJCheckBox.isSelected()&&!
           !cavityFillingJCheckBox.isSelected()&&!xRayJCheckBox.isSelected()))
         {

             JOptionPane.showMessageDialog(null,"Please fuck.","fuck her"
                     ,JOptionPane.ERROR_MESSAGE);
         }
         else
         {
             double total = 0.0;

             if(cleaningJCheckBox.isSelected())
             {
                 total += 35 ;
             }
             if(cavityFillingJCheckBox.isSelected())
             {
                 total += 150 ;
             }
             if(xRayJCheckBox.isSelected())
             {
                   total += 85 ;
             }

             DecimalFormat dollars = new DecimalFormat("$0.00");
             totalJTextField.setText(dollars.format(total));

             }

          }

          public static void main(String[]args)
          {
             DentalPayment application = new DentalPayment();
             application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          }

}