Java实现计算景区门票GUI版（入门）

对于该系统，主要是针对不同的人群有不同的价格，成人是原价，老人是5折，小孩是3折，其UML图如下

这里给出了每一个类的实现，运行结果如下

YongTicket类


public class YongTickt extends Ticket{public YongTickt() {}public YongTickt(float price) {this.setPrice(price);}@Overridepublic float singlePrice() {return this.getPrice();}
}

ChikdTicket类

public class ChildTicket extends Ticket{public ChildTicket() {}public ChildTicket(float price) {this.setPrice(0.3f*price);}@Overridepublic float singlePrice() {return this.getPrice();}
}

OldTicket类

public class OldTicket extends Ticket {public OldTicket(){}public OldTicket(float price) {this.setPrice(0.5f*price);}@Overridepublic float singlePrice() {return this.getPrice();}
}

Ticket类


public abstract class Ticket {public float price;public Ticket(){}public Ticket(float price) {this.price = price;}public float getPrice() {return price;}public void setPrice(float price) {this.price = price;}abstract float singlePrice();
}

然后就是界面和实现了，TicketJFrame类

import java.awt.*;public class TicketJFrame extends javax.swing.JFrame {public TicketJFrame() {initComponents();}@SuppressWarnings("unchecked")// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponentsprivate void initComponents() {jLabel1 = new javax.swing.JLabel();jLabel2 = new javax.swing.JLabel();jLabel3 = new javax.swing.JLabel();jLabel4 = new javax.swing.JLabel();jLabel5 = new javax.swing.JLabel();jButton1 = new javax.swing.JButton();jTextField1 = new javax.swing.JTextField();jTextField2 = new javax.swing.JTextField();jTextField3 = new javax.swing.JTextField();jTextField4 = new javax.swing.JTextField();jLabel6 = new javax.swing.JLabel();setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);jLabel1.setText("没票标准单价       ");jLabel2.setText("成人票");jLabel3.setText("老人票5折");jLabel4.setText("儿童票3折");jLabel5.setText("总价");jButton1.setText("计算");jButton1.addActionListener(new java.awt.event.ActionListener() {public void actionPerformed(java.awt.event.ActionEvent evt) {jButton1ActionPerformed(evt);}});jTextField1.setText("100");jTextField2.setText("1");jTextField3.setText("1");jTextField4.setText("1");jLabel6.setText("180.0");javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());getContentPane().setLayout(layout);layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup(layout.createSequentialGroup().addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false).addGroup(layout.createSequentialGroup().addGap(31, 31, 31).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addComponent(jLabel3).addGroup(layout.createSequentialGroup().addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addComponent(jLabel2).addComponent(jLabel4).addComponent(jLabel5)).addGap(74, 74, 74).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addComponent(jLabel6).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false).addComponent(jTextField3, javax.swing.GroupLayout.DEFAULT_SIZE, 92, Short.MAX_VALUE).addComponent(jTextField2).addComponent(jTextField4)))))).addGroup(layout.createSequentialGroup().addGap(14, 14, 14).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addComponent(jButton1).addGroup(layout.createSequentialGroup().addComponent(jLabel1).addGap(52, 52, 52).addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 92, Short.MAX_VALUE))))).addContainerGap(164, Short.MAX_VALUE)));layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup(layout.createSequentialGroup().addGap(30, 30, 30).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jLabel1).addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)).addGap(23, 23, 23).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jLabel2).addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)).addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jLabel3).addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)).addGap(28, 28, 28).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jLabel4).addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)).addGap(24, 24, 24).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(jLabel5).addComponent(jLabel6)).addGap(18, 18, 18).addComponent(jButton1).addContainerGap(16, Short.MAX_VALUE)));pack();}// </editor-fold>//GEN-END:initComponentsprivate void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed// TODO add your handling code here://float standardPrice = Float.parseFloat(this.jLabel1.getText());float standardPrice = Float.parseFloat(jTextField1.getText());YongTickt yong = new YongTickt(standardPrice);OldTicket old = new OldTicket(standardPrice);ChildTicket child = new ChildTicket(standardPrice);float num = (float) (yong.singlePrice()*Float.parseFloat(jTextField2.getText())+ old.singlePrice()*Float.parseFloat(jTextField3.getText())+ child.singlePrice()*Float.parseFloat(jTextField4.getText()));//        System.out.println(standardPrice);
//        System.out.println(yong);
//        System.out.println(old);
//        System.out.println(child);jLabel6.setText(String.valueOf(num));//System.out.println("hello");}//GEN-LAST:event_jButton1ActionPerformed/*** @param args the command line arguments*/public static void main(String args[]) {try {for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {if ("Nimbus".equals(info.getName())) {javax.swing.UIManager.setLookAndFeel(info.getClassName());break;}}} catch (ClassNotFoundException ex) {java.util.logging.Logger.getLogger(TicketJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);} catch (InstantiationException ex) {java.util.logging.Logger.getLogger(TicketJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);} catch (IllegalAccessException ex) {java.util.logging.Logger.getLogger(TicketJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);} catch (javax.swing.UnsupportedLookAndFeelException ex) {java.util.logging.Logger.getLogger(TicketJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);}//</editor-fold>/* Create and display the form */java.awt.EventQueue.invokeLater(new Runnable() {public void run() {new TicketJFrame().setVisible(true);}});}// Variables declaration - do not modify//GEN-BEGIN:variablesprivate javax.swing.JButton jButton1;private javax.swing.JLabel jLabel1;private javax.swing.JLabel jLabel2;private javax.swing.JLabel jLabel3;private javax.swing.JLabel jLabel4;private javax.swing.JLabel jLabel5;private javax.swing.JLabel jLabel6;private javax.swing.JTextField jTextField1;private javax.swing.JTextField jTextField2;private javax.swing.JTextField jTextField3;private javax.swing.JTextField jTextField4;// End of variables declaration//GEN-END:variables
}

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Java实现计算景区门票GUI版（入门）

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