Java编程：鸡兔同笼问题的算法解析

import java.awt.*;   
import java.awt.event.ActionEvent;   
import java.awt.event.ActionListener;   
import javax.swing.*;   
import javax.swing.border.Border;   
  
public class ChickenProgram extends JFrame implements ActionListener {   
  
private static final long serialVersionUID = 1L;   
private static final int PRICE_PER_COCK = 5; // 公鸡5元钱一只   
private static final int PRICE_PER_HEN = 3; // 母鸡3元钱一只   
private static final int PRICE_THREE_CHICKENS = 1; // 小鸡1元钱三只   
private static final double TOTAL_MONEY = 100;   
private static final int NO_OF_CHOOKS = 100; // 总的鸡数量   
JPanel panel1, panel2;   
JLabel resultLabel;   
  
public ChickenProgram() {   
        Container contentPane = getContentPane();   
        contentPane.setLayout(new BorderLayout());   
        panel1=new JPanel();   
        panel1.setLayout(new GridLayout(1,3));   
        panel2=new JPanel();   
        panel2.setLayout(new BorderLayout());   
  
        JLabel cockLabel, henLabel, chickenLabel;   
        cockLabel = new JLabel("每只公鸡：" + PRICE_PER_COCK + "元");   
        henLabel = new JLabel("每只母鸡：" + PRICE_PER_HEN + "元");   
        chickenLabel = new JLabel("小鸡：" + PRICE_THREE_CHICKENS + "元钱三只");