ex2_5.java

Introduction to java programming 一书中所有编程练习部分的源码

import javax.swing.JOptionPane;

public class EX2_5 {

    public static void main(String[] args) {
        double cost, rate, debut, total;
        cost = Double.parseDouble(JOptionPane.showInputDialog("费用："));
        rate = Double.parseDouble(JOptionPane.showInputDialog("提成率："));
        debut = cost * rate;
        total = cost + debut;
        String result = "提成：" + debut + "\n" + "总费用：" + total;
        JOptionPane.showMessageDialog(null, result);
    }
}