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第四章第二十三题(金融应用:酬金)(Financial application: payroll)


*4.23(金融应用:酬金)编写一个程序,读取下面的信息,然后输出一个酬金声明:

雇员姓名(如Smith)
每周的工作小时数(如10小时)
每小时的酬金(如9.75美元)
联邦所得税税率(如20%)
州所得税税率(如9%)
下面是一个运行示例:
Enter employee’s name:Smith
Enter number of hours worked in a week:10
Enter hourly pay rate:9.75
Enter federal tax withholding rate:0.20
Enter state tax withholding rate:0.09
Employee Name:Smith
Hours Worked:10.0
Pay Rate:$9.75
Gross Pay:97.5
Deductions:
Federal Withholding (20.0%): $19.5
State Withholding (9.0%): $8.77
Total Deduction: $28.27
Net pay:$69.22

*4.23(Financial application: payroll) Write a program that reads the following information and prints a payroll statement:

Employee’s name (e.g., Smith)
Number of hours worked in a week (e.g., 10)
Hourly pay rate (e.g., 9.75)
Federal tax withholding rate (e.g., 20%)
State tax withholding rate (e.g., 9%)
A sample run is as follows:
Enter employee’s name:Smith
Enter number of hours worked in a week:10
Enter hourly pay rate:9.75
Enter federal tax withholding rate:0.20
Enter state tax withholding rate:0.09
Employee Name:Smith
Hours Worked:10.0
Pay Rate:$9.75
Gross Pay:97.5
Deductions:
Federal Withholding (20.0%): $19.5
State Withholding (9.0%): $8.77
Total Deduction: $28.27
Net pay:$69.22

下面是参考答案代码:

import java.util.Scanner;

public class PayRollQuestion23 {
public static void main(String[] args) {
String employeeName;
double hoursWorked,hourlyPayRate,federalTaxRate,stateTaxRate;

Scanner input = new Scanner(System.in);
System.out.print("Enter employee's name: ");
employeeName = input.nextLine();
System.out.print("Enter number of hours worked in a week: ");
hoursWorked = input.nextDouble();
System.out.print("Enter hourly pay rate: ");
hourlyPayRate = input.nextDouble();
System.out.print("Enter federal tax withholding rate: ");
federalTaxRate = input.nextDouble();
System.out.print("Enter state tax withholding rate: ");
stateTaxRate = input.nextDouble();

System.out.printf("Employee Name: %s\n", employeeName);
System.out.printf("Hours Worked: %.1f\n", hoursWorked);
System.out.printf("Pay Rate: %.2f\n", hourlyPayRate);
System.out.printf("Gross Pay: %.2f\n", hoursWorked * hourlyPayRate);
System.out.printf("Deductions:\n");
System.out.printf(" Federal Withholding (%.1f%%): $%.2f\n", federalTaxRate * 100, federalTaxRate * hoursWorked * hourlyPayRate);
System.out.printf(" State Withholding (%.1f%%): $%.2f\n", stateTaxRate * 100, stateTaxRate * hoursWorked * hourlyPayRate);
System.out.printf(" Total Deduction: $%.2f\n", federalTaxRate * hoursWorked * hourlyPayRate
+ stateTaxRate * hoursWorked * hourlyPayRate);
System.out.printf("Net pay: $%.2f\n", hoursWorked * hourlyPayRate
- federalTaxRate * hoursWorked * hourlyPayRate
- stateTaxRate * hoursWorked * hourlyPayRate);
input.close();
}
}

运行效果:

第四章第二十三题(金融应用:酬金)(Financial application: payroll)_下划线

注:编写程序要养成良好习惯
1.文件名要用英文,具体一点
2.注释要英文
3.变量命名要具体,不要抽象(如:a,b,c等等),形式要驼峰化
4.整体书写风格要统一(不要这里是驼峰,那里是下划线,这里的逻辑段落空三行,那里相同的逻辑段落空5行等等)
5.普通变量,方法名要小驼峰,类名要大驼峰,常量要使用全部大写加上下划线命名法
6.要学习相应的代码编辑器的一些常用快捷键,如:快速对齐等等


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