JAVA第十五周作业0611
4、 Cola公司的雇员分为以下若干类：(知识点：多态) [必做 题] • 4.1 ColaEmployee ：这是所有员工总的父类，属性：员工的 姓名,员工的生日月份。方法：getSalary(int month) 根据参数 月份来确定工资，如果该月员工过生日，则公司会额外奖励 100 元。 • 4.2 SalariedEmployee ： ColaEmployee 的子类，拿固定工 资的员工。属性：月薪课后作业 • 4.3 HourlyEmployee ：ColaEmployee 的子类，按小时拿工 资的员工，每月工作超出160 小时的部分按照1.5 倍工资发 放。属性：每小时的工资、每月工作的小时数 • 4.4 SalesEmployee ：ColaEmployee 的子类，销售人员， 工资由月销售额和提成率决定。属性：月销售额、提成率 • 4.5 定义一个类Company，在该类中写一个方法，调用该 方法可以打印出某月某个员工的工资数额，写一个测试类 TestCompany,在main方法，把若干各种类型的员工放在一 个ColaEmployee 数组里，并单元出数组中每个员工当月的 工资.
package com.homework01501; public abstract class ColaEmployee { protected String name; protected int staffMonth; protected int month; public void getSalary(int month) { if(staffMonth == month){ System.out.println("额外奖励100 元"); } } public ColaEmployee(String name, int staffMonth, int month) { super(); this.name = name; this.staffMonth = staffMonth; this.month = month; } public ColaEmployee() { super(); } }
package com.homework01501; public class Company { SalariedEmployee Salaried = new SalariedEmployee(); hourlyEmployee hourly = new hourlyEmployee(); SalesEmployee Sales = new SalesEmployee(); public void show(String name, int staffMonth, int month,int monthSalary) { Salaried.name = name; Salaried.staffMonth = staffMonth; Salaried.month = month; Salaried.monthSalary = monthSalary; if(staffMonth == month) System.out.println(name + month +"月的工资为"+ (monthSalary +100)); else System.out.println(name + month +"月的工资为"+ monthSalary); } public void show(String name, int staffMonth, int month,int hourlySalary, int monthHourly) { hourly.name = name; hourly.staffMonth = staffMonth; hourly.month = month; hourly.hourlySalary = hourlySalary; hourly.monthHourly = monthHourly; double Salary; Salary = hourlySalary *monthHourly; if(monthHourly >160) Salary = hourlySalary *(160+(monthHourly-160)*1.5); if(staffMonth == month) System.out.println(name + month +"月的工资为"+ (Salary +100)); else System.out.println(name + month +"月的工资为"+ Salary); } public void show(String name, int staffMonth, int month,int monthlySalesVolume, double royaltyRate) { Sales.name = name; Sales.staffMonth = staffMonth; Sales.month = month; Sales.monthlySalesVolume = monthlySalesVolume; Sales.royaltyRate = royaltyRate; double Salary; Salary = monthlySalesVolume * royaltyRate; if(staffMonth == month) System.out.println(name + month +"月的工资为"+ (Salary +100)); else System.out.println(name + month +"月的工资为"+ Salary); } }
package com.homework01501; public class hourlyEmployee extends ColaEmployee { protected int hourlySalary; //时薪 protected int monthHourly; //时长 public hourlyEmployee(String name, int staffMonth, int month, int hourlySalary, int monthHourly) { super(name, staffMonth, month); this.hourlySalary = hourlySalary; this.monthHourly = monthHourly; double Salary; Salary = hourlySalary *monthHourly; if(monthHourly >160) Salary = hourlySalary *(160+(monthHourly-160)*1.5); if(staffMonth == month) System.out.println(name + month +"月的工资为"+ (Salary +100)); else System.out.println(name + month +"月的工资为"+ Salary); } public hourlyEmployee() { } }
package com.homework01501; public class SalariedEmployee extends ColaEmployee{ protected int monthSalary; //月薪 public SalariedEmployee(String name, int staffMonth, int month, int monthSalary) { super(name, staffMonth, month); this.monthSalary = monthSalary; if(staffMonth == month) System.out.println(name + month +"月的工资为"+ (monthSalary +100)); else System.out.println(name + month +"月的工资为"+ monthSalary); } public SalariedEmployee() { } }
package com.homework01501; public class SalesEmployee extends ColaEmployee { protected int monthlySalesVolume; //月销售额 protected double royaltyRate; //提成率 public SalesEmployee(String name, int staffMonth, int month, int monthlySalesVolume, double royaltyRate) { super(name, staffMonth, month); this.monthlySalesVolume = monthlySalesVolume; this.royaltyRate = royaltyRate; double Salary; Salary = monthlySalesVolume * royaltyRate; if(staffMonth == month) System.out.println(name + month +"月的工资为"+ (Salary +100)); else System.out.println(name + month +"月的工资为"+ Salary); } public SalesEmployee() { } }
package com.homework01501; public class TestCompany { public static void main(String[] args) { Company c = new Company(); c.show("李四", 3, 2, 5000); c.show("月薪", 5, 2, 161, 15); c.show("销售", 2, 2, 20000, 0.15); ColaEmployee[] y = new ColaEmployee[3]; y[0] = new SalariedEmployee("王武", 2, 2, 5000); y[1] = new hourlyEmployee("小六", 5, 2, 160, 12); y[2] = new SalesEmployee("小张", 4, 4, 56000, 0.15); } }
5、利用接口实现动态的创建对象[选做题] • 5.1 创建4个类： • 苹果 • 香蕉 • 葡萄 • 园丁 • 5.2 在三种水果的构造方法中打印一句话. • 以苹果类为例 • class apple • { • public apple() • { • System.out.println(―创建了一个苹果类的对象‖); } • }课后作业 • 类图如下： • 5.3 要求从控制台输入一个字符串，根据字符串的 值来判断创建三种水果中哪个类的对象
package com.homework01502; public class Apple { public Apple() { System.out.println("创建了一个苹果类对象"); } }
package com.homework01502; public class Banana { public Banana() { System.out.println("创建了一个香蕉类对象"); } }
package com.homework01502; public class Grape { public Grape() { System.out.println("创建了一个葡萄类对象"); } }
package com.homework01502; import java.util.Scanner; public class Gradener { public Fruit fruit(){ Scanner input = new Scanner(System.in); System.out.println("请输入一种水果名称"); String name = input.next(); Fruit fruit = null; if(name.equals("苹果")) { return fruit = (Fruit) new Apple(); }else if(name.equals("香蕉")){ return fruit = (Fruit) new Banana(); }else if(name.equals("葡萄")){ return fruit = (Fruit) new Banana(); }else System.out.println("暂时无法种植"); return fruit; } }
package com.homework01502; public interface Fruit { }
package com.homework01502; public class Test { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Gradener g = new Gradener(); g.fruit(); } } package com.homework01502; public class Test { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Gradener g = new Gradener(); g.fruit(); } }
