Java第十五次作业
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 G3;
public interface Fruit {
}
class Apple implements Fruit {
public Apple() {
System.out.println("创建了一个苹果类的对象");
}
}
class Banana implements Fruit {
public Banana() {
System.out.println("创建了一个香蕉类的对象");
}
}
class Grape implements Fruit {
public Grape() {
System.out.println("创建了一个葡萄类的对象");
}
}
package G3;
import java.util.Scanner;
public class Gardener {
public static void main(String[] args) {
// TODO Auto-generated method stub
Gardener g = new Gardener();
g.create();
}
public Fruit create() {
Scanner input = new Scanner(System.in);
String name = input.next();
Fruit f = null;
if (name.equals("苹果")) {
f = new Apple();
}
if (name.equals("香蕉")) {
f = new Banana();
}
if (name.equals("葡萄")) {
f = new Grape();
}
return f;
}
}
