第十五周作业
• 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 homework15; public class ColaEmployee { String name; int mouth; public ColaEmployee(String name, int mouth) { super(); this.name = name; this.mouth = mouth; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getMouth() { return mouth; } public void setMouth(int mouth) { this.mouth = mouth; } public double getSalary(int mouth) { return 0; } } package homework15; public class HourlyEmployee extends ColaEmployee{ double salaryHour; int hour; public HourlyEmployee(String name,int mouth,double salaryHour,int hour){ super(name,mouth); this.salaryHour = salaryHour; this.hour = hour; } public double getSalary(int mouth) { if(this.mouth == mouth){ if(hour<=160){ return salaryHour*hour+100; }else{ return 160*salaryHour + (hour - 160)*1.5*salaryHour + 100; } }else{ if(hour<=160){ return salaryHour*hour; }else{ return 160*salaryHour + (hour - 160)*1.5*salaryHour; } } } } package homework15; public class SalariedEmployee extends ColaEmployee{ double salary; public SalariedEmployee(String name, int mouth, double gongzi) { super(name, mouth); this.salary = salary; } public double getGongzi() { if(this.mouth==mouth){ salary=salary+100; } return salary; } } package homework15; public class SalesEmployee extends ColaEmployee{ double sales; double rate; public SalesEmployee(String name,int mouth,double sales,double rate){ super(name,mouth); this.sales = sales; this.rate = rate; } public double getSalary(int mouth) { if(this.mouth == mouth){ return sales * rate + 100; }else{ return sales * rate + 100; } } } package homework15; public class Company { public void getSalary(ColaEmployee c,int mouth){ System.out.println(c.name+"的在"+mouth+"月的月薪为"+c.getSalary(mouth)); } } package homework15; public class text { public static void main(String[] args) { ColaEmployee[] c = {new HourlyEmployee("张",1, 15,200), new SalesEmployee("李",1,13,300)}; for(int i =0;i<c.length;i++ ){ new Company().getSalary(c[i], 1); } } }
• 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 Work; 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 Work; import java.util.Scanner; public class Gardener { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Gardener y = new Gardener(); y.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; } }