JAVA第十五周作业
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。
课后作业
• 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‖);
}
• }
package m; public class colaEmployee { protected String name; protected int month; public colaEmployee() { super(); } public colaEmployee(String name, int month) { super(); this.name = name; this.month = month; } public double getSalary(int month) { return 0; } }
package m; public class company { public void getSalary(colaEmployee c, int month) { System.out.println(c.name + "在" + month + "月的月薪" + c.getSalary(month) + "元"); } }
package m; public class SalariedEmployee extends colaEmployee { protected double money; public SalariedEmployee() { super(); } public SalariedEmployee(String name, int month, double money) { super(name, month); this.money = money; } public double getSalary(int month) { if (super.month == month) { return money + 100; } else { return money; } } }
package m; public class HourlyEmployee extends colaEmployee { protected int hourmoney; protected int daymonth; public HourlyEmployee() { super(); } public HourlyEmployee(String name, int month, int hourmoney, int daymonth) { super(name, month); this.hourmoney = hourmoney; this.daymonth = daymonth; } public double getSalary(int month) { if (super.month == month) { if (daymonth > 160) { return hourmoney * 160 + hourmoney * (daymonth - 160) * 1.5 + 100; } else { return hourmoney * daymonth + 100; } } else { if (daymonth > 160) { return hourmoney * 160 + hourmoney * (daymonth - 160) * 1.5; } else { return hourmoney * daymonth; } } } }
package m; public class SalesEmployee extends colaEmployee { protected int monthsales; protected double rate; public SalesEmployee() { super(); } public SalesEmployee(String name, int month, int monthsales, double rate) { super(name, month); this.monthsales = monthsales; this.rate = rate; } public double getSalary(int month) { if (super.month == month) { return monthsales * rate + 100; } else { return monthsales * rate; } } }
package m; public class testcompany { public static void main(String[] args) { // TODO Auto-generated method stub colaEmployee c1[] = { new SalariedEmployee("salarE", 8, 20000), new HourlyEmployee("hourlyE", 4, 200, 200), new SalesEmployee("salesE", 5, 600000, 0.5) }; for (int i = 0; i < c1.length; i++) { new company().getSalary(c1[i], 7); } } }
课后作业
• 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‖);
}
• }