Java第十五次作业
package txt; public class em { String name; int moth; public em() { super(); } public em(String name, int moth) { super(); this.name = name; this.moth = moth; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getMoth() { return moth; } public void setMoth(int moth) { this.moth = moth; } public double getSalary(int moth) { return 0; } }
package txt; public class sa extends em { int salar; public sa() { super(); } public sa(int salar) { super(); this.salar = salar; } public sa(String name, int month, double money) { super(name, month); this.salar = salar; } public double getSalary(int moth) { if (super.moth == moth) { return salar + 100; } else { return salar; } } }
package txt; public class hour extends em { int money; int month; public hour() { super(); } public hour(int money, int month) { super(); this.money = money; this.month = month; } public double getSalary(int month) { if (super.moth == month) { if (month > 160) { return money * 160 + money * (month - 160) * 1.5 + 100; } else { return money * month + 100; } } else { if (month > 160) { return money * 160 + money * (month - 160) * 1.5; } else { return money * month; } } } }
package txt; public class sales extends em{ protected int monthsales; protected double rate; public sales() { super(); } public sales(String name, int month, int monthsales, double rate) { super(name, month); this.monthsales = monthsales; this.rate = rate; } public double getSalary(int month) { if (super.moth == month) { return monthsales * rate + 100; } else { return monthsales * rate; } } }
package txt; public class ra { public void getSalary(em c, int month) { System.out.println(c.name + "在" + month + "月的月薪为" + c.getSalary(month) + "元"); } }
package txt; public class txt { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub em[] cel = { new sa("salarE", 6, 30000), new sales("salesE", 3, 7000000, 0.3) }; for (int i = 0; i < cel.length; i++) { new ra().getSalary(cel[i],7); } } }
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 ad; 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 ad; import java.util.Scanner; public class Test1 { public static void main(String[] args) { Test1 y = new Test1(); 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; } }