《Java程序设计》实验报告七0432.doc

Java程序设计实验报告学号 201405060432班级14信计姓名刘帆指导教师金玲玲实验题目实验七、类与对象31、 实验目的1. 掌握抽象类的定义及抽象方法；2. 掌握抽象类的继承特点；3. 掌握接口的定义和实现，体会接口的作用；2、 实验内容1. 编写雇员工资支付程序。定义抽象类雇员类Employee类，并提供方法computeSalary()。不同类型的雇员(定义子类)按不同的方式支付工资。 经理：每月获得一份固定的工资； 销售人员：在基本工资的基础上加销售提成； 一般工人：按工作天数计算工资； 试用类的继承及相关机制描述上述功能需求并测试类。2. 程序功能：在程序中声明一个自定义接口NL，用来计算一个人年龄。要求：定义接口NL，接口中定义属性year，取值为2015；定义抽象方法求年龄age()和输出信息output()；定义类A实现接口NL，A中定义属性姓名和出生年份，其方法按需定义。3. 根据所提供接口的定义，续写程序，要求体现对接口的多重继承。(方法实现自定义)interface A int x=10; String fun1();interface B int y=5; void fun2();/续写3、程序清单：（粘贴源程序代码）1。abstract class Employee String name; public Employee(String name) =name; public String getName() return name;public abstract double computeSalary();class Manager extends Employee double Salary; public Manager(String name,double Salary) super(name); this.Salary=Salary;public double computeSalary() return Salary; class Salaesman extends Employee double baseSalary; int quantity; double univalent;public Salaesman(String name,double baseSalary,int quantity,double commision) super(name); this.baseSalary=baseSalary; this.quantity=quantity; this.univalent=univalent;public double computeSalary() return baseSalary+quantity*univalent;class Worker extends Employee int days; double daySalary;public Worker(String name,int days,double daySalary) super(name); this.days=days; this.daySalary=daySalary;public double computeSalary() return days*daySalary;public class EmployeeTest public static void main(String args) Manager m=new Manager(刘红,5000); Salaesman s=new Salaesman(张三,2000,20,300); Worker w=new Worker(李梅,30,100); System.out.println(经理工资为：+puteSalary(); System.out.println(销售工资为：+puteSalary(); System.out.println(工人工资为：+puteSalary(); interface A public static int x=10;public abstract String fun1();interface B public static int y=5;public abstract void fun2();public class Test implements A, B public String fun1() return +x;public void fun2() return +y;public static void main(String args) Test t=new Test();System.out.println(t.fun1();System.out.println(t.fun2();2。interface NL int year=2015; int age(); void output();public class A implements NL String name;int birthyear;public void setName(String name) = name;public void setBirthyear(int birthyear) this.birthyear = birthyear;public int age() return year-birthyear;public void output() return +age;3 interface A public static int x=10;public abstract String fun1();interface B public static int y=5;public abstract void fun2();public class Test implements A, B public String fun1() return 接口A的属性值:+x;public void fun2() return 接口B的属性值:+x;public static void main(String args) Test t=new Test()