两道JAVA程序设计题

第一题看的脑壳疼，但是和第二题的意思差不多，我帮你做了第二题

public class List {

public static void main(String[] args) {

Employee e1 = new Employee("张强","2010/09/01",6890)

e1.show("普通")

System.out.println("年纳税："+e1.tax())

Manager m1 = new Manager("朱慧","2003/07/06",18530,38000)

m1.show("管理")

System.out.println("年纳税："+m1.tax())

}

}

//下面是补全的代码

class Employee{

String name,date

double salary,bonus

Employee(String name,String date,double salary){

this.name = name

this.date = date

this.salary = salary

}

public void show(String str){

System.out.println("岗位:"+str)

System.out.println("姓名:"+name+",入职时间:"+date+",月薪:"+salary)

}

public double tax(){

if(salary <= 0){

throw new RuntimeException("工资不允许小于等于0")

}

else if(salary>3000 && salary<=5000){

salary = salary*0.05*12 //纳税这里我也不知道他们具体是怎么个算法，反正意思差不多，套进去就行了

}

else if(salary>5000 && salary<=10000){

salary = salary*0.1*12

}

else if(salary>10000 && salary<=15000){

salary = salary*0.15*12

}

else if(salary>15000){

salary = salary*0.2*12

}

return salary+(bonus*0.2)

}

}

class Manager extends Employee{

Manager(String name,String date,double salary,double bonus){

super(name,date,salary)

super.bonus = bonus

}

public void show(String str){

System.out.println("岗位:"+str)

System.out.println("姓名:"+name+",入职时间:"+date+",月薪:"+salary+",奖金:"+bonus)

}

}

代码如下

class Box{

private int width

private int length

private int height

public Box(int width,int length,int height){

this.width = width

this.length = length

this.height = height

}

public void showBox(){

System.out.println("盒子的width、length、height分别为"+width+","+length+","+height)

}

}

如果有帮助到你，请点击采纳

按照题目要求编写的圆,圆锥和测试类的Java程序如下

Test.java文件内容如下

class Circle{

private double r

private String color

public Circle(double r){

this.r=r

}

public double area(){

return Math.PI*r*r

}

public double perimeter(){

return Math.PI*2*r

}

public double getR(){

return this.r

}

public void setR(double r){

this.r=r

}

public String getColor(){

return this.color

}

public void setColor(String color){

this.color=color

}

public String toString(){

return "圆的半径为"+r+",颜色为"+color

}

}

class Cone{

private Circle c

private double h

private String color

public Cone(Circle c,double h){

this.c=c

this.h=h

}

public double volume(){

return 1.0/3*c.area()*h

}

public Circle getCircle(){

return this.c

}

public void setCircle(Circle c){

this.c=c

}

public double getH(){

return this.h

}

public void setH(double h){

this.h=h

}

public String getColor(){

return this.color

}

public void setColor(String color){

this.color=color

}

public String toString(){

return "圆锥的底面积为"+c.area()+",高为"+h+",颜色为"+color

}

}

public class Test{

public static void main(String[] args){

Circle circle1=new Circle(2.5)

circle1.setColor("红色")

System.out.println(circle1.toString())

System.out.println("圆的面积为"+circle1.area())

System.out.println("圆的周长为"+circle1.perimeter())

Cone circlar1=new Cone(circle1,2.7)

circlar1.setColor("蓝色")

System.out.println(circlar1.toString())

System.out.println("圆锥的体积为"+circlar1.volume())

}

}

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