用java设计一个员工类，可以计算工资个人所得税

1. 背景

老师在课上布置了几道java编程题，此为其中之一

2. 题目内容

设计一个员工类。该员工具有下列私有属性：编号，姓名，基本工资，奖金  提供有参构造函数：Employee(Strng ID,String name),   提供上述私有属性的读写函数.

提供计算个人所得税的方法:

工资个税的计算公式为：应纳税额=(工资薪金所得 －“五险一金”－扣除数)×适用税率－速算扣除数

自己在实际代码中对上述问题做了一些改进

3. 具体代码与解释

package Two;

/**

* @author Kun Sun

* @Date： 2013.10.15

*/

public class Employee { // 雇员类

private String ID; // ID

private String name; // 姓名

private int salary; // 工资薪金所得

private int insureHome; // “五险一金”数额

private int deduct; // 扣除数额

Employee(){

}

Employee(String ID,String name){ // 带参数的构造方法

this.ID = ID;

this.name = name;

}

Employee(String ID,String name,int salary,int insureHome,int deduct){ // 带参数的构造方法

this.ID = ID;

this.name = name;

this.salary = salary;

this.insureHome = insureHome;

this.deduct = deduct;

}

public String getID() {

return ID;

}

public String getName() {

return name;

}

public int getSalary() {

return salary;

}

public int getInsureHome() {

return insureHome;

}

public int getDeduct() {

return deduct;

}

public void setID(String iD) {

ID = iD;

}

public void setName(String name) {

this.name = name;

}

public void setSalary(int salary) {

this.salary = salary;

}

public void setInsureHome(int insureHome) {

this.insureHome = insureHome;

}

public void setDeduct(int deduct) {

this.deduct = deduct;

}

public void selfValue(){ // 个人所得税具体计算

double sefValue;

if(salary>=0 && salary<1500){

sefValue = (double)(salary-insureHome-deduct)*0.03 - 0;

}else if(salary>=1500 && salary<4500){

sefValue = (double)(salary-insureHome-deduct)*0.1 - 105;

}else if(salary>=4500 && salary<9000){

sefValue = (double)(salary-insureHome-deduct)*0.2 - 555;

}else if(salary>=9000 && salary<35000){

sefValue = (double)(salary-insureHome-deduct)*0.25 - 1005;

}else if(salary>=35000 && salary<55000){

sefValue = (double)(salary-insureHome-deduct)*0.30 - 2755;

}else if(salary>=55000 && salary<80000){

sefValue = (double)(salary-insureHome-deduct)*0.35 - 5505;

}else{

sefValue = (double)(salary-insureHome-deduct)*0.45 - 13505;

}

System.out.println(sefValue);

}

}

package Two;

/**

* @author Kun Sun

* @Date： 2013.10.15

*/

public class MainClass { // 用于测试雇员类

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

System.out.println("第一种调用方法：");

Employee emp = new Employee("1001","Sun");

emp.setSalary(12345);

emp.setInsureHome(890);

emp.setDeduct(55);

System.out.println("编号为"+emp.getID()+"，姓名是"+emp.getName()+" 的应纳税额是:");

emp.selfValue();

System.out.println("------------------------\n第二种调用方法：");

Employee emp2 = new Employee("1001","Sun",12345,890,55);

System.out.println("编号为"+emp2.getID()+"，姓名是"+emp2.getName()+" 的应纳税额是:");

emp2.selfValue();

System.out.println("------------------------\n第二种调用方法：");

Employee emp3 = new Employee();

emp3.setID("1001");

emp3.setName("Sun");

emp3.setSalary(12345);

emp3.setInsureHome(890);

emp3.setDeduct(55);

System.out.println("编号为"+emp3.getID()+"，姓名是"+emp3.getName()+" 的应纳税额是:");

emp3.selfValue();

}

}

4. 测试运行结果截图