用java设计一个员工类，可以计算工资个人所得税

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;       // IDprivate 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 stubSystem.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