taxitem.java

一个计算个人所得税的Java程序

package iitax;

import java.io.Serializable;

public class TaxItem implements Serializable{
    /**
     * taxStartPoint 税率项的起点
     */
    private double taxStartPoint;
    
    /**
     * taxEndPoint 税率项的终点
     */
    private double taxEndPoint;
    
    /**
     * taxRate 税率
     */
    private double taxRate;
    
    /**
     * 构造函数
     * @param taxStartPoint 税率项的起点
     * @param taxEndPoint 税率项的终点
     * @param taxRate 税率值
     */
    public TaxItem(double taxStartPoint, double taxEndPoint, double taxRate){
        this.taxStartPoint = taxStartPoint;
        this.taxEndPoint = taxEndPoint;
        this.taxRate = taxRate;
    }
    
    /**
     * 构造函数, 用于实现税率表最后一项的构造
     * @param taxStartPoint  税率项的起点
     * @param taxRate 税率值
     */
    public TaxItem(double taxStartPoint, double taxRate){
        this.taxStartPoint = taxStartPoint;
        this.taxEndPoint = Constants.MAX_INCOME;
        this.taxRate = taxRate;
    }
    
    //以下为访问器
    public void setTaxStartPoint(double taxStartPoint) {
        this.taxStartPoint = taxStartPoint;
    }

    public double getTaxStartPoint() {
        return taxStartPoint;
    }

    public void setTaxEndPoint(double taxEndPoint) {
        this.taxEndPoint = taxEndPoint;
    }

    public double getTaxEndPoint() {
        return taxEndPoint;
    }

    public void setTaxRate(double taxRate) {
        this.taxRate = taxRate;
    }

    public double getTaxRate() {
        return taxRate;
    }
}