public class Income {
protected double income;
public Income(double income) {
this.income = income;
}
public double getTax() {
return income * 0.1; // 税率10%
}
}
/**
* 稿费收入税率是20%
*/
public class RoyaltyIncome extends Income {
public RoyaltyIncome(double income) {
super(income);
}
@Override
public double getTax() {
return super.getTax()*2;
}
// TODO
}
public class SalaryIncome extends Income {
public SalaryIncome(double income) {
super(income);
}
@Override
public double getTax() {
if (income <= 5000) {
return 0;
}
return (income - 5000) * 0.2;
}
}
/**
* Learn Java from https://www.liaoxuefeng.com/
*
* @author liaoxuefeng
*/
public class Main {
public static void main(String[] args) {
// TODO: 给一个有工资收入和稿费收入的小伙伴算税:
Income[] incomes = new Income[] { new Income(3000), new SalaryIncome(7500), new RoyaltyIncome(12000) };
double total = incomes[0].getTax()+incomes[1].getTax()+incomes[2].getTax();
// TODO:
System.out.println(total);
}
}
龙眠野人张