public class Main { public static void main(String[] args) { // 给一个有工资收入和稿费收入的小伙伴算税: Income[] incomes = new Income[] { new Salary(8000), new Gaofei(20000) }; System.out.println(totalTax(incomes)); } public static double totalTax(Income... incomes) { double total = 0; for (Income income: incomes) { total = total + income.getTax(); } return total; } } class Income { protected double income; public Income(double income) { this.income = income; System.out.println(income); } public double getTax() { return income * 0.1; // 税率10% } } class Salary extends Income { public Salary(double income) { super(income); } @Override public double getTax() { if (income <= 5000) { return 0; } return (income - 5000) * 0.2; } } class Gaofei extends Income{ public Gaofei(double income){ super(income); } @Override public double getTax(){ if(income < 4000){ return (income-800) * 0.7 * 0.2; } return income * (1 - 0.2) * 0.7 *0.2; } }
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省体育馆到了