java：个人所得税计算器
package day03;
import java.util.Scanner;
public class IncomeTax {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.println("请输入税前工资金额（￥）：");
double total = scan.nextDouble();
if(total < 3500) {
System.out.println("您不需要缴纳个人所得税！");
}else if((total - 3500) <= 4500) {
double tax = (total - 3500) * 3/100;
System.out.println("您应缴纳："+tax+"元个人所得税");
}else if((total - 3500) <= 4500) {
double tax = (total - 3500) * 10/100 - 105;
System.out.println("您应缴纳："+tax+"元个人所得税");
}else if((total - 3500) <= 9000) {
double tax = (total - 3500) * 20/100 - 555;
System.out.println("您应缴纳："+tax+"元个人所得税");
}else if((total - 3500) <= 35000) {
double tax = (total - 3500) * 25/100 - 1005;
System.out.println("您应缴纳："+tax+"元个人所得税");
}else if((total - 3500) <= 55000) {
double tax = (total - 3500) * 30/100 - 2755;
System.out.println("您应缴纳："+tax+"元个人所得税");
}else if((total - 3500) <= 80000) {
double tax = (total - 3500) * 35/100 - 5505;
System.out.println("您应缴纳："+tax+"元个人所得税");
}else {
double tax = (total - 3500) * 45/100 - 13505;
System.out.println("您应缴纳："+tax+"元个人所得税");
}
}
}