求解java编程题，谢谢大神！

这么简单的左右，自己写吧，属于java基础的东西 coreJava

public class Jie {
    public static void main(String[] args) {
        int salary=8000;
        int mianxi=3500;
        if (salary<=3500){
            System.out.println("个税=0;");
        }else if (salary>3500&&(salary-mianxi)<=1500){
           int a= (int) ((salary-mianxi)*0.03);
            System.out.println("个税="+a);
        }else if (salary>3500&&(salary-mianxi)>1500&&(salary-mianxi)<=4500){
            int a=(int) ((salary-mianxi)*0.1-105);
            System.out.println(a);
        }else if (salary>3500&&(salary-mianxi)>4500&&(salary-mianxi)<=9000){
            int a= (int) ((salary-mianxi)*0.2-555);
            System.out.println("个税="+a);
        }else if (salary>3500&&(salary-mianxi)>9000&&(salary-mianxi)<=35000){
            int a= (int) ((salary-mianxi)*0.25-1005);
            System.out.println("个税="+a);
        }else if (salary>3500&&(salary-mianxi)>35000&&(salary-mianxi)<=55000){
            int a= (int) ((salary-mianxi)*0.3-2755);
            System.out.println("个税="+a);
        }else if (salary>3500&&(salary-mianxi)>55000&&(salary-mianxi)<=80000){
            int a= (int) ((salary-mianxi)*0.35-5505);
            System.out.println("个税="+a);
        }else if (salary>3500&&(salary-mianxi)>80000){
            int a= (int) ((salary-mianxi)*0.45-13505);
            System.out.println("个税="+a);
        }
    }
}