public static void main(String[] args) {
        double money=100000;
        int count=0;
        while(money>1000){
            if (money>50000){
                money=money-money*0.05;
                count++;
            }else if (money>=1000){
                money-=1000;
                count++;
            }else {
                break;
            }
        }
        System.out.println(count);
    }

结果为：