Question

关于Java编程问题!一、 如果一个整数的各位数之和能被9整除,则这个数也能被9整除.编程判断一个整数N是否能被9整除.

Answer 1

以下是题1的代码

public class Test {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

int input = scanner.nextInt();

boolean flag = false;

int temp = 0;

while(input%10>0){

temp += input%10;

input = input/10;

}

temp = temp + input;

if(temp%9==0){

flag = true;

}

System.out.println(flag?"能整除":"不能整除");

}

}

以下是题2的代码

public class Test1 {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.println("请输入路程");

int km = scanner.nextInt();

double price = new Test1().getprice(km);

System.out.println("单价/吨:"+price);

System.out.println("请输入重量(T)");

int h = scanner.nextInt();

System.out.println("价格为:"+(price*h));

}

public double getprice(int km){

double price = 0;

if(km=100&&km=300&&km=500&&km