eclipse通过,提交报错,哪错了?
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
if(num >=0 && num <=999999999){
while(num !=0){
num /= 10;
count++;
}
System.out.println("它是个" + count + "位的数!");
}
}
}
