题解 | #统计输入正数个数#
计算整数位数
http://www.nowcoder.com/practice/07232b8720614f7ea185391d1a7206eb
import java.util.Scanner;
public class Main { public static void main(String[] args) { Scanner scan = new Scanner(System.in); int num = scan.nextInt(); scan.close();
//write code here......
if (num<=0){
System.out.println(num);
}
else {
String str = String.valueOf(num);
char[] chars = str.toCharArray();
int count = chars.length;
if(chars[0]=='0'){
count--;
}
System.out.println(count);
}
}
}
