ZZULIOJ 1132: 数字字符统计，Java

1132: 数字字符统计

import java.util.Scanner;
public class Main {
    
    
    public static void main(String[] args) {
    
    
        Scanner cin = new Scanner(System.in);
        int T=cin.nextInt();
        while(T-->0)
        {
    
    
            String str=cin.next();
            int ans=0;
            for(int i=0;i<str.length();i++)
                if(str.charAt(i)>='0'&&str.charAt(i)<='9')
                    ans++;
            System.out.println(ans);
        }
    }
}