package cn.edu.bjut.chapter2; public class ThreeDigitNumber { public static void main(String[] args) { int count = 0; int sum = 0; for (int i = 100; i < 1000; i++) { String str = String.valueOf(i); if (str.indexOf('9') >= 0) { continue; } count++; sum += i; } System.out.println(count + "\t" + sum); } }