1 package com.shb.java; 2 /** 3 * 取出第一个重复的字符 4 * @author shaobn 5 * @date 2016-9-28 6 * @package_name com.shb.java 7 */ 8 public class Demo10 { 9 10 /** 11 * @param args 12 * @date 2016-9-28 13 * @author shaobn 14 */ 15 public static void main(String[] args) { 16 // TODO Auto-generated method stub 17 findFirstRepeat("wqyqwyer23tdd",11); 18 } 19 /** 20 * 实现方法 21 * @param str 22 * @param n 23 * @date 2016-9-28 24 * @author shaobn 25 */ 26 public static void findFirstRepeat(String str,int n){ 27 char[] ch = str.toCharArray(); 28 out: for(int i=0;i<n-1;i++){ 29 for(int j = i+1;j<n;j++){ 30 if(ch[i]!=ch[j]){ 31 continue; 32 }else { 33 System.out.println(ch[i]); 34 break out; 35 } 36 } 37 38 } 39 40 41 } 42 }