统计字符

题目描述

给定一个英文字符串,请写一段代码找出这个字符串中首先出现三次的那个英文字符。

输入描述:

输入数据一个字符串，包括字母，数字等。

输出描述:

输出首先出现三次的那个英文字符

示例1

输入

Have you ever gone shopping and

输出

E

实现

 

public class Main {

       publicstatic void main(String[] args) {

              Scannerin = new Scanner(System.in);

              while(in.hasNext()){

                     Strings = in.nextLine();

                     Map<Character,Integer>map =new LinkedHashMap<>();

                     for(inti=0;i<s.length();i++){

                            charc = s.charAt(i);

                            if(map.containsKey(c)){

                                   intcount = map.get(c);

                                   if(c>='a'&& c<='z' || c>= 'A' &&c<='Z'){

                                          if(count==2){

                                                 System.out.println(c);

                                                 break;

                                          }

                                   }

                                   map.put(c,count+1);

                            }else{

                                   map.put(c,1);

                            }

                     }

              }

       }

}