蓝桥杯 504单词分析java

import java.util.Map; import java.util.Scanner; import java.util.TreeMap; public class Main { public static void main(String[] args) { Scanner in=new Scanner(System.in); String s=in.nextLine(); Map<Character,Integer> map=new TreeMap<>();//TreeMap自动根据key排序 for (int i=0;i<s.length();i++){ if (map.containsKey(s.charAt(i))){ map.put(s.charAt(i),map.get(s.charAt(i))+1); }else { map.put(s.charAt(i),1); } } //找出最大值 int max=0; for (Character c : map.keySet()) { if (map.get(c)>max){ max=map.get(c); } } //打印最大值且字典序最小 for (Character c : map.keySet()) { if (map.get(c)==max){ System.out.println(c); System.out.println(max); break; } } } }