is anagram

// anagram by bp

import java.io.*;

class MyCode {
    public static void main (String[] args) {
        System.out.println(isAnagram("ate","eat"));
    }
}
/*

for i in list
  for j in list
    if isAnagram(i,j)
    {
      remove(j)
    }

return list.size
*/
public boolean isAnagram(String s1, String s2){
        boolean flag = false;
        if(s1.length()!=s2.length()){
            return false;
        }
        char[] s1ToCharArray = s1.toCharArray();
        char[] s2ToCharArray = s2.toCharArray();
        HashMap<Character,Integer> map1 = new HashMap<Character,Integer>();
        HashMap<Character,Integer> map2 = new HashMap<Character,Integer>();
        for(Character c1: s1ToCharArray){
            if(!map1.containsKey(c1)){
                map1.put(c1, 1);
            }
            else{
                Integer value = map1.get(c1);
                map1.replace(c1, value+1);
            }
        }
        for(Character c2: s2ToCharArray){
            if(!map2.containsKey(c2)){
                map2.put(c2, 1);
            }
            else{
                Integer value = map2.get(c2);
                map2.replace(c2, value+1);
            }
        }
        for(Character key: map1.keySet()){
            if(map2.containsKey(key)&&map2.get(key).equals(map1.get(key))){
                flag=true;
            }
        }
        return flag;
    }