Method to validate if two strings are anagrams

.java

public static boolean isAnagaram(String a, String b){
  char [] to_char = a.toCharArray();
  char [] to_char2 = b.toCharArray();
  
  int l1 = a.length();
  int l2 = b.length();
  
  Arrays.sort(l1);
  Arrays.sort(l2);
  
  if(l1 != l2){
    return false;
  }
  
  for(int i =0; i < to_char.length; i++){
    if(to_char[i] != to_char2){
      return false;
    }
   }
    return true;
}