242. valid anagram

Given two strings s and t , write a function to determine if t is an anagram of s.

Example 1:

1 2	Input: s = "anagram", t = "nagaram" Output: true

Example 2:

1 2	Input: s = "rat", t = "car" Output: false

class  {
    public boolean isAnagram(String s, String t) {
        if (s == null || t == null) {
            return false;
      } 
       if (s.length() != t.length()) {
         return false;
      }
        char[] chs = s.toCharArray();
       char[] cht = t.toCharArray();
       Arrays.sort(chs);
        Arrays.sort(cht);
        String s2 = new String(chs);
        String t2 = new String(cht);
        return s2.equals(t2);
       
    }
}

242. valid anagram

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