问如何将给定字符串数组中的不同字形组合在一起？

EN

    Map<String, List<String>> anagrams = new HashMap<String, List<String>>();
    List<String> words = new ArrayList<String>(strs.length);
    words.addAll(Arrays.asList(strs));
    for(String str:words){
        char[] word = str.toCharArray();
        Arrays.sort(word);
        String sortedWord = new String(word);
        
        if(anagrams.containsKey(sortedWord)){
            anagrams.get(sortedWord).add(str);
        }
        else{
           anagrams.put(sortedWord, new ArrayList<String>(Arrays.asList(str))); 
        }
        
    }
    List<List<String>> output = new ArrayList<List<String>>();
    for(Map.Entry<String, List<String>> entry:anagrams.entrySet()){
        output.add(entry.getValue());
    }
    return output;
}