Reverse Each Letter in string

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public class ReverseEachLetter { public static String reverseWord(String str){ String words[]=str.split("\\s"); String reverseWord=""; for(String w: words){ StringBuilder sb=new StringBuilder(w); sb.reverse(); reverseWord+=sb.toString()+" "; } return reverseWord.trim(); } public static void main(String[] args) { System.out.println(ReverseEachLetter.reverseWord("my name is nihal")); System.out.println(ReverseEachLetter.reverseWord("I am kurre")); } }