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| Ans. public class BuggyBread{ public static void main (String args[]) { Set<Character> set = new HashSet(); Set<Character> setWithDuplicateChar = new HashSet(); String str = "hello world"; for(char character: str.toCharArray()){ if(set.contains(character)){ setWithDuplicateChar.add(character); } else { set.add(character); } } System.out.println(setWithDuplicateChar); } } | ||||
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