java program to remove duplicate words in a string
String fullString = "lol lol";
String[] words = fullString.split("\\W+");
StringBuilder stringBuilder = new StringBuilder();
Set<String> wordsHashSet = new HashSet<>();
for (String word : words) {
if (wordsHashSet.contains(word.toLowerCase())) continue;
wordsHashSet.add(word.toLowerCase());
stringBuilder.append(word).append(" ");
}
String nonDuplicateString = stringBuilder.toString().trim();String remove duplicate in java
String str1 = "ABCDABCD";
String result1 = "";
for (int a = 0; a <= str1.length()-1; a++) {
if (result1.contains("" + str1.charAt(a))) {
// charAt methodda you provide index number ve sana character olarak donuyor,
// If the string result does not contains str.CharAt(i),
// then we concate it to the result. if it does we will not
continue;
}
result1 += str1.charAt(a);
}
System.out.println(result1);Copyright © 2021 Codeinu
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