java remove duplicates
import java.util.*;
public class RemoveDuplicatesFromArrayList {
public static void main(String[] args) {
List<Integer> numbers = Arrays.asList(1,2,2,2,3,5);
System.out.println(numbers);
Set<Integer> hashSet = new LinkedHashSet(numbers);
ArrayList<Integer> removedDuplicates = new ArrayList(hashSet);
System.out.println(removedDuplicates);
}
}String remove duplicate method in java
public static void main(String[] args) {
String result = removeDup("AAABBBCCC");
System.out.println(result); // ABC
public static String removeDup( String str) {
String result = "";
for (int i = 0; i < str.length(); i++)
if (!result.contains("" + str.charAt(i)))
result += "" + str.charAt(i);
return result;
}
}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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