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;
}
}java remove duplicates
public static <T> ArrayList<T> removeDuplicates(ArrayList<T> list){
Set<T> set = new LinkedHashSet<>(list);
return new ArrayList<T>(set);
}remove duplicate string collection in java
String str2 = "ABABABCDEF";// ABCDEF
String[] arr2 = str2.split("");
str2 = new LinkedHashSet<>(Arrays.asList(arr2)).toString().replace(", ", "");
System.out.println(str2); // ABCDEFCopyright © 2021 Codeinu
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