Breaking News: Grepper is joining You.com. Read the official announcement!

Java – Find, Count and Remove Duplicate Elements from Array

Add Answer

Deepika Sahu answered on June 12, 2020 Popularity 8/10 Helpfulness 2/10

answer Java – Find, Count and Remove Duplicate Elements from Array

related java remove duplicates

related array remove duplicate in java

Java – Find, Count and Remove Duplicate Elements from Array

Comment

Integer[] numArray = new Integer[]{1, 2, 3, 4, 5, 1, 3, 5};

Set<Integer> distinctElementsSet = new HashSet<>();
Integer[] duplicateElementsArray = Arrays.stream(numArray)
    .filter(e -> !distinctElementsSet.add(e))
    .toArray(Integer[]::new);

System.out.println("Duplicate elements in the array : " + Arrays.toString(duplicateElementsArray));  //1, 3, 5]

int duplicateCount = duplicateElementsArray.length;

System.out.println("Count of duplicate elements : " + duplicateCount);   //3

Popularity 8/10 Helpfulness 2/10 Language java

Source: howtodoinjava.com

Tags: count elements java

Link to this answer
Share Copy Link

Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Closely Related Answers

java remove duplicates

Comment

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);
    }
}

Popularity 10/10 Helpfulness 5/10 Language java

Source: devqa.io

Tags: java

Link to this answer
Share Copy Link

Contributed on Jun 12 2020

Shy Snail

0 Answers Avg Quality 2/10

java remove duplicates

Comment

public static <T> ArrayList<T> removeDuplicates(ArrayList<T> list){
  Set<T> set = new LinkedHashSet<>(list);
  return new ArrayList<T>(set);
}

Popularity 10/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on Jun 16 2020

Efton

0 Answers Avg Quality 2/10

array remove duplicate in java

Comment

List<Integer>numbers = Arrays.asList(1,2,2,2,3,5); // [1, 2, 3, 5]
System.out.println(numbers);

Set<Integer> hashSet = new LinkedHashSet(numbers);
ArrayList<Integer> removedDuplicates = new ArrayList(hashSet);
System.out.println(removedDuplicates); // [1, 2, 3, 5]

Popularity 10/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on Jun 04 2021

Ozzzy

0 Answers Avg Quality 2/10

Java – Find, Count and Remove Duplicate Elements from Array

Contents

More Related Answers

Java – Find, Count and Remove Duplicate Elements from Array

Closely Related Answers

java remove duplicates

java remove duplicates

array remove duplicate in java

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.