Method 1 : Removing Duplicate Elements From ArrayList Using HashSet

Sumit Rawal answered on May 20, 2023 Popularity 3/10 Helpfulness 1/10

answer Method 1 : Removing Duplicate Elements From ArrayList Using HashSet

Method 1 : Removing Duplicate Elements From ArrayList Using HashSet

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import java.util.ArrayList;
import java.util.HashSet;
 
public class MainClass
{
    public static void main(String[] args)
    {
        //Constructing An ArrayList
 
        ArrayList<String> listWithDuplicateElements = new ArrayList<String>();
 
        listWithDuplicateElements.add("JAVA");
 
        listWithDuplicateElements.add("J2EE");
 
        listWithDuplicateElements.add("JSP");
 
        listWithDuplicateElements.add("SERVLETS");
 
        listWithDuplicateElements.add("JAVA");
 
        listWithDuplicateElements.add("STRUTS");
 
        listWithDuplicateElements.add("JSP");
 
        //Printing listWithDuplicateElements
 
        System.out.print("ArrayList With Duplicate Elements :");
 
        System.out.println(listWithDuplicateElements);
 
        //Constructing HashSet using listWithDuplicateElements
 
        HashSet<String> set = new HashSet<String>(listWithDuplicateElements);
 
        //Constructing listWithoutDuplicateElements using set
 
        ArrayList<String> listWithoutDuplicateElements = new ArrayList<String>(set);
 
        //Printing listWithoutDuplicateElements
 
        System.out.print("ArrayList After Removing Duplicate Elements :");
 
        System.out.println(listWithoutDuplicateElements);
    }
}

Popularity 3/10 Helpfulness 1/10 Language whatever

Source: javaconceptoftheday.com

Tags: arraylist elements hashset using whatever

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Contributed on May 20 2023

Sumit Rawal

0 Answers Avg Quality 2/10

Method 1 : Removing Duplicate Elements From ArrayList Using HashSet

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