Eliminate Duplicates in Arraylist

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Rajendra

Eliminate Duplicates in Arraylist
1 Answer(s) 4 years and 2 months ago
Posted in : Java Interview Questions

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March 26, 2009 at 11:32 PM

Hi friend,

Code to help in solving the problem :

import java.util.*;
public class RemoveDuplicate {

/** Creates a new instance of RemoveDuplicate */
public RemoveDuplicate() {
}

public static void main(String args[])
{
ArrayList arlList = new ArrayList();
arlList.add("a");
arlList.add("a");
removeDuplicate(arlList);
System.out.print("arlList : " + arlList);

}
public static void removeDuplicate(ArrayList arlList)
{
HashSet h = new HashSet(arlList);
arlList.clear();
arlList.addAll(h);
}
}

Thanks

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