java-basics/java-programs/RemoveDuplicate.java at master · Sethu1910/java-basics · GitHub

26 lines (21 loc) · 696 Bytes

package misc;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.Iterator;

import java.util.LinkedHashSet;

public class RemoveDuplicate {

public static void main(String[] args) {

ArrayList<String> list = new ArrayList<String>();

list.add("two");

list.add("one");

list.add("three");

list.add("one");

list.add("four");

ArrayList<String> list2 = new ArrayList<String>(new HashSet<String>(list)); // no elements order

// ArrayList<String> list2 = new ArrayList<String>(new LinkedHashSet<String>(list)); //To preserve the order of the elements

Iterator<String> itr = list2.iterator();

while(itr.hasNext()) {

System.out.println(itr.next());

}

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