Program : find duplicate string from list

Question

Anonymous · Accepted Answer

Use hashmap to get duplicate string or java 8 groupingBy function

Vaidehi Trivedi · Answer

import java.util.*;


public class Main
{
	public static void main(String[] args) {
		List list = new ArrayList();
		list.add("hello");
		list.add("helloworld");
		list.add("xyz");
		list.add("xyz");
		List duplicateList = new ArrayList();
		System.out.println(list);
		
	    Map hm = new HashMap();
		
	    for(int i = 0; i

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