How to find Frequency Of words in a Given String using Array List

How to find Frequency Of words in a Given String using Array List.

SOURCE : UsingList.java

import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;

public class UsingList {

	public static void main(String[] args) {

		String s = "india is my country and india is only the way out india and and their";
         s = s.trim();
		List ls = Arrays.asList(s.split(" "));
		HashSet hs = new HashSet(ls);
		for (String word : hs) {

			System.out.println(word + ":::" + Collections.frequency(ls, word));

		}

	}

}

INPUT

	String s = "india is my country and india is only the way out india and  and their"

OUTPUT

country:::1
their:::1
is:::2
india:::3
my:::1
way:::1
out:::1
the:::1
and:::3
only:::1

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