Two given Strings are anagram of each other or not?

Anagram.java

package com.javamultiplex.string;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 * 
 * @author Rohit Agarwal
 * @category String Interview Questions
 * @problem Check whether two Strings are anagram of each other or not.
 * 
 */
public class Anagram {

	public static void main(String[] args) {

		Scanner input = null;
		try {
			input = new Scanner(System.in);
			System.out.println("Enter first string: ");
			String firstString = input.next();
			System.out.println("Enter second string: ");
			String secondString = input.next();
			int firstStringLength = firstString.length();
			int secondStringLength = secondString.length();
			List<Character> firstList = new ArrayList<>();
			List<Character> secondList = new ArrayList<>();
			// Converting First String to List.
			for (int i = 0; i < firstStringLength; i++) {
				firstList.add(firstString.charAt(i));
			}
			// Converting Second String to List.
			for (int i = 0; i < secondStringLength; i++) {
				secondList.add(secondString.charAt(i));
			}
			if (isAnagram(firstList, secondList)) {
				System.out.println("Anagram");
			} else {
				System.out.println("Not Anagram");
			}

		} finally {
			if (input != null) {
				input.close();
			}
		}

	}

	private static boolean isAnagram(List<Character> firstList,
			List<Character> secondList) {

		int firstListSize = firstList.size();
		int secondListSize = secondList.size();
		boolean result = false;
		if (firstListSize == secondListSize) {
			if (firstList.containsAll(secondList) && secondList.containsAll(firstList)) {
				result = true;
			}
		}
		return result;
	}

}