How to check the two strings or sentences are Anagram using HashMap

import java.util.HashMap;
import java.util.Scanner;

public class CheckAnagramUsingHashMap {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		HashMap<Character,Integer> charCntOfStr1,charCntOfStr2 = new HashMap<Character,Integer>();
		Scanner inpStr=new Scanner(System.in);
		//Taking here input from the user the two lines
		System.out.println("Enter first sentence");
		String firstSentence=inpStr.nextLine();
		System.out.println("Enter second sentence");
		String secondSentence=inpStr.nextLine();
		inpStr.close();
		//Pass each line here to get the hashmap of all characters
		charCntOfStr1=getMapOfSentence(firstSentence);
		charCntOfStr2=getMapOfSentence(secondSentence);
		if(charCntOfStr1.equals(charCntOfStr2))
			System.out.println("Both input lines are Anagram");
		else
			System.out.println("Both input lines are not Anagram");
	}

	private static HashMap<Character, Integer> getMapOfSentence(String inpSentence) {
		// TODO Auto-generated method stub

		HashMap<Character,Integer> charCntOfStr= new HashMap<Character,Integer>();

		//Return the Hash Map of all characters excluding the While Space if any in between the sentence
		for (int i=0;i<inpSentence.length();i++) {
			char eachChar=Character.toLowerCase(inpSentence.charAt(i));
			if(Character.isWhitespace(eachChar))
				continue;
			else if(!charCntOfStr.containsKey(eachChar))
				charCntOfStr.put(eachChar, 1);
			else
				charCntOfStr.put(eachChar, charCntOfStr.get(eachChar)+1);
		}
		return charCntOfStr;
	}
}