count the occurence/duplicate of word in the given string - Java

import java.util.HashMap;
import java.util.Map;

public class test3 {

    public static void main(String[] args) {
        String s1 = "hare krishn hare krishn krishn krishn hare hare. hare ram hare ram ram ram hare hare";
        String s2 = s1.replace(".","");
        String arr[]=s2.split(" ");

        Map<String,Integer> hm = new HashMap<String,Integer>();
        for(String val: arr){
            if(hm.containsKey(val)){
                hm.put(val,hm.get(val)+1);
            }else{
                hm.put(val,1);
            }
        }
        hm.forEach((a,b)-> {if(a.equals("ram")) System.out.println(a+""+b);}); //for specific key
        // to print complete map ->  System.out.println(hm);
    }

}