Calculating frequency of each word in a sentence in java

Question

I am writing a very basic java program that calculates frequency of each word in a sentence so far i managed to do this much

import java.io.*;

class Linked         


        

Answer 1

import java.util.*;

public class WordCounter {

    public static void main(String[] args) {

        String s = "this is a this is this a this yes this is a this what it may be i do not care about this";
        String a[] = s.split(" ");
        Map words = new HashMap<>();
        for (String str : a) {
            if (words.containsKey(str)) {
                words.put(str, 1 + words.get(str));
            } else {
                words.put(str, 1);
            }
        }
        System.out.println(words);
    }
}

Output: {a=3, be=1, may=1, yes=1, this=7, about=1, i=1, is=3, it=1, do=1, not=1, what=1, care=1}