Frequency(Occurance) of words in String

Frequency of words in String , we can count(occurrence) number of words in a string

SOURCE : FrequecyWord.java

import java.util.HashMap;
import java.util.StringTokenizer;

public class FrequecyWord {

	public static void main(String[] args) {
		
		
String currentLine = "india is a great country and its people are of india";
HashMap frequencyMap = new HashMap();
		
		
		
				StringTokenizer st = new StringTokenizer(currentLine, " \t\n\r\f.,;:!?'\""); 
				while(st.hasMoreTokens()){
					String currentWord = st.nextToken();
				
					Integer freq = frequencyMap.get(currentWord);
					
					if(freq==null){
						freq=0;
					}
					frequencyMap.put(currentWord,freq+1);
					
				}
				System.out.println(frequencyMap);
			}
			
		
	}

INPUT

sample input :- "india is a great country and its people are of india";

OUTPUT

{a=1, country=1, are=1, and=1, of=1, its=1, is=1, india=2, great=1, people=1}

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