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

You could try this

public static void frequency(String s) {
    String trimmed = s.trim().replaceAll(" +", " ");
    String[] a = trimmed.split(" ");
    ArrayList p = new ArrayList<>();
    for (int i = 0; i < a.length; i++) {
        if (p.contains(i)) {
            continue;
        }
        int d = 1;
        for (int j = i+1; j < a.length; j++) {
            if (a[i].equals(a[j])) {
                d += 1;
                p.add(j);
            }
        }
        System.out.println("Count of "+a[i]+" is:"+d);
    }
}