Word count from text

Question

This is my code to work out the length of a word:

public class WordCount {
public static void main (String args []) {
    String text;
    text = "Java";
    System.out.println (text);

    //Work out the length
            String [] input = text.split(" ");
            int MaxWordLength = 0;
            int WordLength = 0;
                for (int i = 0; i < input.length; i++)
                {  
                    MaxWordLength = input[i].length();
                    WordLength = MaxWordLength;                         
                } //End of working out length

                //Work out no. of words
                int[] intWordCount = new int[WordLength + 1];
                for(int i = 0; i < input.length; i++) {
                    intWordCount[input[i].length()]++; }

                for (int i = 1; i < intWordCount.length; i++) {
                    System.out.println("There are " + intWordCount[i] + " words of length " + MaxWordLength);
                }
        }
    }

The problem I am having is that when it prints out the length of the word, I get these results:

Java
There are 0 words of length 4
There are 0 words of length 4
There are 0 words of length 4
There are 1 words of length 4

But when I change the text to "J" this prints out:

J
There are 1 words of length 1

Any idea why it's doing that? P.S. I'm kind of new to Java and any help would be appreciated.

Answer 1

I am not sure if you want to count letter or word because your code counts letter to me.

Just you need to change this line from

String [] input = text.split(" ");

to

String [] input = text.split("");

and your program works perfectly.

input: Java

output: There are 4 letters of length 1 <- Hope this is the expected result for you

Source: Splitting words into letters in Java

You can achieve this in better and less headache by using Lambda in Java

Code:

import java.util.*;

public class LambdaTest     
{
    public static void main (String[] args)
    {

         String[] st = "Hello".split("");
         Collection myList = Arrays.asList(st);
         System.out.println("your word has " + myList.stream().count() + "letters");

    } 
}

Output:

your word has 5 letters CLEARLY in length 1

My answer when you cleared what your issue is

Code:

public class WordCount      
{
    public static void main (String[] args)
    {
      String text ="";
      int wordLenght = 0;
      text = "Java is awesome for Me";
      System.out.println (text);


            String [] input = text.split(" ");
            List<Integer> list = new ArrayList<>();

            for (int i = 0; i < input.length; i++)
                {  
                    list.add(input[i].length());

                } 
            Set<Integer> unique = new HashSet<Integer>(list);

           for (Integer length : unique) {
               System.out.println("There are " + Collections.frequency(list, length) + " words of length " + length);
}
    } 
}

output:

  There are 2 words of length 2
  There are 1 words of length 3 
  There are 1 words of length 4 
  There are 1 words of length 7

Note: Read about HashSet and Set in Java

Source: http://javarevisited.blogspot.com/2012/06/hashset-in-java-10-examples-programs.html