Question

This should be quite simple (I think), but I just can’t get it right…:|

The task is as follows:

Ask the user for some input. The input must be split in to single words and put into an array. All words should be counted. If equal words exists, they get a “+1” on the output.
Finally I want to print out and hopefully the right amount of counted words in a list. I got the first two columns right, but the word-counter of equal words gave me a headache. If a word is found to be equal, it mustnt appear twice in the generated list! :!

I am a complete JAVA newbie so please be kind on the code-judging. 😉

Here is my code so far:

package MyProjects;

import javax.swing.JOptionPane;

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

    //User input dialog
    String inPut = JOptionPane.showInputDialog("Write som text here");

    //Puts it into an array, and split it with " ".
    String[] wordList = inPut.split(" ");

    //Print to screen
    System.out.println("Place:\tWord:\tCount: ");

    //Check & init wordCount
    int wordCount = 0;

    for (int i = 0; i < wordList.length; i++) {

        for (int j = 0; j < wordList.length; j++){

            //some code here to compare
            //something.compareTo(wordList) ?

        }

        System.out.println(i + "\t" + wordList[i]+ "\t" + wordCount[?] );
    }

}
}

Answer 1

Thanks for trying to help me. -This is what I ended up doing:

import java.util.ArrayList;

import javax.swing.JOptionPane;

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

    // Text in
    String inText = JOptionPane.showInputDialog("Write some text here");

    // Puts it into an array, and splits
    String[] wordlist = inText.split(" ");

    // Text out (Header)
    System.out.println("Place:\tWord:\tNo. of Words: ");

    // declare Arraylist for words
    ArrayList<String> wordEncounter = new ArrayList<String>();
    ArrayList<Integer> numberEncounter = new ArrayList<Integer>();

    // Checks number of encounters of words
    for (int i = 0; i < wordlist.length; i++) {
        String word = wordlist[i];

        // Make everything lowercase just for ease...
        word = word.toLowerCase();

        if (wordEncounter.contains(word)) {
            // Checks word encounter - return index of word
            int position = wordEncounter.indexOf(word);
            Integer number = numberEncounter.get(position);
            int number_int = number.intValue();
            number_int++;
            number = new Integer(number_int);
            numberEncounter.set(position, number);

            // Number of encounters - add 1;
        } else {
            wordEncounter.add(word);
            numberEncounter.add(new Integer(1));
        }

    }

    // Text out (the list of words)
    for (int i = 0; i < wordEncounter.size(); i++) {
        System.out.println(i + "\t" + wordEncounter.get(i) + "\t"
                + numberEncounter.get(i));
    }

  }
}