Get Big Words

public class GetBigWords {

    // write a method getBigWords that will take one string and return an array of strings of
    // that are of 5 letters or more.

    public static void main(String[] args) {
        // provide a string
        String name= "once upon a time there was a great castle";

        // call the method getBigWords
        String[] a =getBigWords(name);
        // print is only to check the method here
        for (String e: a)
            System.out.print(e+" ");
    }
    public static String[] getBigWords(String a){
        create a large array of strings
        String [] words= new String[100];

        // create a variable to store individual words
        String word = "";

        // the counter is to keep up with the count of individual words over 5 letters long
        int count=0;

        // a loop to check each character if it is a letter
        for (int i=0; i<a.length(); i++){
            char temp = a.charAt(i);
            // use the Character class isLetter() method to check if true
            if (Character.isLetter(temp)){

                // if true add that character to word
                word+=a.charAt(i);

                    // if this is the last character of the string, add the word to the array if it is long enough
                    if (i==a.length()-1 && word.length()>4)
                        words[count] = word;
            }
            // if character is not a letter and less than 5 reset word variable to empty
            else if (word.length()<5)
                word = "";

                // if the character is not a letter and the word is long enough do these things
                else{
                words[count]= word;
                word="";
                count++;
            }

                }
        // for aesthetic reasons only.  To return an array that is only as large as the number of words
        String[] array = new String[count+1];
        System.arraycopy(words,0,array,0,array.length);
        return array;
    }

}