CODEWITHSUNDEEP
javastringmethodsstaticstatic-methods
overduekey
overduekey

Reputation: 51

Finding/Printing out specific words starting with a specific letter

Here is the main:

public class MiscStringOperationsDriver
{
    public static void main(String[] args)
    {
            // Test the wordCount method
            int numWords = MiscStringOperations.wordCount("There are five words here.");
            System.out.printf("Number of words: %d\n\n", numWords);

            // Test the arrayToString method
            char[] letters = {'a', 'b', 'c', 'd', 'e', 'f', 'g'};
            String lettersToString = MiscStringOperations.arrayToString(letters);
            System.out.printf("The string is: %s\n\n", lettersToString);

            // Test the mostFrequent method
            char mostFrequentChar = MiscStringOperations.mostFrequent("aababbcddaa");
            System.out.printf("The most-frequent character is: %c\n\n", mostFrequentChar);

            // Test the beginWithB method
            String wordList = MiscStringOperations.beginWithB(
                            "Batman enjoyed some blueberries and a bacon burger in the Batmobile.");
            System.out.printf("The list of words is: %s\n\n", wordList);
    }
}

All of the methods are in another class. I am struggling with last method which is the beginWithB method. I have everything else working. Here's what I have so far for this method:

 public static String beginWithB(String wordlist) {
    String myStr = wordlist;
    for(String b: myStr.split(" ")){
        if(b.startsWith("b")||b.startsWith("B")){
            System.out.print(b);
        }   
    }

I am struggling to find a way to return the words that start with a "b" or "B" to the main. Any ideas? (And yes, I have to do it this way).

Upvotes: 1

Views: 2825

Answers (1)

rimonmostafiz
rimonmostafiz

Reputation: 1471

Your method looks fine to me, you just need to make a string as you are returning a String. (see the code bellow)

CODE

public static String beginWithB(String wordlist) {
    StringBuilder sb = new StringBuilder();
    String myStr = wordlist;
    for (String b : myStr.split(" ")) {
        if (b.startsWith("b") || b.startsWith("B")) {
            sb.append(b + " ");
        }
    }
    return sb.toString();
}

OUTPUT

The list of words is: Batman blueberries bacon burger Batmobile.

Upvotes: 1

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