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    <p>Here is an example of a method giving you a random dice roll:</p> <pre><code>public static int rollDice() { Random rand = new Random(); int roll = rand.nextInt(6) + 1; return roll; } </code></pre> <p>You would call the function like this:</p> <pre><code>int roll = rollDice(); </code></pre> <p>So it could be integrated in your program like this for example:</p> <pre><code>public static void main(String[] args) { //Display welcome message System.out.println("Welcome to the Math Functions event!"); Scanner keyIn = new Scanner(System.in); Scanner userInput; System.out.print("Press the ENTER key to toss the dice."); keyIn.nextLine(); int tries = 0; int sum = 0; while (sum != 7 &amp;&amp; sum != 11) { // Here is where you call your newly created method int roll1 = rollDice(); int roll2 = rollDice(); sum = roll1 + roll2; System.out.println(roll1 + " + " + roll2 + " = " + sum); tries++; } } </code></pre> <p>The idea is that you want to split up a complicated task into many smaller ones. This way it makes it much easier to debug. The above is just an example, but if you are performing an operation that you realise is repetitive, a function can never hurt.</p> <p>Try to think about your function in the following way: </p> <p><strong>1. What does my function do?</strong></p> <p><strong>2. What data should it provide me with?</strong></p> <p><strong>3. What is the minimum my function requires to provide me with this data?</strong></p> <p>As for a function that counts the characters for a string as mentioned in the comments:</p> <ol> <li>Your function counts the characters in a string. </li> <li>The data that it provides you with is simply a number. </li> <li>All you need to get this number is a string.</li> </ol> <p>Given this information, we can come up with the following function protocol:</p> <pre><code>public static int countCharacters(String myString) { int count = myString.length(); return count; } </code></pre> <p>The return type and value is an <code>int</code> as this is what it needs to provide you with, and <code>myString</code> is the only data the function needs to work. Thinking this way makes code much more maintainable, and you will be able to break up a complicated task into several very simple steps.</p>
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    1. COThank you! Very thorough.
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      1. USSalma
    2. COI tried the random dice roll you wrote as well as another one (a void method) and NetBeans wrote an error--cannot find symbol, symbol: variable rand, location: class JavaOlympics. Why is it doing this?
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    3. CO@Salma this most likely means that you have not declared rand. Before you use it, do: Random rand = new Random();
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