## Task
Your task is to create a simple **Scala** application. We've provided a basic template for you. You only need to replace the line `// replace this line with your code` with the appropriate code to display **"Hello World!"** on the screen.


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<link
        rel="stylesheet"
        href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.62.3/codemirror.min.css"
/>
<link
        rel="stylesheet"
        href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.62.3/theme/dracula.min.css"
/>


<link
        rel="stylesheet"
        href="https://codefinity-content-media-v2.s3.eu-west-1.amazonaws.com/courses/c1087363-9025-4c37-8d5e-983a32a007e9/buttons-section/hint-solution-with-copyable-%26%3Dhighlighted-code.css"
/>

<div class="button-container">
    <button
            class="button"
            onclick="toggleBlock1('hint-block1', 'solution-block1')"
    >
        Hint
    </button>
    <button
            class="button"
            onclick="toggleBlock1('solution-block1', 'hint-block1')"
    >
        Solution
    </button>
</div>


<div id="hint-block1" class="block hint-styling-block">
    1. Use the <code>println()</code> method to print the message to the console. <br/>
    2. Put <code>"Hello World!"</code> within the parentheses <code>()</code>. <br/>
</div>

<div id="solution-block1" class="block solution-styling-block">
    
    <textarea id="code-1" class="language-scala">
object Main {
  def main(args: Array[String]): Unit = {
    println("Hello World!")
  }
}</textarea>

    <button class="copy-button" onclick="handleClick1('code-1')">
        <svg
                width="20"
                height="20"
                x="0"
                y="0"
                viewBox="0 0 32 32"
                style="enable-background: new 0 0 512 512"
                xml:space="preserve"
                class=""
        >
      <g>
        <path
                d="m26.121 6.707-3.828-3.828A2.98 2.98 0 0 0 20.172 2H12a3.003 3.003 0 0 0-3 3v1H8a3.003 3.003 0 0 0-3 3v18a3.003 3.003 0 0 0 3 3h12a3.003 3.003 0 0 0 3-3v-1h1a3.003 3.003 0 0 0 3-3V8.829a2.982 2.982 0 0 0-.879-2.122ZM22 5.414 23.586 7H22ZM20 28H8a1.001 1.001 0 0 1-1-1V9a1.001 1.001 0 0 1 1-1h8v3a2.002 2.002 0 0 0 2 2h3v14a1 1 0 0 1-1 1ZM18 9.414 19.586 11H18ZM24 24h-1V12.829a2.982 2.982 0 0 0-.879-2.122l-3.828-3.828A2.98 2.98 0 0 0 16.171 6H11V5a1.001 1.001 0 0 1 1-1h8v3a2.002 2.002 0 0 0 2 2h3v14a1 1 0 0 1-1 1Zm-6-8h-8a1 1 0 0 1 0-2h8a1 1 0 0 1 0 2Zm0 4h-8a1 1 0 0 1 0-2h8a1 1 0 0 1 0 2Zm0 4h-8a1 1 0 0 1 0-2h8a1 1 0 0 1 0 2Z"
                fill="#a6b8e6"
                opacity="1"
                data-original="#000000"
                class=""
        ></path>
      </g>
    </svg>
    </button>
</div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.62.3/codemirror.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.62.3/mode/clike/clike.min.js"></script>


<script src="https://cdn.jsdelivr.net/npm/notiflix@2.7.0/dist/notiflix-aio-2.7.0.min.js"></script>

<script>
    function onPageLoad1() {
        var editor = CodeMirror.fromTextArea(document.getElementById("code-1"), {
            lineNumbers: true,
            mode: "text/x-scala",
            theme: "dracula",
        });

        // Initially hide both the hint and solution blocks
        hideBlock1("hint-block1");
        hideBlock1("solution-block1");
    }

    // Copy Button handler
    const handleClick1 = (codeBlock) => {
        const textarea = document.getElementById(codeBlock);
        const copiedText = textarea.value;

        navigator.clipboard.writeText(copiedText);

        Notiflix.Notify.Success("Copied to clipboard!", {
            timeout: 2000,
            width: "260px",
            position: "center-top",
            textColor: "#ff5549",
        });
    };

    // Function to toggle the visibility of a block
    const toggleBlock1 = (blockId) => {
        const block = document.getElementById(blockId);

        if (block.style.display === "none" || block.style.display === "") {
            hideBlock1("hint-block1");
            hideBlock1("solution-block1");
            showBlock1(blockId);
        } else {
            hideBlock1(blockId);
        }
    };

    // Function to show a block
    const showBlock1 = (blockId) => {
        const block = document.getElementById(blockId);
        block.style.display = "block";
    };

    // Function to hide a block
    const hideBlock1 = (blockId) => {
        const block = document.getElementById(blockId);
        block.style.display = "none";
    };

    const imgElement1 = document.createElement("img");
    imgElement1.src = "nonexistent-image";
    imgElement1.style.display = "none";
    imgElement1.onerror = onPageLoad1;

    document.body.appendChild(imgElement1);
</script>

Dive into Scala programming with this introductory course, covering the essentials from syntax to advanced data types. Discover Scala's benefits, master variables, control structures, arrays, and strings through practical examples and challenges.

First, we'll explore Scala's advantages, how the language works, its syntax, writing basic programs, and the use of comments.

Like every other programming language, Scala is based upon variables and data types, so let's learn about Scala's basic data types, variable type inference, mutable vs immutable types, arithmetic, assignment operators, and character specifics.

Now it's time to master the use of conditional statements and loops which will allow us to make our programs flexible and avoid code repetition. 

Arrays are essential for storing multiple values and manipulate them conveniently. Without further ado, let's learn how to create arrays, process them and apply these concepts in practice.

Finally, we'll learn how to deal with strings in Scala efficiently by discovering the nature of strings, effective iteration techniques, key string methods, and their application.

Introduction to Scala

Writing Your First Program

Task