help with "cannot find symbol - class Scanner" error
<p>This is my Code</p>

<pre><code>public class Workshop3
{
    public static void main (String [] args)
    {
        System.out.println ("please enter radius of circle");
        double radius;
        Scanner keyboard = new Scanner (System.in);
        keyboard.nextDouble (radius);
    }
}
</code></pre>

<p>the error i recieve is </p>

<p>"cannot find symbol - class scanner" </p>

<p>on the line </p>

<p>"Scanner keyboard = mew Scanner (System.in);"</p>

<p>I'm very new to programming and any help would be greatly appreciated</p>
