title: How can i make a entry into an array with an unknown size?
body: <p>making a program that: 
  -Asks user for test scores
  -create array for scores 
  -display lowest score 
  -find and adjust mean score by dropping the lowest grade. </p>
  
  <p>so far this is what i have: </p>
  
  <pre><code>public class AdjustingMarks 
  {  
      public static void main (String[] args)
      {
          Scanner scan = new Scanner (System.in);
  
          // Get numbers from the keyboard
          System.out.println("Please input your grade: ");
          int mark = scan.readInt();
  
  
      }
  } 
  </code></pre>
  
  <p>I am a bit confused as to how to make an array with an unknown size? </p>
  
  <p>any help and guidance is appreciated
  thank you. </p>