title: jbutton changes text of text field
body: <p>I am simply trying to make an employee clock. I have a keypad of numbers 0-9 and a text field. I want to be able to click the numbers and the numbers will appear on the text field. This seems so easy but I can't find any answers for it.</p>
  
  <p>I'm using netbeans and I created the design of the Jframe in the Design.</p>
  
  <p>I added action events to all of the buttons.</p>
  
  <p>I'm calling each button like Btn0 (the button with 0 on it, Btn1, etc etc.</p>