title: Letting users change array values by dragging a plot line in java
body: <p>I have a bit of a tricky question. I have an ArrayList with double values in it. I would like the users to be able to change these values easily. </p>
  
  <p>Ideally I want to display the array as a line plot and allow users to drag the line. When they click ok, the new line is accepted and saved as an arraylist again. </p>
  
  <p>I have worked with java quite a bit, but I don't know how I can make a draggable line plot and use that as input. Any suggestions are highly valued!</p>
  
  <p>It doesn't even necessarily need to be java. Could be something web based that I could call from java...</p>