The AdditionExample Applet

Introduction

In this example, it is shown how to set up a simple applet for use in a WeBWork problem. The complete code for the applet, as well as the corresponding PG file, can be downloaded from (add download site). The applet, shown below, asks for the sum of two integers. Notice that there are no buttons for checking the answer in the applet, since this will be handled by WeBWork.

Initial Setup

The initial code for the applet can be downloaded from (add download site), or it can be created by the following steps.

1. Create a new applet in Flash and draw the controls as shown in the picture above. The first two text fields are of type Dynamic Text, and the rightmost one is of type Input Text
2. Name the text fields, respectively, txtFirstNumber, txtSecondNumber and txtResult.
3. Create a new ActionScript 3.0 class file and add the following code:

package {
	import flash.display.MovieClip;

	/*
		Class: AdditionExample
		
		A simple example of an applet for a WeBWork problem.
		
		This is the starting point for the tutorial on how to set up
		the interface between a Flash applet and WeBWork

	*/
	public class AdditionExample extends MovieClip {
		
		/*
			Constructor: AdditionExample
			
			Constructs an object of class <AdditionExampleStart>.
		*/
		public function AdditionExample() {
			//The following statments are used just for testing the applet
			//offline, and should be commented out in the online version.
			//When used in a WeBWork context, these are set by setConfig()
			txtFirstNumber.text = "9";
			txtSecondNumber.text = "7";
		}
	}
}
 

save it as 'AdditionExample.as.