Box Trace
		The box trace can help you understand how a recursive call works. Label each recursive call in the body of the recursive method. Represent each call to the method by a new box in which you note the method’s local environment. Each box will contain: The values of the references and primitive types of the method’s arguments. The method’s local variables A placeholder for the value returned by each recursive call from the current box. The value of the method itself. When you first create a box, you will know only the values of the input arguments. Fill in the values of the other items as you determine them from the method’s execution. Draw an arrow from the statement that initiates the recursive process to the first box. After you create the new box and arrow, start executing them body of the method. On exiting the method, cross off the current box and follow its arrow back to the box that called the method. Home