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In this fourth problem, you will complete the topValue() method. This method returns the top element of the stack, WITHOUT removing it....
X1369: ArrayStack - topValue
In this fourth problem, you will complete the
topValue() method. This method returns the top
element of the stack, WITHOUT removing it.
Remember, the stack is
stored in the instance variable (stack) you
created in a previous problem.
Worthy of note, a stack is a LIFO - last in, first out
structure. You always add at one end of the linear
structure and remove from the same end.
You might want to look at the documentation for
ArrayList
to refresh your memory of how to use that class.
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