A Review of Stacks and Their Uses
Stacks are a basic data type in the computing world. They store items of data in ordered lists that are typically accessed from one end only in a last-in/first-out manner. A stack is similar to an inbox tray; items are placed on the top (“pushed”) and also removed from the top (“popped”). Figure 7.1 illustrates a simple stack.
Figure 7.1. The workings of a simple stack.
Due to their simplicity and low-level hardware support, stacks are extensively used in most computer architectures. They provide a convenient and efficient means of storing data, usually for short-term use, such as the local variables in a method ...
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