Your objective

This chapter will be split into a number of topics. It will contain a simple step-by-step process from beginning to end. Here is the outline of our tasks:

• An overview of class access specifiers
• Pros and cons of global access
• Understanding the static keyword
• What is a Singleton?
• Learning about templates
• Templatizing Singletons
• The advantages and disadvantages of only one instance
• The Singleton in action: the Application class
• Design decisions