By now, you have mastered using variables. All that is left to do is to gain a diversity of experience with the techniques learned in this hour. You learned how to declare a variety of variable types. By practicing with different variable types and assigning data to those variables, you will perfect the capability to use the most integral part of all programsdata.
You also learned how to use the Popup Hints, the Locals and Watches windows, and the Immediate window. These debugging tools are useful in testing and perfecting your programs at the data and expression levels. You will see these again in later chapters.