Hour 5. Storing and Changing Information in a Program
What You’ll Learn in This Hour:
• Creating variables
• Using the different types of variables
• Storing values into variables
• Using variables in mathematical expressions
• Storing one variable’s value into another variable
• Increasing and decreasing a variable’s value
In Hour 2, “Writing Your First Program,” you used a variable, a special storage place designed to hold information. The information stored in variables can be changed as a program runs. Your first program stored a string of text in a variable. Strings are only one type of information that can be stored in variables. They also can hold characters, integers, floating-point numbers, and objects.
During this hour, you learn more ...
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