Chapter 5. Storing and Changing Information in a Program

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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

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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 ...

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