February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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Scope of a for Statement’s Control Variable
If the initialization expression in the for header declares the control variable (i.e., the control variable’s type is specified before the variable name, as in Fig. 5.2), the control variable can be used only in that for statement—it will not exist outside it. This restricted use is known as the variable’s scope. The scope of a variable defines where it can be used in a program. For example, a local variable can be used only in the method that declares it and only from the point of declaration through the end of the method. Scope is discussed in detail in Chapter 6, Methods: A Deeper Look.
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