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Unformatted text preview: variables. The general structure of the programs is the following: import java.util.* ; These lines are present only in
those programs which read
data from the keyboard. class ClassName
public static void main( String not_in_use )
Scanner keyboard = new Scanner( System.in ) ; Variable declarations.
Action statements that modify and print
the contents of the variables that
were declared above.
} As was already discussed in Chapter 2, the structure of our first programs is such that a
static method named main() contains the action statements of the program, and the
main() method is written inside a class declaration. At this phase, we do not attempt to
profoundly understand the meaning of the class declaration. We’ll just try to figure out
how the internal statements of method main() operate. 100 Chapter 5: Variables and other basic elements in Java programs 5.1 Integer variables (int, short, long, byte, char)
A variable in a source program is a basic program element that can be used to store a
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This document was uploaded on 01/20/2014.
- Winter '14