Java Reference
In-Depth Information
A Java program is made up of classes and objects, which, in turn, are
made up of methods and variables. Methods are made up of statements
and expressions, which are made up of operators.
At this point, you might be afraid that Java is like Russian nesting
matryoshka
dolls. Every one of those dolls seems to have a smaller doll
inside it, as intricate and detailed as its larger companion.
Today's lesson clears away the big dolls to reveal the smallest elements
of Java programming. You'll leave classes, objects, and methods alone for
a day and examine the basic things you can do in a single line of Java
code.
The following subjects are covered:
Java statements and expressions
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Variables and primitive data types
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Constants
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Comments
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Literals
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Arithmetic
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Comparisons
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Logical operators
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