Java Reference
In-Depth Information
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This topic focuses on the principles of object-oriented programming.
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Comments do not affect a program's processing; instead, they serve to
facilitate human comprehension.
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Inline documentation should provide insight into your code. It should not
be ambiguous or belabor the obvious.
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Java is case sensitive. The uppercase and lowercase versions of a letter are
distinct.
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Identifier names should be descriptive and readable.
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Appropriate use of white space makes a program easier to read and
understand.
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You should adhere to a set of guidelines that establish the way you format
and document your programs.
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All programs must be translated to a particular CPU's machine language in
order to be executed.
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High-level languages allow a programmer to ignore the underlying details
of machine language.
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A Java compiler translates Java source code into Java bytecode, a low-
level, architecture-neutral representation of the program.
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Many different development environments exist to help you create and
modify Java programs.
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Syntax rules dictate the form of a program. Semantics dictate the meaning
of the program statements.
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The programmer is responsible for the accuracy and reliability of a program.
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A Java program must be syntactically correct or the compiler will not
produce bytecode.
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Object-oriented programming helps us solve problems, which is the pur-
pose of writing a program.
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Program design involves breaking a solution down into manageable pieces.
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Each object has a state, defined by its attributes, and a set of behaviors,
defined by its methods.
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A class is a blueprint of an object. Multiple objects can be created from
one class definition.
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