February 2013
Intermediate to advanced
672 pages
16h 2m
English
book
The Java® Language Specification, Java SE 7 Edition, Fourth Edition
by James Gosling, Bill Joy, Guy Steele, Gilad Bracha, Alex Buckley
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15.16. Cast Expressions
A cast expression converts, at run time, a value of one numeric type to a similar value of another numeric type; or confirms, at compile time, that the type of an expression is boolean; or checks, at run time, that a reference value refers to an object whose class is compatible with a specified reference type.
The parentheses and the type they contain are sometimes called the cast operator.
CastExpression: ( PrimitiveType ) UnaryExpression ( ReferenceType ) UnaryExpressionNotPlusMinus
See §15.15 for a discussion of the distinction between UnaryExpression and UnaryExpressionNotPlusMinus.
The type of a cast expression is the result of applying capture conversion (§5.1.10) to the type whose name appears within the parentheses. ...
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