casting an object concept from the Java knowledge base

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casting an object

subject fact

casting an object can only be performed if the source and destination types of the object are related by inheritance - one class must be a subclass of the other added by: JK, source: Teach Yourself Java 2 in 21 Days, 2001-10-19 11:36:17.0
cannot be used to convert an object to a primitive type - use a wrapper class instead
has syntax (classname)object
is a subtopic of Objects 2001-10-19 11:36:18.0
is a kind of casting
may be done implicitly if the destination type is a subclass of the source type added by: JK, source: Teach Yourself Java 2 in 21 Days, 2001-10-19 11:36:18.0
must be done explicitly if the destination type is a superclass of the source type

casting has example
(String)i.next()
2001-10-19 11:36:17.0
has purpose to convert an instance of one data type into another which is a subclass of the original type

casting an object	can only be performed if the source and destination types of the object are related by inheritance - one class must be a subclass of the other
	cannot be used to convert an object to a primitive type - use a wrapper class instead
	has syntax (classname)object
	is a subtopic of Objects
	is a kind of casting
	may be done implicitly if the destination type is a subclass of the source type
	must be done explicitly if the destination type is a superclass of the source type
casting	has example (String)i.next()
casting	has purpose to convert an instance of one data type into another which is a subclass of the original type