what is boxing or unboxing and what is the uses of it in java language, ?
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what is boxing or unboxing and what is the uses of it in java language, ?
by WikiLeaks Sun May 29, 2011 2:35 pm
Boxing & unboxing is the process of converting a primitive value into an object oriented wrapper class (boxing), or converting a value from an object oriented wrapper class back to the primitive value (unboxing).
Java 5 supports automatic conversion of primitive types (int, float, double etc.) to their object equivalents (Integer, Float, Double,…) in assignments, method and constructor invocations. This conversion is know as autoboxing.
Java 5 also supports automatic unboxing, where wrapper types are automatically converted into their primitive equivalents if needed for assignments or method or constructor invocations.For example:
int inative =0;
inative = new Integer(5); // auto-unboxing
Integer intObject =5 ; // autoboxing
Java 5 supports automatic conversion of primitive types (int, float, double etc.) to their object equivalents (Integer, Float, Double,…) in assignments, method and constructor invocations. This conversion is know as autoboxing.
Java 5 also supports automatic unboxing, where wrapper types are automatically converted into their primitive equivalents if needed for assignments or method or constructor invocations.For example:
int inative =0;
inative = new Integer(5); // auto-unboxing
Integer intObject =5 ; // autoboxing
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