Boxing

Abstract

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• Facilities the integration between OOP concepts with low level Primitive Datatype
• Take primitive datatype & put it inside an OOP Object of Wrapper Class
• Aka converting primitive to object

Auto-boxing

• Boxing but without explicitly the use of new keyword, Compiler does the work automatically

Unboxing

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int intVal = numObject.intValue();

• The opposite of Boxing

Auto-unboxing

• Unboxing but without explicitly calling built-in method