Object Oriented Programming: Unit III: Exception Handling and Multithreading
Autoboxing
Definition, Example Java Programs
An automatic conversion of primitive data type into equivalent wrapper type is called as autoboxing.
Autoboxing
Definition: An automatic conversion of
primitive data type into equivalent wrapper type is called as autoboxing.
This is
a new feature of Java5
Example Program
class
AutoboxExample
{
public
static void main(String args[])
{
//auto-boxing,
an int is boxed into Integer object
Integer
obj = 111;
//unboxing
int val
= obj.byteValue();
System.out.println("Object
value = "+obj);
System.out.println("The
primitive value = "+val);
}
}
Output
Program Explanation
In above
program,
(1) We
are autoboxing an integer type value.
(2) Then
using the byteValue() method we are unboxing this value. This method converts
the given number into a primitive byte type and returns the value of integer
object as byte.
(3)
Finally we are displaying both the object value and primitive value.
Object Oriented Programming: Unit III: Exception Handling and Multithreading : Tag: : Definition, Example Java Programs - Autoboxing
Object Oriented Programming: Unit III: Exception Handling and Multithreading
Under Subject
Object Oriented Programming
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