AutoBoxing
and UnBoxing
package
NewFeatures;
/**
*
@author
sanjeeva
*
boxing -
automatic conversion of Primitive Data types into its equivalent Wrapper
*
unboxing
- opposite
operation
*
- [ Wrapper
( Primitive : int
-->
Wrapper : Integer) ]
*
comes with Java 5
*
*
Advantage of AutoBoxing and unboxing :
*
- no need
conversion between Primitive and Wrappers manually ( so less coding )
*
*/
public
class
AutoBoxingUnBoxingExample {
/**
* @param
args
*/
public
static
void
main(String[] args) {
AutoBoxingUnBoxingExample
boxingExample = new
AutoBoxingUnBoxingExample();
boxingExample.doExecute();
}
private
void
doExecute(){
int
a = 50;
Integer
b = new
Integer(a); //Boxing
Integer
c = 5; //Boxing
Integer
d = b + c;
System.out.println("a
| b | c | d --> " + a + "
| " + b + "
| " + c + "
| " + d);
//----------------------------------
Integer
e = new
Integer(100);
int
f = e; //unboxing
System.out.println("e
| f --> " + e + "
| " + f);
if(e
< 200) //unboxing
System.out.println("true");
}
}
