Program to explain Auto-Boxing and Auto-Unboxing in Java

// Program to explain Auto-Boxing and Auto-Unboxing.
class Wrapper2
{
public static void main( String args[ ] )
{
 // Autoboxing
 Integer iOb = 100;  
 // Auto-unboxing
 int i = iOb;  
 System.out.println(i + " : " + iOb); 
}
}

Output:
100 : 100