Need Explanation for java code

[javainfo]

class a
{
public a get()
{
return this;
}

}
class b extends a
{
public static void main(String args[])
{
a a1=new b(){public a get(){return this;};
System.out.println(a1.getClass.getSuperClass.getName());
}
}

what is output for this program?
I can't understand this program
will u please explain
a a1=new b(){public a get(){return this;};

Above statement explains what concept?

[Katty]

a a1=new b(); By this statement, A new instance of "b" has been created from its parent class that is "a". After that "get" method has been called of the calss a by doing "a.get()" . Check it again that there is no DOT between "a" and "get()" as it is a syntax of java language, so it is mandatory. And this program will not compile instead of giving any output as there are several mistakes about its syntax. Another mistake is in the System.out.println line where there is a space between "na me" of getName method.

[Modifier]

As I think
a a1=new b(){public a get(){return this;};
In this line of code we are making object of “class a” as “a1”
And this object a1 is referenced to “class b” which is calling the function “get()” of class a
For understanding these just try to understand this example
A = 10
B = 20
C = 30
No if I make the object of c and make it reference to b then what will be the value of c
If you think value of c will 30 then you are wrong, value of c will be 20. Because I am referencing the object of c to b, so the value of c will change to 20

Now again if I make the object of b and reference to then what will the value of b and c.
Answer is: b = 10 and c =10.
Because object of “c” is referencing to “b” and object of “b” is referencing to “a”.
In-directly I am referencing the object of “c” to “a”.


As you can see in the above figure the actual memory space is only one i.e. “a” and we are pointing “b” and “c” to same memory space
I hope this would have help you.