is memory to the abstract class allocated ..or objects not
instantiated
- 7 Answers
- 20875 Views
- Synechron, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / garima
for abstract class in java can not be directly instantiated
with new operator Because abstract class is not fully
defined.ie,it's meaningless to implement incomplete class
and Since "classname var =new classname();" is responsible
for allocating the memory ,hence there will be no memory or
object will be instantiated for abstract class.
But we can make reference to abstract class.
example Box b1;
| Is This Answer Correct ? | 16 Yes | 0 No |
Answer / swetha
no,since we cannot instantiate objects for an Abstract class
memory is not allocated for an abstract class
| Is This Answer Correct ? | 8 Yes | 1 No |
Answer / rashid
Abstract class object can no be created so memory is not
allocated for abstract class (or we can say class object)
but we can still call static methods of abstract class and
those static methods can you static member objects of that
class, right?
How do they get executed without memory allocation?
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / this:)
than who one allocate the memory to tha abstract class variable????
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / amit jayaswal
Actually the fact is this that abstract class is used to achieve polymorphism (abstraction 0-100) & for code sharing among closely related concrete classes, there are no need to create and object of abstract class direct using "new" operator, because there are some abstract method & nothing to be allocated for abstract method they are here only for abstraction and there are some another non abstract method (for code sharing) and attribute inside abstract class and memory will be allocated for those members on the basis of their belonging concrete class. while we invoke constructor of their concrete class then the constructor of abstract class will be invoke implicitly.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / rishu
but according to my understanding ,objects of abstract
variables are create but memory can't be allocated as.the
memory of this points to null..we can say tht.objects of
abstract class can't be created.. am i right?
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / sekhar
For abstract classes we can't create an object directly
with the help of the new operator.So memory is not allocated
for abs classes.
| Is This Answer Correct ? | 1 Yes | 3 No |
When will we use them?
What is string in java? String is a data type?
What are the different ways of implementing thread? Which one is more advantageous?
What is an Exception ?
What are some alternatives to inheritance?
what is the difference between thread and runnable types? : Java thread
Differences between external iteration and internal iteration?
What is the base class of all classes?
What is the difference between abstract class and interface?
How many threads can java run?
What is the default execution method in java?
What are the parts of methodology?
Core Java 
