Interested to Buy Any Domain ? << Click Here >> for more details...
why the abstract class has default constructor?
- 2 Answers
- 11249 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / ranganathkini
A class has a constructor so that when an instance of the
class is created, the fields of the class can be setup to a
initial valid state.
Abstract classes define partial implementation of a public
contract. Which means that it may implement some of the
methods and contains partially implemented methods that are
marked abstract.
Since abstract classes can have partial implementation and
such partial implementation can include fields of the class,
a constructor becomes necessary so that those fields are
initialized to a valid default state when they are created
thru the constructor of their concrete subclasses.
| Is This Answer Correct ? | 12 Yes | 4 No |
Answer / amandeep
A Abstract Class Can't Have An Default constructor........Cause It Can't Have An Instance Of It.....
| Is This Answer Correct ? | 2 Yes | 10 No |
What is the difference between yielding and sleeping?
Given: 11. public static void main(String[] args) { 12. Integer i = uew Integer(1) + new Integer(2); 13. switch(i) { 14. case 3: System.out.println(”three”); break; 15. default: System.out.println(”other”); break; 16. } 17. } ‘What is the result? 1 three 2 other 3 An exception is thrown at runtime. 4 Compilation fails because of an error on line 12.
Explain yield() method in thread class ?
What is a condition in programming?
How to add panel to a Frame?
What is substring 1 in java?
What are the ways to instantiate the class class?
How do you make an arraylist empty in java?
How can we make copy of a java object?
Is static a singleton?
Which sorting is best in java?
What are advantages of using Java?s layout managers than windowing systems?
Core Java 
