Interested to Buy Any Domain ? << Click Here >> for more details...
diff between abstract methods and interfaces with programing
(code) example?
- 2 Answers
- 5292 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / naresh p
an abstract class contains the concrete methods as well
abstract methods. It may instance variables and static
final variables
an interface contains only abstract methods. all the
variables are by default static and final.
an abstract class contains constructor where as an
interface does not have constructors...
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / karthik
abstract class A
{
protected abstract void show();
}
public class xx extends A
{
protected void show()
{
System.out.println("karthik ok");
}
static void main(String aa[])
{
xx ob=new xx();
ob.show();
}
}
But in Interface
interface A
{
protected abstract void show();
}
public class xx implements A
{
protected void show()
{
System.out.println("karthik ok");
}
static void main(String aa[])
{
xx ob=new xx();
ob.show();
}
}
modifier protected not allowed here
protected abstract void show(); in Interface
Because Default public method
But in Abstract class we can have protected
interface A
{
int x;//Error we should need initial value
}
| Is This Answer Correct ? | 1 Yes | 0 No |
What is class and object in java?
What are basic keywords?
How many types of equations are there?
How do you create a reference in java?
What ide should I use for java?
What is array sorting in java?
What is the use of singleton class?
What is a newline character in java?
How many objects are created when we create String class object using new operator?
What happens if we override only equals?
What is the full meaning of java?
Which keyword specify that a variable is effectively final ?
Core Java 
