Discussion :: Java.lang Class
-
What will be the output of the program?
class A { public A(int x){} } class B extends A { } public class test { public static void main (String args []) { A a = new B(); System.out.println("complete"); } }
|
A.
It compiles and runs printing nothing
|
|
B.
Compiles but fails at runtime
|
|
C.
Compile Error
|
|
D.
Prints "complete"
|
Whatsapp
Facebook
Answer : Option C
Explanation :
No constructor has been defined for class B therefore it will make a call to the default constructor but since class B extends class A it will also call the Super() default constructor.
Since a constructor has been defined in class A java will no longer supply a default constructor for class A therefore when class B calls class A's default constructor it will result in a compile error.
Be The First To Comment