Does a class inherit the constructor of its super class?if
it does, how can you hide that constructor? if it doesnot
how can you call it from the sub class?
Answers were Sorted based on User's Feedback
Answer / pandu
Hi ,
constructor is never been inherited from superclass to
subclass.
we can call the Super class constructor in Sub class
by using
Super();
that too this stement should be first line in method.
Best Regards.
| Is This Answer Correct ? | 10 Yes | 1 No |
Answer / hanu
there is an exceptional case for this.i.e when you call
derived class parameterised constructor and if you do not
call any of the super class constructor then bydefault the
superclass default constructor gets executed prior to the
derived argument constructor then the derived class
parameterised constructor gets executed.
example code:
class A
{
A()
{
System.out.println("in Class A");
}
A(int c)
{
System.out.println("in Class A"+c);
}
};
class B extends A
{
B()
{
System.out.println("in Class B");
}
B(int z)
{
System.out.println("in Class B"+z);
}
};
class Dead
{
public static void main(String[] args)
{
System.out.println("Hello World!");
//B b=new B();
B d=new B(20);
}
}
output:
---------- java ----------
Hello World!
in Class A
in Class B20
Output completed (0 sec consumed) - Normal Termination
| Is This Answer Correct ? | 1 Yes | 3 No |
How to find the length and capacity of a string buffer ?
Difference between abtsract & final
difference between java ,c#&java,c++
In method overloading ,if i change the return type to Long instead of INT,is the program execute
Which is fastest collection in java?
What is the use of isempty in java?
how to fing linkedlist is circular or not?
how to convert mm/dd/yy to dd/mm/yy using collections in java.
What is a layout manager and what are different types of layout managers available in java awt?
In which language JVM (Java Virtual Machine) is implemented
Why ArrayList class is not a synchronized class and why it is not a thread safe class? explain
What is variable length arguments in java?