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Message:

multiple constructor - answer

Posted by Y.M.Sudarsan on August 08, 2000 at 10:13 AM

> In a Multiple constructor class, a constructor can call another constructor. How to call it?
> Assume there are three constructors in the class you consider.
> Please write a class that contains:

> a) three constructor (and some other codes)
> b) the third constructor calls the second constructor and the second one calls the first

> write a sub-class (extends the first class) that contains one constructor invoking
> one of constructor in the super-class.

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The solution for you problem is as seen in the following code.
You invoke the constructor by ceating a new object.
//code by Y.M.Sudarsan sonaali@rediffmail.com
class Constructor
{
public static void main(String args[])
{
second s1 = new second();
}
}

class f
{
f()
{
System.out.println("empty cons");
}
f(int i)
{
System.out.println("cons with i "+i);
new f();
}
f(String s)
{
System.out.println("cons with s "+s);
new f(10);
}
}
class second extends f
{
second()
{
super("test constructor");
}
}