how to call One constructor from another;
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Answer / ajay
Hi,
Using super you can invoke constructor which is in parent
class. to invoke constructor which is in the same class we
have to use this. for example:
public class Point {
int m_x;
int m_y;
//============ Constructor
public Point(int x, int y) {
m_x = x;
m_y = y;
}
//============ Parameterless default constructor
public Point() {
this(0, 0); // Calls other constructor.
}
. . .
}
| Is This Answer Correct ? | 21 Yes | 5 No |
Answer / tulasi prasad
We can call the parent class constructor from the child
class constructor.
class Parent
{
int a;
Parent(int x)
{
a=x;
}
}
class Child extends Parent
{
int b;
Child(int x,int y)
{
super(x);
b=y;
System.out.println(a);
System.out.println(b);
}
}
class Test
{
public static void main(String args[])
{
Child obj = new Child(1,2);
}
}
| Is This Answer Correct ? | 13 Yes | 1 No |
Answer / talk2sreenivas@gmail.com
. In one constructor, the first statement can be a call on
another constructor in the same class (use keyword this
instead of the class-name) or a call on a constructor of the
superclass (use keyword super instead of the class-name). In
a constructor for a subclass, the first statement must be
either this(…); or super(…); —if not, the call super(); is
automatically inserted for you.
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / srinu
constructor call from one class to another class by useing
the keyword super()(default),super(-)(parameter constructor)
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / gokul d
just by initializing the class(constructor) in the another
class where it has to be invoked.for eg
class a{
a()
{
}
}
class b
{
b()
{
new a();
}
}
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / muthu mariyan.imu
we can call super class constructor if it is no argument constructor.a sub class inherit only default and no argument constructor
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / talk2sreenivas@gmail.com
I think we find that anything you could have done in Java by
calling the default constructor from another constructor,
you can do easily in Curl by calling the default constructor
from a factory.
| Is This Answer Correct ? | 5 Yes | 9 No |
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