private constructor
3 Answer(s)      5 years and 10 months ago
Posted in : Java Beginners

can we extend from a class which is having private constuctor


View Answers

March 9, 2011 at 3:50 PM

No, you cannot.

class A
private A() { 

class B extends A
public static void main(String[]args){
    A a=new A();

March 9, 2011 at 3:53 PM


June 19, 2013 at 2:30 PM

class A
private A() { 
public static A B(){
A obj= new A();
return obj;

class B extends A
public static void main(String[]args){

Related Tutorials/Questions & Answers:
private constructor
private constructor  can we extend from a class which is having private constuctor
Java private constructor
Java private constructor  what is private constructor?what are the uses of writing private constructor in our program
: a call to a constructor method. Constructor methods are special methods... of that type. The new operator creates the object, the constructor initializes
Constructor  what is the advantage of a constructor ? not the purpose of the constuctor? give me some in-depth analysis?   Please visit the following links:
private and protected
private and protected  what is diffrence between private and protected
private method
private method  how can define private method in a class and using it in another class in a same package? my source code: class rectangle{ int...){ this.length=l; this.breadth=b; } private int calculate
private method
private method  how can define private method in a class and using it in another class in a same package? my source code: class rectangle{ int length,breadth; void show(int length,int bredth){ this.length=length
Private Cloud Hosting
Private Cloud Hosting  Hi, What is Private Cloud Hosting? What are the benefits of Private Cloud Hosting? Thanks
private static final
private static final  Why there is necessary to make a variable private static final
call a constructor
call a constructor  How do you call a constructor for a parent class
Java constructor
Java constructor  When does the compiler supply a default constructor for a class
Private variable of class
Private variable of class  Hi..... What keyword allows you to refer to private variables of a class in flex? Please give me an example for that Thanks  Ans: private keyword and this keyword
constructor in servlet
constructor in servlet  Can we use the constructor, instead of init... the constructor instead of init(). There's nothing to stop you. But you shouldn't... your no-arg constructor. So you won't have access to a ServletConfig
Constructor in Servlet.
Constructor in Servlet.  how to write a constructor in Java Servlet?   Servlet is like a POJO .You can create constructor in servlet. You can also use constructor for initialising purpose but it is not a useful approach
constructor inheritance
constructor inheritance  can we inherit constructor ?if not then why yhis example is given class A { public A() { System.out.println("In A ctor"); } } class B extends
constructor or object
constructor or object  object or construct which create first?   A constructor is always created first. Here is an example: class Example { Example(String st){ System.out.println(st); } public
constructor program
constructor program  write a program to calculate the gross salary and net salary of an employee based on the following attributes: empno,empname,emp address,basic,hra,da,ta,vehicle loan,personel loan use the scanner class
constructor in java
constructor in java  Ex: public class A { public A(){ System.out.println("A"); } public A(int i){ this(); System.out.println(i); } } public class B extends A{ public B (){ System.out.println("B"); } public B (int i
java default constructor
Student{ private int rollNo; private String name; } then what would be the default constructor: 1) public Student(){ private int rollNo = 0; private String name = null; } or 2) public Student(){ private int rollNo
using constructor
using constructor  all constructor for matrix class?   The given code implements the Matrix class and show the addition of two matrices. public class Matrix{ int M; int N
Private Java Keyword
Private Java Keyword       private is a keyword defined in the java programming language. Keywords... in java programming language likewise the private keyword indicates the following
private and final - Java Interview Questions
private and final  what is the difference between private modifier and final modifier in java   Hi Friend, Private modifier indicates... private protects the class writer from external code. Thanks
constructor overriding - Java Beginners
constructor overriding  Write a program to demonstrate the overriding of constructor methods
What if the main() method is declared as private?
What if the main() method is declared as private?  Hi, What if the main() method is declared as private? Thanks   Hi, I have found... as private. Visit this link may help you for getting examples with syntax related
constructor - Java Interview Questions
constructor  We cann't override a constructor, i.e., it is almost like a final method, then why cann't we write the constructor as final?  Hi friend, Overriding constructor : * you cannot override
java serializable default constructor
java serializable default constructor  java serializable default constructor
Constructor - Java Interview Questions
Java constructor overloading example  I need Java constructor overloading exampleThanks!  Ans1 : You can not override a constructor as they are not inherited. you cannot override a constructor in the same class
Overloading constructor in flex
Overloading constructor in flex  Hi...... What is overloading a constructor? How do you overload constructors in flex? please tell me about it........... Thanks   Hi..... Action script does not support overloading
constructor - Java Beginners
constructor  what is constructor? give some simple example what..., A java constructor has the same name as the name of the class to which it belongs. Constructor's syntax does not include a return type, since constructors
Constructor - Java Beginners
Constructor  why can use constructor in java .without constructor Can we run program in java..?  to create an object constructor needed.   Hi friend, i am sending code class Constract{ int x,y
Constructor - Java Beginners
Constructor  What is a constructor? What are its special properties?  Hi friend, A constructor, in object oriented programming concept.... It will be called when an object is created for that class. The job of the constructor