constructor in servlet

Home Answers Viewqa Servlet-Interview-Questions constructor in servlet

QuestionAsk Questions?

Vijay Kumar

constructor in servlet
1 Answer(s) 2 years and 6 months ago
Posted in : Servlet Interview Questions

Can we use the constructor, instead of init(), to initialize servlet?

View Answers

November 2, 2010 at 1:08 PM

Yes , of course you can use the constructor instead of init(). There's nothing to stop you. But you shouldn't. The original reason for init() was that ancient versions of Java couldn't dynamically invoke constructors with arguments, so there was no way to give the constructur a ServletConfig. That no longer applies, but servlet containers still will only call your no-arg constructor. So you won't have access to a ServletConfig or ServletContext.

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...("Its a servlet constructor"); } protected void doGet(HttpServletRequest

constructor in servlet
constructor in servlet Can we use the constructor, instead of init(), to initialize servlet? Yes , of course you can use the constructor instead of init(). There's nothing to stop you. But you shouldn't

constructor
: a call to a constructor method. Constructor methods are special methods... of that type. The new operator creates the object, the constructor initializes

Constructor
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: http://www.roseindia.net/java/java-tips/oop/constructors

Java constructor
Java constructor When does the compiler supply a default constructor for a class

call a constructor
call a constructor How do you call a constructor for a parent class

Servlet
Servlet Why init() is required to perform initialization activities instead of constructor

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 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 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

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 constructor

About Constructor

servlet
com.ilp.tsi.um.bean.BankBean; import com.ilp.tsi.um.service.BankService; /** * Servlet...() { super(); // TODO Auto-generated constructor stub... Auto-generated constructor stub } /** * @see HttpServlet

constructor overriding - Java Beginners
constructor overriding Write a program to demonstrate the overriding of constructor methods

Constructor Chaining Answer
Java NotesConstructor Chaining Answer Answers to the question in Constructor Chaining. Grandparent() constructor Parent(25) constructor Parent() constructor Child() constructor Copyleft 2003 Fred Swartz MIT License, Last

Java private constructor
Java private constructor what is private constructor?what are the uses of writing private constructor in our program

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

java default constructor
be the default constructor: 1) public Student(){ private int rollNo = 0; private... the space in memory and initializes the fields. So, in the default constructor you can initializ your fields with a value or you can simply create a constructor

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 Chaining Exercise 1
_______________________________ The first line of every constructor must be either A this call to another constructor in the same class. A super call to a parent constructor. If no constructor call is written as the first line

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

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

Calling Constructor in Spring
Calling Constructor in Spring In the given example you will be learning about a constructor and how to call a constructor in the Spring. Declaring constructor injection

Constructor - Java Beginners
Constructor Do u have a constructor example program that has an input type in variables? Hi friend, Code input type variables in Constructor : import java.io.*; class another{ another() throws Exception

program for default constructor in java
program for default constructor in java class Box { double l; double b; double h; Box

Constructor in java
When you create a new instance (a new object) of a class using the new keyword, a constructor for that class is called. Constructors are used to initialize... links Constructor in Java

what's the purpose of constructor in abstract class?
what's the purpose of constructor in abstract class? what's the purpose of constructor in abstract class

What is the difference between a constructor and a method?
What is the difference between a constructor and a method? Hi, What is the difference between a constructor and a method? Hi, I have found a good link of Java program related to difference between constructor

Constructor Overloading in Java
Constructor Overloading in Java Here, you will learn more about Constructor and how... about the Constructor that are overloaded in the given program with complete code

Explain the parameters of Font class constructor.
Explain the parameters of Font class constructor. Explain the parameters of Font class constructor. Java Font class: Font(String name,int style,int size): It creates a new Font from the specified name, style

Constructor overloading in java
Constructor overloading in java In this section we will discuss about constructor overloading in java. Constructor overloading is not much different from... name having different signature but in case of constructor overloading you have

Spring Constructor Injection
Basic Constructor Injection In this example you will see how the Spring beans... for the constructor, and then assign the argument. This all process can also be said as injecting the argument into your bean and widely known as constructor

Spring Autowiring Constructor
Spring Autowiring Constructor In this tutorial you will see an example of spring autowiring Constructor. The Autowiring is done by matching data type of property name. Student.java package

Constructor Inheritance
Constructor Inheritance ... the class. Constructor declaration are just like method declaration, except... provides us with a default constructor to the class having no arguments

JavaScript Array Constructor
JavaScript Array Constructor In this example you will study how to use the constructor property in JavaScript. The constructor property of JavaScript returns a reference

Java - Constructor in java
Java - Constructor in java .... Constructor creates a instance for the class. Constructor initiates (initialize) something related to the class's methods. Constructor is the method which name is same

PHP Constructor and Destructor
PHP Constructor & Destructor: Like other OOP based languages PHP also supports constructor method for classes. As any other language's constructor method, in PHP constructor method is called for every object creation. We can call

How do you call a constructor for a parent class?
How do you call a constructor for a parent class? How do you call a constructor for a parent class

Spring Constructor Injection Example
Spring Constructor Injection Example In Spring Framework the constructor...; An Example of Constructor Injection is given below StudentBean.java package...;constructor-arg index="0" type="int" value="001"

Servlet - JSP - JSP-Servlet
Servlet - JSP Here is my complete code. all my code is running with out any error. the for loop in servlet is running as many times as my checkboxes... Servlet Code: ---------------------- package com.servlet; import

What are constructors ? explain different types of constructor with example
What are constructors ? explain different types of constructor with example Hi, What are constructors ? explain different types of constructor... the constructor for that particular class. For every class we have at least one own

Constructor Exception in Java
Constructor Exception in Java ... that help you in understanding program for handling Constructor exception.A.... Constructor initializes a new object belonging to the class automatically. The program

Spring Constructor arg type
Constructor argument type matching In this example you will see how to inject the arguments into your bean by matching the constructor arguments type...;net.roseindia.ConstructorInjection"> <constructor-arg type="

Spring Constructor arg index
Constructor Arguments Index In this example you will see how inject the arguments into your bean according to the constructor argument index...; <constructor-arg index="0" value

Ask Questions?

If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.

Ask your questions, our development team will try to give answers to your questions.

Tutorial Topics