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Can we declare class as protected?
What is the scope for this class?
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dipl. ing. Dan- Member Since Mar-2006 | Mar 24th, 2006
Some people might get confused by the many posts. The correct answer to the question "can we declare class as protected?" is YES, BUT only as an inner class. A 'normal' class cannot be protected or private.
// 'Normal' class - only default or public allowed
public class ProtectedOrNot {
// Inner class - public, default, protected, private allowed
protected class InnerClass {
}
public static void main(String[] args) {
}
}
vishal
- Sep 21st, 2017
We cannot declare primary classes as protected for primary classes only "public","final","abstract" are allowed. But point to be noted you can declare inner classes as protected. ...
Srinu
- Jul 8th, 2017
We cannot declare class as protected and private it gives compile time error.
Illegal modifier for the class TestClass; only public, abstract & final are permitted -
What is the advantage of mvc-2 over mvc-1?
PriyankN
- Mar 6th, 2011
The question itself is wrong. It should have been difference between Model1 and Model2. There is nothing called MVC1 in actual. The term MVC itself stands for Model-View-Controller, which clearly sepe...
paromita
- May 23rd, 2009
In MVC 1, the view is not separate from the controller... ie the presentation logic as well as the business logic is written in the same place. However, in MVC 2, the view is separate from the control...
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Why is that the final variable has to be initialized as soon as it is declare?
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r.praveenkumar- Member Since Oct-2007 | Aug 1st, 2008
when a variable is declared as final we cant change its value again. we use final variable to declare a constant so when we declare a variable as final and if we were allowed to not to give its value at the time of declaration it would not make sense so people who designed java made mandatory to give the value when we declare a final variable. then only it will be sensible.
final PI=3.14;
then we cant change PI's value. think if the above statement do not contain a vl it would not make sense.Nitin Maulekhi
- Jul 18th, 2012
final keyword can be applied on:- 1.class 2.member functions(only non-static) 3.data-members(both static and non-static) 4.local variables. 1.by making a class final ,that class cannot be inherited....
Rohit Verma
- Jul 10th, 2012
Like any variable, a final variable can also be first declared and then assigned a value. But it can be only assigned a value once and only once ( as its final variable ). for example :- final Strin...
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Whats difference between Marshalling,UnMarshalling & Serialization,De serialization?
thilina
- Sep 4th, 2016
Marshalling is the process of transforming the memory
representation of an object to a data format suitable for
storage or transmissionvinay789
- Feb 12th, 2009
Marshalling is one kind of converting data and objects into byte streams and unmarshalling is reverse process of this.
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What is the use of Marker Interface ?
Explain the purpose of Marker Interface.When there is no methods in marker interface then what is the use of implementing it?
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jasmin sheeba rani- Member Since Oct-2009 | Oct 6th, 2009
Marker interfaces are also called "tag" interfaces since they tag all the derived classes into a category based on their purpose. For example, all classes that implement the Cloneable interface can be cloned (i.e., the clone() method can be called on them). The Java compiler checks to make sure that if the clone() method is called on a class and the class implements the Cloneable interface.
jasmin sheeba rani
- Oct 6th, 2009
Marker interfaces are also called "tag" interfaces since they tag all the derived classes into a category based on their purpose. For example, all classes that implement the Cloneable interf...
VijayAravind
- Sep 18th, 2009
Marker Interface is a Java interface which doesnt have any methods in it. Marker Interfaces are Serializable, clonable, Singlethreaded model, Event listener. Marker interfaces are implemented by the class or its super class inorder to add some functionality.
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Is WebSphere 6.0 and RAD 6.0 same?
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ahamza59- Member Since Jun-2009 | Jun 4th, 2009
They are the same app, just with 'Rational(tm)' branding instead of 'IBM(tm)' branding.
WSAD has been renamed to RAD. The change in name is to reflect IBM's acquisition and integration of the Rational product line.
WSAD does not have the version 6. WSAD's last version is 5. RAD starts with version 6. It is essentially the same IDE - they are both based on Eclipse and the numbering scheme continues.
WSAD 5 was based on the Eclipse 2.x series, whilst RAD 6 is based on Eclipse 3.x series.ahamza59
- Jun 4th, 2009
They are the same app, just with 'Rational(tm)' branding instead of 'IBM(tm)' branding. WSAD has been renamed to RAD. The change in name is to reflect IBM's acquisition and i...
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Explain how will you pass data from one Server(Tomcat) to another Server (WebLogic)?
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karunasagar- Member Since Jul-2008 | Jul 31st, 2008
One way of transferring data between JVMs across the network would be to use Tangosol's Coherence product (www. tangosol . com/coherence . jsp)karunasagar
- Jul 31st, 2008
One way of transferring data between JVMs across the network would be to use Tangosol's Coherence product (www. tangosol . com/coherence . jsp)
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What is the exact difference between web server and web container ?
Hi friends,Can any one explain me what is the exact difference between web server and web container. How both will work together in web application?
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Ranjith mca- Member Since Jan-2011 | Jan 31st, 2011
Web Server is an implementation of "http" protocol which handles http request and responds. It serves for client and load pages on browser's memory
some of the web servers are
1) Appache tomcat
2) Java web server
3) Jboss
4) Tomcat
In web server 1) 3) 4) only http protocols are implemented.Web Container
There are two web container JSP and Servlet container, both are internet applications in server side, which comes in three tier architecture these are in second tier 1st and 3rd are client and database server.
JSP and Servlet container are application server
JSP runs on JSP container and servlet runs on servlet container
From this you can get how it what using as web applicationRanjith mca
- Jan 31st, 2011
Web Server is an implementation of "http" protocol which handles http request and responds. It serves for client and load pages on browser's memory some of the web servers are1) Appache tomcat2) J...
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