Imran Khan

• Dec 10th, 2011

Garbage collector uses for the memory deallocation, it does when we do not have a longer use of object.deallocation can be done both manually and automatically. We use the .gc function for the garbage collection.

jimmy514in

 Profile Answers by jimmy514in Questions by jimmy514in

• May 17th, 2010

Garbage collection is used to collect objects which cannot be referenced. Which occupy system memory.  The algorithm collects such references of objects and permits reuse of memory.  It is u...

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Abhi

• Mar 4th, 2012

Here is the code

Code
 request.setAttribute("attri_name","attrib_value");
//u can set as many attributes as u want n retrieve it by "request.getAttribute("attrib_name");
RequestDispatcher rd=request.getRequestDispatcher();
rd.forward(request,response);

jimmy514in

 Profile Answers by jimmy514in Questions by jimmy514in

• Jul 5th, 2010

One question...Can we encapsulate the values in the request object and pass using servlets so that the next servlet receive it..??Or we can use session object to encapsulate the information as well right..?Please clarify regarding the same.Regards.Jimmy514in

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Polymorhism: is a feature of OOPl that at run time depending upon the type of object the appropriate method is called.Inheritance: is a feature of OOPL that represents the "is a" relationship between different objects(classes). Say in real life a manager is a employee. So in OOPL manger class is inherited from the employee class. Encapsulation: is a feature of OOPL that is used to hide the information.

gvjava

 Profile Answers by gvjava Questions by gvjava

• Dec 8th, 2010

We can't create the object directly for the abstract classes,we can create object indirectly when we are inheriting that is called as polymorphism.  ex:  abstract class man   ...

veenanimbalkar

 Profile Answers by veenanimbalkar Questions by veenanimbalkar

• Dec 6th, 2010

Polymorphism is the major pillar of OOPs and Java. There are two types of polymorphism static time polymorphism & dynamic type of polymorphism. Static time polymorphism is called as" method overloa...

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pyasodha

 Profile Answers by pyasodha Questions by pyasodha

• Sep 8th, 2010

1) Synchronization - ArrayList is not thread-safe whereas Vector is thread-safe. In Vector class each method like add(), get(int i) is surrounded with a synchronized block and thus making Vector class...

sun

• Oct 4th, 2005

As vector is synchronized class so execution wil be slower then arraylist,but that will be thread safe.arraylist execution fast but not thread safe.

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sarabjit

 Profile Answers by sarabjit Questions by sarabjit

• Jul 8th, 2010

Encapsulation means wrapping  data n associated  funtion into a single unit .The data  is accessible to only those functions which are wrapped in the class

deepchandra

 Profile Answers by deepchandra Questions by deepchandra

• Jul 6th, 2010

Hiding the information within class is called Encapsulation.

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nithui

 Profile Answers by nithui Questions by nithui

• Mar 14th, 2009

Serialization is the process of converting an object into a sequence of bits so that it can be stored on a storage medium (such as a file, or a memory buffer) or transmitted across a network conne...

uga durga prasad

• Aug 14th, 2007

Serialization is the process of? storing the state of an object into IO Stream, it is a Marker interface and it will not have any methods in it.

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murali

• Dec 12th, 2006

 In c,there are argc and argv.argc is passed to argv and argv is used to store characters.in java there is only args.we pass a String value to it.

Mohan

• Sep 13th, 2005

In C the argument counter starts from the program name itself.But in the case of  Java the argument count starts after the classnamefor eg: java testArg rao rao1 the arg[0] is "rao " here(in Java )But in the case of C it comes to "testArg" 

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chandrakanth

• Sep 27th, 2006

In singleton class ,only one time the instance wil create.Example....public class Sin{  static Sin s=null;    public static void main(String a[])  {      create...

artika

• Sep 12th, 2006

when only one instance of a class can be madethen wat's the purpose of makin it as a class

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meenama

 Profile Answers by meenama Questions by meenama

• Apr 25th, 2008

Below are three signatures:public final void notify()public final void notifyAll()public final void wait(long?timeout)

meenama

 Profile Answers by meenama Questions by meenama

• Apr 25th, 2008

The methods of Thread class like wait(), notify and notifyAll() are FINAL

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Radhey Krishna Yadav

• Apr 18th, 2006

Serialization is a techniques which maintain the state of the object.In java automatically call the destructer and destroy the object by the gc()method.We want to my object state can be maintain so we...

chandanareddy

 Profile Answers by chandanareddy Questions by chandanareddy

• Feb 1st, 2006

Serialization is a java technology for creating persistent object.A persistent object is the one whose state can survive beyond the application boundry in which object was created.Representing an object state in series of bytes is called Serialization

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majisukumar

 Profile Answers by majisukumar Questions by majisukumar

• Sep 8th, 2010

By using finalization,we can define specific actions that will occur when an object is just about to reclaimed by the Garbage Collector.e.g - If an object is holding some nonjava resources such as fil...

meenama

 Profile Answers by meenama Questions by meenama

• Apr 30th, 2008

We need not call the finalize() method directly. The method is called automatically by the garbage collector when it determines no more references to the object exist. But when we need to cl...

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satyamaddukuris

 Profile Answers by satyamaddukuris Questions by satyamaddukuris

• Jun 24th, 2009

AWT components are heavy weight. Swing components are light weight follows MVC architecture

Radhey Krishna Yadav

• Apr 18th, 2006

awt is not platform independent whereas swing is plateform independent because the resolution of awt is defferent 16-bit computer and 32-bit computer whereas in case of swing resolution is same on dif...

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praju86

 Profile Answers by praju86 Questions by praju86

• Sep 26th, 2010

Inheritance is one of the concepts which makes Java an OOP language. Two other important features are 1.POLYMORPHISM-concept which permits "single interface, multiple functionalities". 2.ENCAPSULAT...

Gupta Pravin Kumar

• Oct 6th, 2006

INHERITANCE: Inheritance is the process by which one object can acquire the properties of another. The best example for this is C,C++, and JAVA languages itself. Java is being derived from C++ which...

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ganeshb

 Profile Answers by ganeshb Questions by ganeshb

• Mar 23rd, 2006

JVM = Java Virtual MachinKVM = Kompact java Virtual MachineCVM = C Virtual MachineJVM is a processing engine for J2SE APIs, whereas KVM and CVM are used in embedded environment.KVM and CVM are subset ...

jimz

 Profile Answers by jimz Questions by jimz

• Nov 30th, 2005

Ja va virtual machine in an interpreter not an execution engine, though it is considered like that...

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sivanesh.a

 Profile Answers by sivanesh.a Questions by sivanesh.a

• Dec 24th, 2006

Access modifiers: static, final,access specifiers: public, private, protected.

CoolOne

 Profile Answers by CoolOne Questions by CoolOne

• Apr 19th, 2006

What is difference in functionality

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sivanesh.a

 Profile Answers by sivanesh.a Questions by sivanesh.a

• Dec 24th, 2006

Use ...System.gc() method

Ravi Nagar

 Profile Answers by Ravi Nagar Questions by Ravi Nagar

• Oct 24th, 2005

Even calling the garbage collector method doesn't ensure that garbage collection will take place. Its just a request method.

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Please give me answer ,if know with code also

p.rajinikanth

 Profile Answers by p.rajinikanth Questions by p.rajinikanth

• Jul 10th, 2007

We need to consider different paramaters when chossing between the drivers. The following summarizes the types of drivers to use in different situations. Performance with stored procedures: Type 2Scal...

Farkalit Usman

• Mar 20th, 2006

Type IV (Native-Protocol Pur Java Driver), which is specific to Vendor and extremly faster than the first three.

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Shweta

• Oct 27th, 2006

No, In Inheritance only the public and protected memberes of the base class can b inherited by the derived class. Private members r only accessible to the member functions of the class.

manjunath shenoy

• Jan 18th, 2006

NO,not at all.Infact the access specifier PRIVATEensures that data members of that class is not inherited.This helps in the concept so called data hiding or encapsulation.If u want that ur code can b inherited then use PUBLIC,or PROTECTED.These allow inheritance.

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utpal_utkalit

 Profile Answers by utpal_utkalit Questions by utpal_utkalit

• Nov 16th, 2006

 Here is the snap shot of the working solution to the said question..try{System.out.println("class name is "+class_name);Class cls=Class.forName(class_name);Constructor[] ctorlist=cls.getConstruc...

utpal utkalit

• Nov 15th, 2006

I mean,how would you construct object thru virtual constructor...

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A) Synchronisation

Deepika84

 Profile Answers by Deepika84 Questions by Deepika84

• Apr 15th, 2008

Synchronization

deepthi.javatest

 Profile Answers by deepthi.javatest Questions by deepthi.javatest

• Dec 13th, 2006

I gave synchronization but got marked wrongly check different spellings

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