KAPIL GUPTA

• Apr 5th, 2006

Ya its a very good site

HSridhar

• Apr 3rd, 2006

Generally every class is a sub class of Object class.This is because JVM requires certain linking and loading of classes during runtime whenever an object instance is created. Many of such native meth...

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The main reason you cannot create a button by Button bt1= "abc"; is because "abc" is a literal string (something slightly different than a String object, bytheway)and bt1 is a Button object. That simple. The only object in Java that can be assigned a literal String is java.lang.String. Important to note that you are NOT calling a java.lang.String constuctor when you type String s = "abc";For example String...

sandy4u_bits2002

 Profile Answers by sandy4u_bits2002 Questions by sandy4u_bits2002

• Apr 4th, 2006

sir   string x="abc" string y ="abc"  i dont think that here they refer to same object.I have refer the complete reference..automatically when u asign stringz like this ..different objects will b created.so give me answer gain indetail

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Radhika

• Apr 3rd, 2006

Hi guys,  After going through all of your answers, the question still remains.As per my knowledge, a servlet will run inside a servlet container and not in the webserver.Please clarify if I'm rig...

Nagesh

• Oct 23rd, 2005

Servlet container is needed for running servlet, not web server. Application server contains Servlet container as well as EJB container. Web servers are for hosting web(http server).I take back on me...

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Leena Herwadkar

• Mar 30th, 2006

i want to know details of singleton class with example

Pankaj

• Sep 27th, 2005

Java wrappers are classes that wrap up primitive values in classes that offer utility methods to manipulate the values. If for example you want to store a set of int values in the elements of a Vector...

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Kevin

• Mar 30th, 2006

Sorry, it should betextfield.requestFocusInWindow();

Kevin

• Mar 30th, 2006

Textbox.focus();

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K.V.N.R.MURALI KRISHNA

• Mar 29th, 2006

If you decare a null/tagged/marked interface then its give some information about jvm that information is its going to be serializable.and this interface doesn't have any methods.

venu

• Mar 27th, 2006

We have runnable interface that is also a marker interface but it is haveing run method.what about that

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A) TrueB) False

rajnish15_kumar

 Profile Answers by rajnish15_kumar Questions by rajnish15_kumar

• Mar 29th, 2006

I also chose NO, but it has been told wrong.Y?I THINK SOMETHING WRONG THERE.

advitiya

• Dec 21st, 2005

NObecause of  that,object can't free from memory when object is still reference

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madhukar

• Mar 28th, 2006

once string object is created we can not change the value means its content,if want make changes a new string object is creted,old object will be garbagecollected for certain amount of time,so java so...

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panknitu

 Profile Answers by panknitu Questions by panknitu

• Mar 27th, 2006

yes we can dot it. suppose class A and class b has access specifier ie. default but these classes[three] are put togetherin a single package then it can be possible.

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sireesh

• Mar 25th, 2006

If we want to handle all the request types from a single method then the servlet can simply implement the service() method.However if we choose to implement the sevice() method we cannot use the doGet() or doPost methods unless we call super.service at the beginning of the service method.

ravikumarzee@gmail.com

 Profile Answers by ravikumarzee@gmail.com Questions by ravikumarzee@gmail.com

• Feb 20th, 2006

U can have all the 3 methods in a servlet, but only the service() method gets called.Servlet Container always calls the Service(ServletRequest, ServletResponse) method whenever a new request has come....

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Bhavani Shekhar

• Mar 25th, 2006

LOG4J is a framework. you need to follow the standard folder structure so that you J2EE Component could write the log messages to the specified locations. To work with log4j you need to following step...

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chandra

• Mar 25th, 2006

If you required creating bitwise exact copy of an object you can use cloning

Ashok babu

• Mar 25th, 2006

 Cloning is only method by which we can create object to an object.

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preeti

• Mar 24th, 2006

U can focus on any textField through javascript.

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Duvvuri

• Mar 23rd, 2006

Cloneable,comparable,Runnable

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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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rams

• Mar 22nd, 2006

Swings r faster than awtAwt uses heavyweight components for user interfaces.Swing uses lightweight componentsimplementations of AWT components uses native code which may vary from one machine to another.Swing components are pure java code

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The Object class is the highest-level class in the Java class hierarchy. The Class class isused to representthe classes and interfaces that are loaded by a Java program.

mprodge

 Profile Answers by mprodge Questions by mprodge

• Mar 22nd, 2006

Objects and classes are mainly used for reducing the repeatitiveness in programming.These are the fundamental units of oop programmings.It reduces the time and complexity of programming..........

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Sander

• Mar 20th, 2006

Using ObjectStream to read object and count size.

nakt

• Nov 18th, 2005

You can check Runtime r = Runtime.getRuntime() ;r.freeMemory() ;before and after the creation of the new Object you can check the memorty and by subtraction u can get the used memory. Not accurate but useful.

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nirmala

• Mar 20th, 2006

 1.java JDBC native Driver2.all java JDBC net Driver3.JDBC-ODBC bridge Driver4.native protocol all java net driver

Guest

• Mar 9th, 2006

There are 4 types of drivers are available1.Jdbc odbc Driver (JDBCODBC Bridge Driver)2.Native API and  partly Java Technology -enabled driver3.Net protocal fully java technology enabled driver &n...

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