deny eldo

• Aug 24th, 2006

When a class implements singlethreadmodel this class object can acess the code in a synchronized manner. that is one at a time(single thread)

diala

• Aug 16th, 2006

Can some one explain clearly what is thread safe

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subramanian_ram

 Profile Answers by subramanian_ram Questions by subramanian_ram

• Jan 3rd, 2007

All those answers are lies. JAVA was named as coffee was drunk the most when it was developed. And the bean name is JAVA. thats why u see Coffee Cup as its official symbol.Enjoy.

praveen

• Jul 25th, 2006

Hi friends,   Actually,JAVA came from japan, java is the name of a flaour for tea there in japan.this was to decide the name for a new programming language. wen this java flaour tea was offered at that time and the new language was decided as JAVA.

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suseela

• Aug 9th, 2006

"==" will compare string objects and returns true r false.

ravikgoru

 Profile Answers by ravikgoru Questions by ravikgoru

• Jul 27th, 2006

What is the difference between equals and "=="

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Naik

• Sep 14th, 2006

Transient indicates that when the object is serialised ignore this variable.. and when variable is initialised to its default value when object is deserialised

abhip143

 Profile Answers by abhip143 Questions by abhip143

• Sep 7th, 2006

Up to my understanding transient variables not stored anywhere you can?t store them. I think you meant to say where the memory will be allocated?In that case I think its heap correct me if I am wrong. 

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surya

• Nov 7th, 2006

only one thread is needed i.e main but main thread is not user thread it is deamon thread

anil patil

• Oct 1st, 2006

Jvm run on single thread but it ll create more child thread depending up operating system. if u deeply go into jvm u can find function like classloader, import and packaging. which require threads to create.

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pravallika

• Nov 29th, 2011

There will be times where machine dependencies cannot be avoided, and will be required in the code. These dependencies can be based on the operating system (VMS vs. Unix), or they can be based on the ...

Shilpa

• Oct 24th, 2011

Machine dependency mean we are bound to machines or platform.for example we have some code to execute but we can only execute it on a particular os or required any particular software to run it.

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somewhere I read we should override equals() and hasCode() methods while implementing Comparable interface... I could not understand why should i do so... Kindly help.. thx in advance.

cool2sathish

 Profile Answers by cool2sathish Questions by cool2sathish

• Dec 1st, 2016

Not necessary to override equals() and hashCode() methods, since Comparable interface force you to override compareTo() method.

Murali100

 Profile Answers by Murali100 Questions by Murali100

• Sep 30th, 2012

Equals () : It must define an equality relation.In addition it must be consistent(if the objects are not modified , then it must keep returning the same value) HashCode() : It must also be consistent...

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vinaymudgil007

 Profile Answers by vinaymudgil007 Questions by vinaymudgil007

• Jun 12th, 2008

This is one of the resons we have Collections framework in javaexamplesArrayList , Vector , Set -- directly as objectsHashTable, HashMap -- as objects as ket-value pairsvinny

Amit Rastogi

 Profile Answers by Amit Rastogi Questions by Amit Rastogi

• Oct 5th, 2006

Any collection which is not having singleton or unmodifieable modifier can store any no of objects

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chinnu

• Nov 18th, 2006

Hi ,apart from c++ ,java has dynamic feature . after creating . class file still scope to pass the imformation to that class .like java.lang.ObjectOutputStream using reflecton package.bye

Sunil Pratap Singh

• Nov 8th, 2006

Objects have some attributes ,method and behaviour which determine their state. When the attributes and behaviour of the objects are determined at run time these objects are some times known...

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zuzupetal

 Profile Answers by zuzupetal Questions by zuzupetal

• Jan 30th, 2007

An immutable object is an object whose state cannot be modified after it is created while mutable object can be modified after it is created. An example is String and StringBuffer. My guess is immuta...

zuzupetal

 Profile Answers by zuzupetal Questions by zuzupetal

• Jan 30th, 2007

An immutable object is an object whose state cannot be modified after it is created while mutable object can be modified after it is created. An example is String and StringBuffer. My guess is immuta...

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Y_NOT_

 Profile Answers by Y_NOT_ Questions by Y_NOT_

• Feb 6th, 2007

public class Increment{ public Increment() { int i = 0, j = 0; System.out.println( "1- j = " + j ); j = i++; // prints 0 but infact the value of j is 1. System.out.println( "2- j = " + j )...

agyeya

 Profile Answers by agyeya Questions by agyeya

• Jan 12th, 2007

There is definitely no difference between ++i and i++ if they are used as statements on their own. Only the presence of an additional assignmentforces a difference in the compiled bytecode.In the cont...

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VenkitaKrishnan

 Profile Answers by VenkitaKrishnan Questions by VenkitaKrishnan

• Apr 20th, 2009

Create a batch file and write down all the applications which needs to be called. Simple isn't it?

ramesh.sukka

 Profile Answers by ramesh.sukka Questions by ramesh.sukka

• Apr 16th, 2009

Write Java Threading Application in which you can invoke multiple Java Application at time. so from Command promt if you execute Thead application, internally it will executed multiple application.Regards,Ramesh Sukka.

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rammaheswara

 Profile Answers by rammaheswara Questions by rammaheswara

• Aug 10th, 2009

Yes, we can have morethan one connection object same time. This is how we implement connection pooling. Poole minimum and maximum numebr of connections.

ganeshb

 Profile Answers by ganeshb Questions by ganeshb

• Mar 8th, 2007

No

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Arpit Choudhary

• Feb 10th, 2007

Object is an instance of a class means it has separate copy of all instance variable of class.i.eObject and Instance is same.

Vijay

• Feb 5th, 2007

When we create object of any class...we ll call it "Object" n we allocate memory to the same object using "new" keyword after memory allocation we call it instance........or we can say before memory allocation we call it "object" n after memory allocation we call it "instance"Thanx n Regardsijay

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Sunny Jain

• Feb 28th, 2007

Volatile Variable: Whenever a variable is declared as volatile, the thread accessing the variable have to reconcile its copy of variable with the master copy of that variable....Transient:We can decla...

JavaStudent

 Profile Answers by JavaStudent Questions by JavaStudent

• Feb 12th, 2007

Transient: The transient modifier applies to variables only and it is not stored as part of its object's Persistent state. These variables are not serialized. Transient instance fields are neither sav...

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lhariPrasad

 Profile Answers by lhariPrasad Questions by lhariPrasad

• Mar 18th, 2008

Remember these points while designing the connection pool mechanisim.1. Maintain a hash table of all the created connections2. Assign a flag status for each connection whether it is in use or free3. O...

sampra

 Profile Answers by sampra Questions by sampra

• Mar 11th, 2008

In the connection poolin mechanism instead creating conig connection one by one we can create create lot of connection by the help of container there is two paramentre required 1.initial no of connection 2.max no of connection

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sampra

 Profile Answers by sampra Questions by sampra

• Mar 11th, 2008

Apache server is an application where as apche container is a prog which is used to creeate the object

rajnish_j2ee

• May 10th, 2007

An Apache Server is basically a webServer and it  may comes without the servlet container. So we can say Apache server that is a part of  Apache container .

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Roshan

• Jul 13th, 2007

XML parsing is done to retreive data from xml.(i.e,from root elements, attributes..tags)SAX parser is used to retreive data in a fashion that when it encounters any tag the data encountered is returned back.DOM parser constructs a content tree for the elements.unsequential traverse can be made.

Shailendra Tiwari

• Jul 5th, 2007

Xml parsing use for reading xml files. Sax and Dom parser use for xml parsing.

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sreenivas reddy

• Nov 26th, 2007

We should set the class path otherwise we can't compile the java program.

kohina

 Profile Answers by kohina Questions by kohina

• Nov 18th, 2007

Suppose 'A' directory has 'class x'  and ' B '  directory  has ' class y '  then while compling the x class give the classpath of class y . Even whi...

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sampra

 Profile Answers by sampra Questions by sampra

• Feb 14th, 2008

whitespace is nothing but space b/w two words

psuresh1982

 Profile Answers by psuresh1982 Questions by psuresh1982

• Oct 25th, 2007

Whitespace in Java is used to separate the tokens in a Java source file. Whitespace is required in some places, such as between access modifiers, type names and Identifiers, and is used to improve rea...

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