greeshma

• Mar 9th, 2006

Data type is nothing but the type of value that the variable is going to store.In java there are eight elemental data types--->primitive data types:byte,int,short,long,boolean,char,float,double.user defined data types :arrays,classes.

Prasath S.N

• Feb 13th, 2006

A variable's data type determines the values the variable can contain and the operations that can be performed on it.The Java programming language has two categories of data types ? a)Primitive &...

Answer Question  Select Best Answer

Anand Kumar Kande

• Apr 6th, 2006

It is platform independence. The client can get assurance that his application can work on any OS.It is hardware independence.It is Secured, Robust and portable.The main advantage of java is it is ope...

Supraja

• Feb 17th, 2006

Java is cross platform running just on any combination of hardware and operating system.VB is master of Windows( however VB no longer supports Windows 3.x platform).In relation to security Java has a major advantage of sandlot model where as in VB, activex still problematic.

Answer Question  Select Best Answer

chandra

• Mar 29th, 2006

To handle data in the form of text the abstract classes:Reader and Writer are used. in this Print reader/writer handle printing of characters on the screen or on the printer.  Streams represents ...

sbarik

 Profile Answers by sbarik Questions by sbarik

• Mar 21st, 2006

U can use printer option in java.In java You can Use the printer by using javax.print javax.print.attribute javax.print.attribute.standard the above APIS.Just go through these then u will bw able to acess the printer

Answer Question  Select Best Answer

jeethu

• Apr 4th, 2006

1class a{2   String name;3 public String toString(){4 System.out.println(name);5 }6 }7 class mainone{8 public static void main(String args[])throws Exception{9 a aa=new a();10 System.out.pri...

k.v.n.r.muralil krishna

• Apr 4th, 2006

in object class it contain some methods like hashCode(), toString() methods. this two methods is used to give some information. for example in my project devlepoment i use several classes at some poin...

Answer Question  Select Best Answer

rajsinghgec1

 Profile Answers by rajsinghgec1 Questions by rajsinghgec1

• Jul 13th, 2006

When a reference object encapsulates a reference to some other object, which is called the referent.

Sathya

• Apr 11th, 2006

A reference variable or constant declared as 'final' has a value that is immutable and cannot be modified to refer to any other object than the one it was initialized to refer to. Thus the 'final' spe...

Answer Question  Select Best Answer

When we increase the buffer size in our project using page directive attribute ‘buffer’ what changes we observe?

shyam sundar

• Jun 12th, 2006

the default buffer size is 8k and when we increase the buffer size of the page using the buffer attribute of the page directive then the storage capacity will be increased .if the buffer size is too l...

Nishant

• May 7th, 2006

WellThe effect will be only that the caching of pages in the memory will increase and if it is increase upto much extends, it will consume the more memory of the system. It may increase or decrease the performance of an application.  

Answer Question  Select Best Answer

Thakkar Nirav

 Profile Answers by Thakkar Nirav Questions by Thakkar Nirav

• May 6th, 2006

During execution, compiled code might cache the values of fields for efficiency reasons. Since multiple threads can access the same field, it is vital that caching is not allowed to cause inconsistenc...

Srinivasa Chary

• May 4th, 2006

The volatile keyword is used on variables that may be modified simultaneously by other threads. This warns the compiler to fetch them fresh each time, rather than caching them in registers. This also ...

Answer Question  Select Best Answer

satishm

 Profile Answers by satishm Questions by satishm

• May 26th, 2006

To reduce possibility of memory leaks, following things should be kept in mind. Try to avoid long recursive loops in the code. This leads to an OutOfMemoryError. Avoid collections as static membe...

pratap

• May 25th, 2006

You may use "JProbe Memory debugger" tool to identify memory leaks in your code.Thanks,Pratap

Answer Question  Select Best Answer

Ravindra Gautam

• Jun 5th, 2006

constructor nesting can be achieved only by this(parameter,parameter,...............). it's called with in a constructor,and it must be the first statement within the constructor within which it is ca...

Sujeet Mishra

• May 31st, 2006

Constructor nesting can be achieved by using :this(parameters....)constructors with parameters can use the above to delagate calls to a non argument constructor and vice versa.

Answer Question  Select Best Answer

siva kumar reddy

• Aug 9th, 2006

hi,a class with in the class is called innerclass.it is a safety mechanisam.innerclass variables are accessed througth outerclass variables only.anonymous class is an innerclass whose class name will be hidden .whom will be created only object.cheerssiva

rabbi

 Profile Answers by rabbi Questions by rabbi

• Jun 29th, 2006

 To help you get a handle on inner classes and what they are good for, let's visit the "Stack" class.Here's a "Stack" implementation that defines a helper class, called StackIterator&nb...

Answer Question  Select Best Answer

rabbi

 Profile Answers by rabbi Questions by rabbi

• Jun 29th, 2006

if you change any sub component in a top label container then ,suppose you change some button layout in a frame then that will automatically call by paint to update to validate. that means three metho...

shyju

• Jun 20th, 2006

validate() method is used to cause a container in frames to lay out its subcomponents once again. It should be invoked when this container's subcomponents are modified.

Answer Question  Select Best Answer

Sailaja

• Jun 19th, 2006

A "weak reference" is a holder for a reference to an object, called the referent. With weak references, you can maintain a reference to the referent without preventing it from being garbage collected....

sbarik

 Profile Answers by sbarik Questions by sbarik

• Jun 14th, 2006

Soft Reference :-->An object is softly reachable if it is not strongly reachable and there is a path to it with no weak or phantom references, but one or more soft references. The garbage collector...

Answer Question  Select Best Answer

manyam

• Jun 29th, 2006

Narrowing: done by JVM automatically; won't give any compile time errorWidning: you have to cast explicity, otherwise compiler will throw an error (lpossible loss of precision)--Mani

SURENDER REDDY B

• Jun 28th, 2006

Widning and Narrowing will appear in the Casting operation. Widning is nothing but converting lower datatype to higher datatype when we cast the datatypes.Narrowing is nothing but converting higher da...

Answer Question  Select Best Answer

jay

• Sep 23rd, 2006

Man, StringReader as the name says READS from the stream, StreamWriter - writes to it

rabbi

 Profile Answers by rabbi Questions by rabbi

• Jul 2nd, 2006

Stream Reader A Stream Reader is a bridge from byte streams to character streams: It reads bytes and translates them into characters according to a specified character encoding. The encoding that it u...

Answer Question  Select Best Answer

jay

• Sep 23rd, 2006

You can integrate small modules BY putting them into one package, or if they're in separate packages already - you just simply put them into project's JAR

kalpana

• Jul 24th, 2006

The best option will be make to separate packages ,store each module in each package and then import either in another

Answer Question  Select Best Answer

dile_sahoo

 Profile Answers by dile_sahoo Questions by dile_sahoo

• Mar 21st, 2007

We can use CallableStatement to call a stored procedure from to our java application.InStatement and Prepared Statement object to send an sql statement to Database Server.

Answer Question  Select Best Answer

jay

• Sep 23rd, 2006

serialization is STORING an object somewhere, and ability to RESTORE it later with all it's state information.For example, when you define class as Serializable you mean that it's objects can be : a) ...

HabazalCoonya

 Profile Answers by HabazalCoonya Questions by HabazalCoonya

• Jul 31st, 2006

it is way of moving obj from 1 place to a new place. lke if u hav jvm on desktop nd servr machne with jvm on 2. u can "Serialization" obj so it can be sent frm dsktop to srver.it is vry like xml. but ...

Answer Question  Select Best Answer

deny eldo

• Aug 24th, 2006

Basically it depends upon your convinence but what I have knownwhen we consider version control, where a modification of many component depends upon many classes which are repetadly used in multi...

M.Nagaraja

• Aug 1st, 2006

If we want to implement  all the methods in a child class then w e will go for Interface and if we want to implement a few methods , if we want to use a few methods of its super class we go for Abstract class.

Answer Question  Select Best Answer

What is the main difference between mvc1 and mvc2 and where we can predict the exact difference between them in the use of the project(architecture)

hemavinayak77

 Profile Answers by hemavinayak77 Questions by hemavinayak77

• Jan 2nd, 2008

Hai the flow will be like this in mvc1:1)browser--jsp--bean--db--:--bean--jsp--browsermvc2:browser--servlet--jsp--bean--db--:--bean--jsp--servlet--browser2)mvc1 can't seggregate presentation tier ...

Answer Question  Select Best Answer

bhupathi

 Profile Answers by bhupathi Questions by bhupathi

• Aug 30th, 2006

 Since  Vector and Array List  both are dynamically growable objects  whereas Array is basically having fixed size. thats why we can add  or delete any no of to  Vector or ArrayList.

HabazalCoonya

 Profile Answers by HabazalCoonya Questions by HabazalCoonya

• Aug 21st, 2006

Y? as dat is what API says. Wat API sayz clzz must DO.hwo? by storing size & incramamenng + subtracting it.

Answer Question  Select Best Answer