Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Mar 17th, 2012

The correctness and consistency of stored data is known as integrity of data.

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mandyjoshi

 Profile Answers by mandyjoshi Questions by mandyjoshi

• Nov 11th, 2005

Hashset: It belongs to Set group of Collection. It allows null as value. It is not thread-safe.

Mehar

• Nov 3rd, 2005

This class implements the set interface, backed by a hash table (actually a HashMap instance). It makes no guarantees as to the iteration order of the set; in particular, it does not guarant...

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Because java supports multilevel inheritance.

mandyjoshi

 Profile Answers by mandyjoshi Questions by mandyjoshi

• Nov 11th, 2005

The half answer is explain by Krishna Prasad and Other half lies in answer of question why java does not support multiple inheritance. And how it has solved that problem using interfaces. 

krishna prasad

 Profile Answers by krishna prasad Questions by krishna prasad

• Nov 4th, 2005

case 1suppose you have a class Test, which doesn't extend any other class. So by default, Object becomes it's super class.              ...

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jaya

• Nov 18th, 2005

multiple layout

udit

• Nov 18th, 2005

because when u r using a particular layout manager it ues full fram for work you can use gridbag layout for this purpose

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mandyjoshi

 Profile Answers by mandyjoshi Questions by mandyjoshi

• Nov 15th, 2005

Classpath: The CLASSPATH is an environment variable that tells the Java compiler javac.exe where to look for class files to import or java.exe where to find class files to interpret.Path: The PAT...

anasthesia

 Profile Answers by anasthesia Questions by anasthesia

• Nov 14th, 2005

CLASSPATH points to all the class files in your program, whereas path contains the location of all the executibles that your program needs forsuccessful run

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Gaurav Modgil

• Dec 9th, 2005

not necessarily does it wait for the memory to be fully allocated.The garbage collection thread is looking at what percentage of available memory is already allocated..and if the memory allocation goe...

Neverquit

• Nov 17th, 2005

Becuase it depends on the heapsize settings/memory aallocation for the objects to reside once the memory is full the gc is called.

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Vivek

• Feb 10th, 2006

The methods to over ride are equals() and hashCode().

sahu

 Profile Answers by sahu Questions by sahu

• Jan 27th, 2006

Ans:To help find out the unique the key

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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 &...

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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.

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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

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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...

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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...

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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.  

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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 ...

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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

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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.

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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...

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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.

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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...

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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...

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