Vivek

• Jul 31st, 2006

overloading  :- Same method name,Different signature and return type doesn't matter.Overloading is generally used in same class.methods which perform the same task but in different wasy are given...

fine questions

• Jul 11th, 2006

Overloading is resolved at compile time and overriding is resolved at run time.

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JohnJosephKiernan

 Profile Answers by JohnJosephKiernan Questions by JohnJosephKiernan

• Jul 30th, 2006

Premm, see replies #20 and #21, and the JLS.If Java doesn't have pointers why are they mentioned in the JLS? and why does it have a NullPointerException?It doesn't have pointers with the semantics you describe: that's a different issue.IMHO what it doesn't have is *references* actually.

premmm

 Profile Answers by premmm Questions by premmm

• Jul 29th, 2006

Hi anupamaActually, java does not use pointers.s1 is an object.Let us consider the following situation.If you write username and password in your login page using pointer. go and see the view source o...

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Aruna Subbarao

• Jul 28th, 2006

TreeSet is the collection which maintains order as well as Sorting..

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Joseph Kiernan

• Jul 27th, 2006

The default buffer size is not specified for any buffered class and can vary between implementations. All that the Javadoc says is 'The default is large enough for most purposes.' I could tell you wha...

sahu

 Profile Answers by sahu Questions by sahu

• Jan 27th, 2006

ans:default buffersize 512 bytes

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soumya

• Jul 19th, 2006

I dont think there is provision for finding address space but yes you can find the total memery and free memory by usiing commands freeMemeory() and totalMemory

Paul

• May 21st, 2006

I don't know whether you can get the address of the object or not.. but ...hashCode will not give you the address.

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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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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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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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parimmallarekha

• Jun 24th, 2006

tagged interface is nothing but null interface that means interface without any methods ex programmeinterface black{}interface orange{}class drink1 implements black{}class drink2 implements orang...

srinivas

• Mar 10th, 2006

hi friendss,tagged interface is an interface which is not have any method body so it also called as null interface and marker interface. we need to use that interfaces in java bcoz it provides some in...

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Jitender

• Jun 21st, 2006

An assertion is a statement in the that enables you to test your assumptions about your program. Syntax: assert Expression1 : Expression2 ;

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Jitender

• Jun 21st, 2006

Thread by itself is an object. Your class inherits one more class. Thats it.Thanks,Jitender.

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sbarik

 Profile Answers by sbarik Questions by sbarik

• Jun 20th, 2006

Make a class immutable by following these guidelines : always construct an object completely, instead of using a no-argument constructor combined with subsequent calls to setXXX methods do not provide...

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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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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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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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shirisha49

 Profile Answers by shirisha49 Questions by shirisha49

• May 31st, 2006

Hi there, The code enclosed in finally block is a must-execute code. Whether an exception is raised or not it doesn't matter. If finally code block is embedded after an exception-handling block then the control must pass to finally block either after try-catch or no try-catch.Shirisha K.

shubha

• May 25th, 2006

hi,2.finally block can be used to handle any exception generated within a try block.it may be added immediately after the try block or after the last catch block.when a finally block is defined,this is guranteed to execute,regardless of whether or not an exception is thrown.tq

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gaurav

• May 29th, 2006

dear deepa please read the question carefully.We have two classes and two interfaces.I we had two interfaces then surely we may have implemented it.The solution may be like this(assume class A and B e...

gaurav

• May 29th, 2006

but dear deepa,the question is we have two independent classes and not interfaces.We can't implement the classes.We have to extend the classes and that we can do only one at a time.The sloution can be-(assume class A,B exists)class c extends A{

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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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ganesh

• May 25th, 2006

runtime poly morphism is resolved at runtime i.e the reference variable actually cares which object its presently pointing tocompile time polymorphish is resolved at compile time i.e the reference variable actually cares which type of object its actually rather than which object its pointing

rajev

• May 25th, 2006

Good

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maneesh

• May 24th, 2006

    by using index.

lakshmi

• May 24th, 2006

By using index

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