How we implement pagination in j2ee

naveen potla

• Aug 27th, 2011

One way is fetching records from DB is using limit. For example if we have 1000 records to get in our result, you can fetch 100 records each time.

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The values true and false are not keywords.

BASWARAJ

• Aug 27th, 2011

No, True and False are not keywords

Srinivas

• Aug 26th, 2011

No, true and false are not keywords in Java. They are literals.

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shraisy

 Profile Answers by shraisy Questions by shraisy

• Aug 27th, 2011

1. A process is a job/task which runs at the background whereas a thread is a single line of execution in a program. 2. While creating a new process, each time new address space is allocated whereas ...

Jitendra Nayak

• Aug 17th, 2011

Every execution of a program is called process and every process is known as thread.

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The only statements for which it makes sense to use a label are those statements that canenclose a break or continue statement.

sharmawithu

 Profile Answers by sharmawithu Questions by sharmawithu

• Aug 27th, 2011

A label is used to recognize particular area where we need to keep the break. Example: Suppose in one area you are expecting an exception then you'll keep the break then after that particular functi...

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The String literal "abc" is not a primitive value. It is a String object.

nik7i

 Profile Answers by nik7i Questions by nik7i

• Aug 28th, 2011

Yes it is an object, by default string literals has treated as string object...
to prove it:

string s = "hello";
S.o.p(s.length);

string s= new string("hello");
S.o.p(s.length);

both have similar output that shows both are objects..

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DEBASIS kARMAKAR

• Aug 31st, 2011

Dynamic Host Cofiguration Protocol.

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What is the use of static in (public static void main string args[])

amrutabhavana

 Profile Answers by amrutabhavana Questions by amrutabhavana

• Sep 4th, 2011

We can use static key word for any method which does not require an object to call, so main method is automatically called by the JVM so it does not require any object it is mentioned as static. We ca...

Suresh

• Aug 6th, 2011

Without creating instance of that class to invoke the main method static keyword is used, by giving the name of the class main method gets invoked.

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class Test
{
public static void main(String... a)
{
System.out.println("hello world");
}
}

In the above code if we write "s" of String class in lowercase, it gives an error of class not found, but if we write "S" of "System" class in lower case it gives an error package not found.

why?

amrutabhavana

 Profile Answers by amrutabhavana Questions by amrutabhavana

• Sep 4th, 2011

System is class.it belongs to the lang package."System.out.println" means println is a method which is called by out object of system class.

Prabha

• Aug 10th, 2011

System is a class which is available in lang package and we need not to create object. When we give System as system compiler searches in the package and gives an error.

String is also a class and we can create objects to handle character strings and it is a reference datatype

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rajesh kumar

• Sep 9th, 2011

write a custom handler for such a request. the handler will examine the querystring value and write appropriate message using response.write. register ur handler in config, and you are through. pleas...

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Why compiler does not provide default constructor if there is any parametrized constructor is provided by programmer.?

sam505

• Sep 14th, 2011

1)Compiler does not provide default constructor in case when we call parametrized constructor,because default constructor does not contain any parameter,it is parameter less constructor. 2)Normally d...

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What is MVC and what are its advantages?

Varun Sharma

• Sep 17th, 2011

MVC stands for M- MODEL V- VIEW C- CONTROL.

Its basic advantage is that it's help a programmer to write business logic and designing view coding separately.

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Naga

• Sep 21st, 2011

A thread can start other thread but it cant be the member of other thread

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A) oneB) twoC) noneD) three

sandeep sharma

• Sep 25th, 2011

One

nagarajan

• Apr 17th, 2006

only one

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pradeep choubey

• Oct 3rd, 2011

Because in c language we use primitive data type such as int , char , boolean but c is not object oriented language. but java use all primitive type object so we can say that java is not 100 % oop lang..

abhi_csedas

 Profile Answers by abhi_csedas Questions by abhi_csedas

• Aug 5th, 2009

Java is an OOP language but not a pure Object Oriented Programming Language.There are six qualities to make a programming language to be pure Object Oriented. They are: i) Encapsulation/Data Hiding ii...

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How to know that a string require how much bytes in memory......

Ex. String s="abc";
String s=new String("abc");

How much memory is used for s and s2

sumathi

• Oct 6th, 2011

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

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A Scrollbar is a Component, but not a Container. A ScrollPane is a Container. AScrollPane handles its own events and performs its own scrolling.

sumathi

• Oct 6th, 2011

Scrollbar is a component
Scrollpane is a container

A ScrollPane handles its own events and performs its own scrolling.

A scrollpane captions can not be displayed

ScrollPane can have a scrollbar but scrollbar cannot have a scrollpane.

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What is the difference between object variable and class variable..?

SUMATHI

• Oct 6th, 2011

A Class is a template. An object is an instance of class. Every data member of an object contains its own value, where as Class only declares the data members. class contains one or more related obj...

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Integer / and % can result in the throwing of an ArithmeticException.

Neha

• Oct 8th, 2011

I think '/'

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What is the main advantage of java when compared to other programing languages...?

Shekhar Saxena

• Oct 10th, 2011

Java's main feature is platform independent and it can run anywhere on any platform so this makes Java good and comfortable.

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What is the use of valueOf( ) method?

Shekhar Saxena

• Oct 10th, 2011

ValueOf method converts primitives into string

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