sivanesh.a

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• Dec 24th, 2006

Static variables- shared by objects, nonstatic- not shared

Rajesh Sakhamuri

• Nov 2nd, 2005

By Rajesh:static variables can be created only one copy,that copy can be shared with all the objects.static class can be access with static members only. non-static members can be access any members.it will depend upon the objects.

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sivanesh.a

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• Dec 24th, 2006

No pointers . so java is well n secured

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sivanesh.a

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• Dec 24th, 2006

Yes. but if u r using finally then not necessary.

vazirahamed

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• Apr 8th, 2006

Yes its necessary we need to give atleast one catch block or finally block.TRY-Catch-Finally:try{}catch(IOException e){}catch(FileNotFoundException e){}catch(Exception e){}finally{}Function of th...

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sivanesh.a

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• Dec 24th, 2006

STring - immutablestringbuffer-mutable

Rajesh

• Nov 2nd, 2005

String is the immutable we canot modify the string object, whereas StringBuffer is mutable,we can modify the stringobject.perfomance of string is more than the string buffer at runtime.By Rajesh

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sivanesh.a

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• Dec 24th, 2006

They have implicit return

nandha gopal

• Apr 13th, 2006

The constructor is getting called when ever the object for the class is created.In java or c++  the object is created like as followsclass A{//some code}//class endsin java   A obj = ne...

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sivanesh.a

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• Dec 24th, 2006

Access modifiers: static, final,access specifiers: public, private, protected.

CoolOne

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• Apr 19th, 2006

What is difference in functionality

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sivanesh.a

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• Dec 24th, 2006

Not possible in java

sanemadhu

• Sep 30th, 2006

1)how to find out the size of the class,2) in java we write one  program and executed that program then how to find out the size of that program

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sivanesh.a

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• Dec 24th, 2006

Memory leak: inability to deallocate the memory space allocated by program.

justAnother

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• Nov 16th, 2005

Memory leak is when memory used by an object or variable cannot be freed even after the code that created the object/ variable has finished execution.According to wikipedia:Memory leaks are often thou...

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sivanesh.a

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• Dec 24th, 2006

Final variable are like constants.

Rajesh

• Nov 1st, 2005

Final variable are constants. Once u assigned some value to the final variable,that assigned value througout the ppm is same.u  canot modify it.final class cant be inherited.

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If an expression involving the Boolean & operator is evaluated, both operands areevaluated. Then the & operator is applied to the operand. When an expression involvingthe && operator is evaluated, the first operand is evaluated. If the first operand returns avalue of true then the second operand is evaluated. The && operator is then applied tothe first and second operands. If the first operand evaluates...

sivanesh.a

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• Dec 24th, 2006

& -> for bitwise operation&&-> for logical comparison

Tracy Nelson

• Sep 7th, 2005

There is no such thing as a "Boolean &" operator. The & operator is the bitwise-AND operator, and combines two values. It's often used for masking off part of a variable (e.g., to get the two low-order bytes of a 32-bit value, use the expression "value & 0xFFFF").

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sivanesh.a

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• Dec 24th, 2006

Java Bean: for standalone applications.. EJB: for enterprise applications.

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sivanesh.a

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• Dec 24th, 2006

Use ...System.gc() method

Ravi Nagar

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• Oct 24th, 2005

Even calling the garbage collector method doesn't ensure that garbage collection will take place. Its just a request method.

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sivanesh.a

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• Dec 24th, 2006

Inheritance. polymorphism. Abstraction. Encapsulation.

HabazalCoonya

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• Jul 31st, 2006

oop (Object Orinatated Princables) are having four concepts.1) no "primative" types.Evry thing has to be an objekt. this is y u have java.lang.Integer, and autoboximng was turned on in java5, when bef...

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sivanesh.a

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• Dec 24th, 2006

Not necessary in java as like in C or C++. Compiler varies.

Devidas Sonawane

• Nov 9th, 2005

Semicolon is given at the end of sentence not at the end of class and class start with open brace ({) and end with the close brace (}). but for annonymous inner class we can give semicolon.  

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sivanesh.a

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• Dec 24th, 2006

Implementing all the methods is not necessary if the class is declared as Adapter class.

Manivannan Palanichamy

• Aug 2nd, 2006

In general, an adapter class is a pattern, thats an abstract. It provides empty implmentation for its method, optionally you can implement some of them.

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sivanesh.a

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• Dec 24th, 2006

Java Bean: we have getter and setter methods. but in java class its not available.

Ganesh Krishnan

• Jun 28th, 2006

The most important difference is that a Bean is serializable. Just adding getters & setters to a class wont mark it as a Bean.cheers~gk

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sivanesh.a

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• Dec 24th, 2006

To convert Object into Streams.

balajifortest

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• Oct 26th, 2006

Hai,  Seralization is the process of converting object into file streams this becausein order to transfer it through out the network.if u use SOAPFormatter it seralizes to XML File where as Binar...

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Saradhy

• Dec 21st, 2006

Both Servlets and JSP's are using for the same purpose i.e to generat the dynamic content. We can either use Servlets or JSP's. But According to the MVC Architecture, we should have to use Servlets ...

viswanadh

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• Mar 13th, 2006

A jsp is inturn a servlet. When we use jsp's the amount of code will be decreased when compared to servlets.But jsp's take more amount of processing time.Therefore we use jsp's if a jsp can satisfy the given processing criteria else notwe go for a servlet.

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sivanesh.a

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• Dec 20th, 2006

Yes.

digvijayjpr

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• Oct 16th, 2006

A class variable can not be garbage collected because a class varible will be avaliable as long as the class is available.

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sivanesh.a

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• Dec 20th, 2006

class node { Object data; node next; } // Node

sitaram81581

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• May 22nd, 2006

// Linked List implementation without using Collection frameworkpublic class Node { int data; Node next; public Node(int data, Node next) {  this.data = data;  ...

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