Differences between Java & JavaScript

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Developing an OS

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Interview Questions for FRESHERS

Tell me about yourself.
Why should I hire you?
What are your strengths and weaknesses?
Why do you want to work at our company?
What is the difference between confidence and over confidence?
What is the difference between hard work and smart work?
How do you feel about working nights and weekends?
Can you work under pressure?
Are you willing to relocate or travel?
What are your goals?
What motivates you to do good job?
What makes you angry?
Give me an example of your creativity.
How long would you expect to work for us if hired?
Are not you overqualified for this position?
Describe your ideal company, location and job.
What are your career options right now?
Explain how would be an asset to this organization?
What are your outside interests?
Would you lie for the company?
Who has inspired you in your life and why?
What was the toughest decision you ever had to make?
Have you considered starting your own business?
How do you define success and how do you measure up to your own definition?
If you won $10 million lottery, would you still work?
Tell me something about our company.
How much salary do you expect?
Where do you see yourself five years from now?
On a scale of one to ten, rate me as an interviewer.
Do you have any questions for me?

Interview Questions for Experienced

Why did you resign from your previous job?

Why have you been out of work so long?

Why have you had so many jobs?

Tell me about a situation when your work was criticized.

Could you have done better in your last job?

Tell me about the most boring job you have ever had.

May I contact your present employer for a reference?

How many hours a week do you normally work?

What was the toughest challenge you have ever faced?

Have you been absent from work more than a few days in any previous position?

What changes would you make if you came on board?

What would you say to your boss if he is crazy about an idea, but you think it stinks?

How could you have improved your career progress?

Tell me honestly about the strong points and weak points of your boss (company, management team, etc.)

Looking back on your last position, have you done your best work?

Why should I hire you from the outside when I could promote someone from within?

How do you feel about reporting to a younger person?

Looking back, what would you do differently in your life?

Why are not you earning more money at this stage of your career?

Important Viva Questions by Principal JAVA

1. What is a class? A class is a blueprint, or prototype, that defines the variables and the methods common to all objects of a certain kind.
2. What is a object? An object is a software bundle of variables and related methods.An instance of a class depicting the state and behavior at that particular time in real world.
3. What is a method? Encapsulation of a functionality which can be called to perform specific tasks.
4. What is encapsulation? Explain with an example. Encapsulation is the term given to the process of hiding the implementation details of the object. Once an object is encapsulated, its implementation details are not immediately accessible any more. Instead they are packaged and are only indirectly accessible via the interface of the object
5. What is inheritance? Explain with an example. Inheritance in object oriented programming means that a class of objects can inherit properties and methods from another class of objects.
6. What is polymorphism? Explain with an example. In object-oriented programming, polymorphism refers to a programming language's ability to process objects differently depending on their data type or class. More specifically, it is the ability to redefine methods for derived classes. For example, given a base class shape, polymorphism enables the programmer to define different area methods for any number of derived classes, such as circles, rectangles and triangles. No matter what shape an object is, applying the area method to it will return the correct results. Polymorphism is considered to be a requirement of any true object-oriented programming language
7. Is multiple inheritance allowed in Java? No, multiple inheritance is not allowed in Java.
8. What is interpreter and compiler? Java interpreter converts the high level language code into a intermediate form in Java called as bytecode, and then executes it, where as a compiler converts the high level language code to machine language making it very hardware specific
9. What is JVM? The Java interpreter along with the runtime environment required to run the Java application in called as Java virtual machine(JVM)
10. What are the different types of modifiers? There are access modifiers and there are other identifiers. Access modifiers are public, protected and private. Other are final and static.
11. What are the access modifiers in Java? There are 3 access modifiers. Public, protected and private, and the default one if no identifier is specified is called friendly, but programmer cannot specify the friendly identifier explicitly.
12. What is a wrapper class? They are classes that wrap a primitive data type so it can be used as a object
13. What is a static variable and static method? What's the difference between two? The modifier static can be used with a variable and method. When declared as static variable, there is only one variable no matter how instances are created, this variable is initialized when the class is loaded. Static method do not need a class to be instantiated to be called, also a non static method cannot be called from static method.
14. What is garbage collection? Garbage Collection is a thread that runs to reclaim the memory by destroying the objects that cannot be referenced anymore.
15. What is abstract class? Abstract class is a class that needs to be extended and its methods implemented, aclass has to be declared abstract if it has one or more abstract methods.
16. What is meant by final class, methods and variables? This modifier can be applied to class method and variable. When declared as final class the class cannot be extended. When declared as final variable, its value cannot be changed if is primitive value, if it is a reference to the object it will always refer to the same object, internal attributes of the object can be changed.
17. What is interface? Interface is a contact that can be implemented by a class, it has method that need implementation.
18. What is method overloading? Overloading is declaring multiple method with the same name, but with different argument list.
19. What is method overriding? Overriding has same method name, identical arguments used in subclass.
20. What is singleton class? Singleton class means that any given time only one instance of the class is present, in one JVM.
21. What is the difference between an array and a vector? Number of elements in an array are fixed at the construction time, whereas the number of elements in vector can grow dynamically.
22. What is a constructor? In Java, the class designer can guarantee initialization of every object by providing a special method called a constructor. If a class has a constructor, Java automatically calls that constructor when an object is created, before users can even get their hands on it. So initialization is guaranteed.
23. What is casting? Conversion of one type of data to another when appropriate. Casting makes explicitly converting of data.
24. What is the difference between final, finally and finalize? The modifier final is used on class variable and methods to specify certain behaviour explained above. And finally is used as one of the loop in the try catch blocks, It is used to hold code that needs to be executed whether or not the exception occurs in the try catch block. Java provides a method called finalize( ) that can be defined in the class. When the garbage collector is ready to release the storage ed for your object, it will first call finalize( ), and only on the next garbage-collection pass will it reclaim the objects memory. So finalize( ), gives you the ability to perform some important cleanup at the time of garbage collection.
25. What is are packages? A package is a collection of related classes and interfaces providing access protection and namespace management.
26. What is a super class and how can you call a super class? When a class is extended that is derived from another class there is a relationship is created, the parent class is referred to as the super class by the derived class that is the child. The derived class can make a call to the super class using the keyword super. If used in the constructor of the derived class it has to be the first statement.
27. What is meant by a Thread? Thread is defined as an instantiated parallel process of a given program.
28. What is multi-threading? Multi-threading as the name suggest is the scenario where more than one threads are running.
29. What are two ways of creating a thread? Which is the best way and why? Two ways of creating threads are, one can extend from the Java.lang.Thread and can implement the rum method or the run method of a different class can be called which implements the interface Runnable, and the then implement the run() method. The latter one is mostly used as first due to Java rule of only one class inheritance, with implementing the Runnable interface that problem is sorted out.
30. What is deadlock? Deadlock is a situation when two threads are waiting on each other to release a resource. Each thread waiting for a resource which is held by the other waiting thread. In Java, this resource is usually the object lock obtained by the synchronized keyword.
31. What are the three types of priority? MAX_PRIORITY which is 10, MIN_PRIORITY which is 1, NORM_PRIORITY which is 5.

What is the use of synchronizations? Every object has a lock, when a synchronized keyword is used on a piece of code the, lock must be obtained by the thread first to execute that code, other threads will not be allowed to execute that piece of code till this lock is released.

1. What are synchronized methods and synchronized statements? Synchronized methods are methods that are used to control access to an object. For example, a thread only executes a synchronized method after it has acquired the lock for the method's object or class. Synchronized statements are similar to synchronized methods. A synchronized statement can only be executed after a thread has acquired the lock for the object or class referenced in the synchronized statement.
2. What are different ways in which a thread can enter the waiting state? A thread can enter the waiting state by invoking its sleep() method, blocking on I/O, unsuccessfully attempting to acquire an object's lock, or invoking an object's wait() method. It can also enter the waiting state by invoking its (deprecated) suspend() method.
3. Can a lock be acquired on a class? Yes, a lock can be acquired on a class. This lock is acquired on the class's Class object.
4. What's new with the stop(), suspend() and resume() methods in new JDK 1.2? The stop(), suspend() and resume() methods have been deprecated in JDK 1.2.
5. What is the preferred size of a component? The preferred size of a component is the minimum component size that will allow the component to display normally.
6. What method is used to specify a container's layout? The setLayout() method is used to specify a container's layout. For example, setLayout(new FlowLayout()); will be set the layout as FlowLayout.
7. Which containers use a FlowLayout as their default layout? The Panel and Applet classes use the FlowLayout as their default layout.
8. What state does a thread enter when it terminates its processing? When a thread terminates its processing, it enters the dead state.
9. What is the Collections API? The Collections API is a set of classes and interfaces that support operations on collections of objects. One example of class in Collections API is Vector and Set and List are examples of interfaces in Collections API.
10. What is the List interface? The List interface provides support for ordered collections of objects. It may or may not allow duplicate elements but the elements must be ordered.
11. How does Java handle integer overflows and underflows? It uses those low order bytes of the result that can fit into the size of the type allowed by the operation.
12. What is the Vector class? The Vector class provides the capability to implement a growable array of objects. The main visible advantage of this class is programmer needn't to worry about the number of elements in the Vector.
13. What modifiers may be used with an inner class that is a member of an outer class? A (non-local) inner class may be declared as public, protected, private, static, final, or abstract.
14. If a method is declared as protected, where may the method be accessed? A protected method may only be accessed by classes or interfaces of the same package or by subclasses of the class in which it is declared.
15. What is an Iterator interface? The Iterator interface is used to step through the elements of a Collection.
16. How many bits are used to represent Unicode, ASCII, UTF-16, and UTF-8 characters? Unicode requires 16 bits, ASCII require 7 bits (although the ASCII character set uses only 7 bits, it is usually represented as 8 bits), UTF-8 represents characters using 8, 16, and 18 bit patterns, UTF-16 uses 16-bit and larger bit patterns
17. What is the difference between yielding and sleeping? Yielding means a thread returning to a ready state either from waiting, running or after creation, where as sleeping refers a thread going to a waiting state from running state. With reference to Java, when a task invokes its yield() method, it returns to the ready state and when a task invokes its sleep() method, it returns to the waiting state
18. What are wrapper classes? Wrapper classes are classes that allow primitive types to be accessed as objects. For example, Integer, Double. These classes contain many methods which can be used to manipulate basic data types
19. Does garbage collection guarantee that a program will not run out of memory? No, it doesn't. It is possible for programs to use up memory resources faster than they are garbage collected. It is also possible for programs to create objects that are not subject to garbage collection. The main purpose of Garbage Collector is recover the memory from the objects which are no longer required when more memory is needed.
20. Name Component subclasses that support painting? The following classes support painting: Canvas, Frame, Panel, and Applet.
21. What is a native method? A native method is a method that is implemented in a language other than Java. For example, one method may be written in C and can be called in Java.
22. How can you write a loop indefinitely?

for(;;) //for loop
while(true); //always true

1. Can an anonymous class be declared as implementing an interface and extending a class? An anonymous class may implement an interface or extend a superclass, but may not be declared to do both.
2. What is the purpose of finalization? The purpose of finalization is to give an unreachable object the opportunity to perform any cleanup processing before the object is garbage collected. For example, closing a opened file, closing a opened database Connection.
3. What invokes a thread's run() method? After a thread is started, via its start() method or that of the Thread class, the JVM invokes the thread's run() method when the thread is initially executed.
4. What is the GregorianCalendar class? The GregorianCalendar provides support for traditional Western calendars.
5. What is the SimpleTimeZone class? The SimpleTimeZone class provides support for a Gregorian calendar.
6. What is the Properties class? The properties class is a subclass of Hashtable that can be read from or written to a stream. It also provides the capability to specify a set of default values to be used.
7. What is the purpose of the Runtime class? The purpose of the Runtime class is to provide access to the Java runtime system.
8. What is the purpose of the System class? The purpose of the System class is to provide access to system resources.
9. What is the purpose of the finally clause of a try-catch-finally statement? The finally clause is used to provide the capability to execute code no matter whether or not an exception is thrown or caught. For example,

try
{
//some statements
}
catch
{
// statements when exception is cought
}
finally
{
//statements executed whether exception occurs or not
}

1. What is the Locale class? The Locale class is used to tailor program output to the conventions of a particular geographic, political, or cultural region.
2. What must a class do to implement an interface? It must provide all of the methods in the interface and identify the interface in its implements clause.

1. What is the difference between an Abstract class and Interface?
2. What is user defined exception?
3. What do you know about the garbage collector?
4. What is the difference between java and c++?
5. In an htm form I have a button which makes us to open another page in 15 seconds. How will you do that?
6. What is the difference between process and threads?
7. What is update method called?
8. Have you ever used HashTable and Directory?
9. What are statements in Java?
10. What is a JAR file?
11. What is JNI?
12. What is the base class for all swing components?
13. What is JFC?
14. What is the difference between AWT and Swing?
15. Considering notepad/IE or any other thing as process, What will happen if you start notepad or IE 3 times ? Where three processes are started or three threads are started?
16. How does thread synchronization occur in a monitor?
17. Is there any tag in htm to upload and download files?
18. Why do you canvas?
19. How can you know about drivers and database information ?
20. What is serialization?
21. Can you load the server object dynamically? If so what are the 3 major steps involved in it?
22. What is the layout for toolbar?
23. What is the difference between Grid and Gridbaglayout?
24. How will you add panel to a frame?
25. Where are the card layouts used?
26. What is the corresponding layout for card in swing?
27. What is light weight component?
28. Can you run the product development on all operating systems?
29. What are the benefits if Swing over AWT?
30. How can two threads be made to communicate with each other?
31. What are the files generated after using IDL to java compiler?
32. What is the protocol used by server and client?
33. What is the functionability stubs and skeletons?
34. What is the mapping mechanism used by java to identify IDL language?
35. What is serializable interface?
36. What is the use of interface?
37. Why is java not fully objective oriented?
38. Why does java not support multiple inheritance?
39. What is the root class for all java classes?
40. What is polymorphism?
41. Suppose if we have a variable 'I' in run method, if I can create one or more thread each thread will occupy a separate copy or same variable will be shared?
42. What are virtual functions?
43. Write down how will you create a Binary tree?
44. What are the traverses in binary tree?
45. Write a program for recursive traverse?
46. What are session variable in servlets?
47. What is client server computing?
48. What is constructor and virtual function? Can we call a virtual function in a constructor?
49. Why do we use oops concepts? What is its advantage?
50. What is middleware? What is the functionality of web server?
51. Why is java not 100% pure oops?
52. When will you use an interface and abstract class?
53. What is the exact difference in between Unicast and Multicast object? Where will it be used?
54. What is the main functionality of the remote reference layer?
55. How do you download stubs from Remote place?
56. I want to store more than 10 objects in a remote server? Which methodology will follow?
57. What is the main functionality of Prepared Statement?
58. What is meant by Static query and Dynamic query?
59. What are Normalization Rules? Define Normalization?
60. What is meant by Servelet? What are the parameters of service method?
61. What is meant by Session? Explain something about HTTP Session Class?
62. In a container there are 5 components. I want to display all the component names, how will you do that?
63. Why there are some null interface in JAVA? What does it mean? Give some null interface in JAVA?
64. Tell some latest versions in JAVA related areas?
65. What is meant by class loader? How many types are there? When will we use them?
66. What is meant by flickering?
67. What is meant by distributed application? Why are we using that in our application?
68. What is the functionality of the stub?
69. Explain about version control?
70. Explain 2-tier and 3-tier architecture?
71. What is the role of Web Server?
72. How can we do validation of the fields in a project?
73. What is meant by cookies? Explain the main features?
74. Why java is considered as platform independent?
75. What are the advantages of java over C++?
76. How java can be connected to a database?
77. What is thread?
78. What is difference between Process and Thread?
79. Does java support multiple inheritance? if not, what is the solution?
80. What are abstract classes?
81. What is an interface?
82. What is the difference abstract class and interface?
83. What are adapter classes?
84. what is meant wrapper classes?
85. What are JVM.JRE, J2EE, JNI?
86. What are swing components?
87. What do you mean by light weight and heavy weight components?
88. What is meant by function overloading and function overriding?
89. Does java support function overloading, pointers, structures, unions or linked lists?
90. What do you mean by multithreading?
91. What are byte codes?
92. What are streams?
93. What is user defined exception?
94. In an htm page form I have one button which makes us to open a new page in 15 seconds. How will you do that? 

For Seminars in any topic Information Technology or any branch mail a request to the following gistservicesz@gmail.com

C Language Keywords

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Standard ANSI C recognizes the following keywords:

Open 

Getting Started with Java on Linux

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Working of Java Servlet


A Java servlet is a Java programming language program that extends the capabilities of a server. Although servlets can respond to any types of requests, they most commonly implement applications hosted on Web servers.^[1] Such Web servlets are the Java counterpart to other dynamic Web content technologies such as PHP and ASP.NET.

The following is a typical user scenario of these methods.

1. Assume that a user requests to visit a URL.
   • The browser then generates an HTTP request for this URL.
   • This request is then sent to the appropriate server.
2. The HTTP request is received by the web server and forwarded to the servlet container.
   • The container maps this request to a particular servlet.
   • The servlet is dynamically retrieved and loaded into the address space of the container.
3. The container invokes the init() method of the servlet.
   • This method is invoked only when the servlet is first loaded into memory.
   • It is possible to pass initialization parameters to the servlet so that it may configure itself.
4. The container invokes the service() method of the servlet.
   • This method is called to process the HTTP request.
   • The servlet may read data that has been provided in the HTTP request.
   • The servlet may also formulate an HTTP response for the client.
5. The servlet remains in the container's address space and is available to process any other HTTP requests received from clients.
   • The service() method is called for each HTTP request.
6. The container may, at some point, decide to unload the servlet from its memory.
   • The algorithms by which this decision is made are specific to each container.
7. The container calls the servlet's destroy() method to relinquish any resources such as file handles that are allocated for the servlet; important data may be saved to a persistent store.
8. The memory allocated for the servlet and its objects can then be garbage collected.

Finding IP address in Yahoo! Mail

1. Log into your Yahoo! mail with your username and password.
2. Click on Inbox or whichever folder you have stored your mail.

3. Open the mail.

4. If you do not see the headers above the mail message, your headers are not displayed. To display the headers,
* Click on Options on the top-right corner
* In the Mail Options page, click on General Preferences
* Scroll down to Messages where you have the Headers option
* Make sure that Show all headers on incoming messages is selected
* Click on the Save button
* Go back to the mails and open that mail

5. You should see similar headers like this:
Yahoo! headers : name
Look for Received: from followed by the IP address between square brackets [ ]. Here, it is 202.65.138.109.
That is be the IP address of the sender

6. Track the IP address of the sender
Imp note….
When you receive an email, you receive more than just the message. The email comes with headers that carry important information that can tell where the email was sent from and possibly who sent it. For that, you would need to find the IP address of the sender. The tutorial below can help you find the IP address of the sender. Note that this will not work if the sender uses anonymous proxy servers.

HOW TO FIND WHO IS INVISIBLE IN YAHOO MESSENGER

The following two tricks lets you see who is invisibe in yahoo messenger.without his or her knowing that you are aware of his or her presence.This is a working trick.
Trick 1
1..Open the conversation window of the person..whom you suspect to be online.
2..Click on IMvironments.find doodle from the imvironments.click on it
3..you will see a screen..”Waiting for your buddy to load doodle”….Wait sometime
4..After sometime if it is able to load….it means your so called buddy is online n he or she doesnot want to talk to you..
5..if it doesnot load….you can be sure that he or she is really offline
also u can find it out by using www.xeeber.com

How to Multiple Log In Google-Talk

1. Right-click on the desktop
2. Select New
3. Select Shortcut
4. Paste this into the text box:
    “c:\program files\google\google talk\googletalk.exe” /nomutex
    (dont miss even a comma)
5. Click Next
6. Name it whatever: Google Talk Multiple, etc.
7. Click OK until you are done.

How to add your own photo in My Computer properties

To do this:
1. Open Notepad.

2. Type the following:[General]Manufacturer=”Abdul Kader”Model=HP d530 
SFF(DC578AV)[Support Information]Line1= Your Ph NoLine2= Your Address…..

3. Save as “oeminfo.ini” in the System32 folder.(Without Quote)

4. Create a bmp file(Your Photo) and save it the System32 folder as “oemlogo.bmp”(Without Quote).

5. Now Check your My Computer Properties

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In Windows XP How to Fix System32 hal.dll Errors

If you run the Windows operating system on your computer, there are a few problems you are simply going to have to deal with from time to time. Sometimes your applications will crash or refuse to open altogether. There may be instances when the system fails, interrupting your activities with a blue screen error or your PC crashing altogether.
When this is the case, you may be greeted with a message that resembles something like:
Windows could not start because the following file is missing or corrupt: system32 hal.dll
This means that either the hal dll file is either not present, damaged or one of your boot.ini files is corrupt. Both typically mean that you have a serious issue on your hands, one that needs to be addressed quickly.

What Causes a System32 hal.dll Error?

Such a dll error usually means that the specified file has been moved or deleted from its original location. Aside from the being a damaged or missing dll or boot.ini file, this problem could also be related to a hard disk drive that suffered physical damage. Fortunately, this error can be fixed and there are a few different angles from which you can approach it.

Recover the Missing or Damaged File

The easiest way to fix this problem is to utilize the installation disc that contains your copy of Windows. There is a good chance that the disc will be able to repair the missing or corrupt files and get rid of the system32 hal.dll error.

• Insert the Windows disc, restart your PC, and press any key to boot from the CD.
• Once the setup files have finished loading, press the "R" key to repair the error using the Recovery Console utility.
• Once inside, type in the following command "expand d:\i386\hal.dl_ c:\windows\system32\hal.dll" and press enter.
• When you are prompted to overwrite the file, press the "Y" key for Yes.
• Exit and then press "Enter" at the command prompt.
• Reboot your computer and see if the error returns. If it does, the issue is probably related to a damaged or corrupted partition.

Use Recovery Software

In the event that you no longer have the original installation disc, don't worry because there are other measures you can take to get rid of the system32 hal dll missing or corrupt error.
Due to the fact that this particular error has been such a menace for so many users, numerous third-party companies have developed software solutions specifically designed to fix the problem. These programs make it easy to repair and install the required files whether they are corrupt or missing all together. This type of software will ultimately help to get your PC running at an optimal level again.
While you can get rid of the error by completely reinstalling Windows, this often proves to be very cumbersome when considering all your data that will need to be backed up.

Conclusion

Dealing with the system32 hal dll missing or corrupt error can be very frustrating to say the least. Unlike many other errors related to Microsoft software, this one can prevent you from running Windows entirely. The good thing is that it can be resolved with relative ease when the right tools are at your disposal. If you can't find your original Windows disc, do a little research and find yourself a good program that will automatically clear up the troublesome system32 hal.dll error.

How to make your pc work faster

Here you can find useful tips you can do to make your pc work faster in a few minutes , just follow these tips and you will definitely have a much faster and more reliable PC!
Quote:
1. Wallpapers: They slow your whole system down, so if you’re willing to compromise, have a basic plain one instead!

2. Minimizing: If you want to use several programs at the same time then minimize those you are not using. This helps reduce the overload on RAM.

3. Boot Faster: The ‘starting Windows 9x , xp’ message on startup can delay your booting for a couple of seconds. To get rid of this message go to c:\ and find the file Msdos.sys. Remove the Read-Only option. Next, open it in Notepad or any other text editor. Finally, go to the text ‘Options’ within the file and make the following changes: Add BootDelay=0. To make your booting even faster, set add Logo=0 to remove the Windows logo at startup.

4. Restart only Windows: When restarting your PC, hold down Shift to only restart Windows rather than the whole system which will only take a fraction of the time.

5. Turn Off Animations: Go to Display Settings from the Control Panel and switch to the Effects Tab. Now turn off Show Windows Content While Dragging and Smooth Edges on Screen Fonts. This tip is also helpful with Windows XP because of the various fade/scroll effects.

6. Resolutions: If you are willing to do anything for faster performance from your PC, then try lowering your display resolution. The lower it is, the faster your PC

7. Start Up Programs: Windows can be slowed down when programs run on start up. To eliminate this, check your Start up folder. You can access it from the start menu: Start, Programs, Start Up. Another way to eliminate programs from loading even before Windows actually starts is by doing the following: Click on Start, then Run. Type msconfig. It will take quite a long time for this program to load, but when you finally see it on your screen, explore the different tabs. They all have to do with how quickly your PC boots, so select what you want, and uncheck what you don’t want!

8. Fonts: When Windows starts, it loads every single font in the Fonts folder. Therefore, the more fonts you have, the slower the booting process. To get rid of unwanted fonts, simply go to the Fonts folder under c:\windows and remove whatever you don’t want. Fonts that have a red letter ‘A’ as their icon are system fonts, so don’t delete them.

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BLOCK WEBSITES WITHOUT ANY SOFTWARE:

Steps1] Browse C:\WINDOWS\system32\drivers\etc2] Find the file named “HOSTS” 3] Open it in notepad
4] Under “127.0.0.1 localhost” Add 127.0.0.2 www.orkut.com , and that site will no longer be accessable.

example :
127.0.0.1 localhost
127.0.0.2 http://www.orkut.com-
www.orkut.com is now unaccessable
For every site after that you want to add, just add “1” to the last number in the internal ip (127.0.0.2) and then the addy like before.
ie:
127.0.0.3 www.yahoo.com
127.0.0.4 www.msn.com
127.0.0.5 www.google.com
This also works with banner sites, just find the host name of the server with the banners and do the same.

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How to create files and folders without any name.

Just follow the following steps:
1.Select any file or folder.
2.Right click on it,press rename or simply press F2.
3.Press and hold the alt key.While holding the Alt key,type numbers 0160 from the numpad.
Note:Type the numbers 0160 from the numpad,that is,the numbers present on the right side of the keyboard.Dont type the numbers which are present on top of the character keys.
4.Press Enter and the nameless file or folder will be created.
Reason:The file or folder that seems nameless is actually named with a single space.
But what if you want to create another nameless file or folder in the same directory ?
For this you will have to rename the file with 2 spaces.Just follow these steps below:
1.Select file,press F2.
2.Hold alt key and type 0160 from the numpad.
3.Release the alt key.Now without doing anything else,again hold alt key and press 0160.
4.Press enter and you will have second nameless file in the same directory.
5.Repeat step 3 to create as many nameless files or folders in the same directory

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Increase your ram speed at no cost

Here I will give you a cool tip to increase your system RAM while working for no cost.
1)Start any application, say window window media player.Start playing any song.

2)Now start the Task Manager Processor tab and sort the list in descending order on Memory Usage.
You will notice that Wmp.exe will be somewhere at the top, using multiple MBs of memory.

3)Now go back to media player and simply minimize it.

4)Now go back to the Task Manager and see where Wmp.exe is listed. Most probably you will not find it at the top. You will typically have to scroll to the bottom of the list to find Word.
Now check out the amount of RAM it is using.The memory utilization has reduced by a huge amount.
So,simple-minimize each application that u are currently not working on by clicking on the Minimize button and you can increase the amount of available RAM by a great margin.
Depending upon the number and type of applications you use together, the difference can be as much as 50 percent of extra RAM and all this is free of cost.  In any multitasking system, minimizing an application means that it won’t be utilized by the user right now.

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Easy way to Change your processor name

SHOW YOUR PC PENTIUM 5 OR ABOVE
GO TO START>RUN>TYPE
REGEDIT>HKEY_LOCAL_MACHINE>HARDWARE>
DISCRIPTION>SYSTEM>CENTRALPROCESSOR>0
ON RIGHT HAND SIDE, RIGHT CLICK ON “PROCESSOR NAME STRING” AND CLICK ON MODIFY
AND WRITE WHAT EVER YOU WANT

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Solution for fixing corrupted windows files in XP

This tutorial has been made so people that are having problems with corrupted files, can learn how to fix them easy.
Requirement:
1. Windows XP CD
Now, follow this steps:
1. Place the xp cd in your cd/dvd drive
2. Go to start
3. run
4. type “sfc /scannow” (without “)
Now sit back and relax, it should all load and fix all your corrupted file on win XP.

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How to Hide the drives(C:D:E:F) in My PC:

To disable the display of local or networked drives when you click My Computer.1. Go to start->run.2. Type regedit. Now go to: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Now in the right pane create a new DWORD item and name it NoDrives(it is case sensitive). Now modify it’s value and set it to 3FFFFFF (Hexadecimal). Now restart your computer. So, now when you click on My Computer, no drives will be shown(all gone…). To enable display of drives in My Computer, simply delete this DWORD item that you created. Again restart your computer. You can now see all the drives again.

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Windows 7 and XP tricksz:

Hidden Programs In Windows Xp
1) Private Character Editor
This program is for designing icons and Characters(Alphapet)
Click :start
Then :run
type :EUDCEDIT
……………………………………………………………………………………………………………………………….
2) iExpress
This Program is for converting your files to EXECUTABLE files
Click : start
Then : run
type : iexpress
……………………………………………………………………………………………………………………………….
3)Disk Cleanup
This program used for cleaning harddisk to offer space
Click : start
Then : run
type : cleanmgr
……………………………………………………………………………………………………………………………….
4)Dr Watson
This program Is for repairing problems in Windows
Click : start
Then : run
type : drwtsn32
……………………………………………………………………………………………………………………………….
5)Windows Media Player 5.1
Opens the old media player
Click : start
Then : run
type : mplay32
……………………………………………………………………………………………………………………………….
Program …………. CODE
__________ __________
Character Map = charmap
————————————
DirectX diagnosis = dxdiag
————————————
Object Packager = packager
————————————
System Monitor = perfmon
————————————
Program Manager = progman
————————————
Remote Access phone book = rasphone
————————————
Registry Editor = regedt32
————————————
File signature verification tool = sigverif
————————————
Volume Control = sndvol32
————————————
System Configuration Editor = sysedit