What is this?

That is the bassically a java keyword which is used for the represent an instance of the class in which it appears.

More interview questions and answers
How do I convert a numeric IP address like 192.19.98.38 into a hostname like java.sun.com?
How can I find out the current IP address for my machine?
How do I perform a hostname lookup for an IP address?
How can I find out who is accessing my server?
What are socket options, and why should I use them?
When my client connects to my server, why does no data come out?
What is the cause of a NoRouteToHostException?
How can I fetch files using HTTP?
How do I use a proxy server for HTTP requests?
What is a malformed url, and why is it exceptional?
How do I prevent caching of HTTP requests?
How do I handle timeouts in my networking applications?
How do I control the amount of time a socket will linger before resetting?
What does the java.net.Socket.setTcpNoDelay method do, and what is Nagle\'s algorithm?
How do I implement a (FTP/HTTP/Telnet/Finger/SMTP/POP/IMAP/..../) client/server?
How do I implement PING in Java?
How can I send/receive email from Java?
How you define elements in HTML?
What is TCP/IP ?
What is Technology Compatibility Kit (TCK) ?
What is thin client ?
What is \'this\' ?
What is thread ?
What is throw ?
What is throws ?
What is transaction ?
What is transaction isolation level ?
What is transaction manager ?
What is transient ?
What is try ?
What is type ?
What is Unicode ?
What is URI ?
What is URL ?
What is URN ?
What is variable ?
What is virtual machine ?
What is void ?
What is volatile ?
What is Web server ?
What is while ?
What is world readable files ?
What is wrapper ?
What is ACID ?
What is Embedded Java Technology ?
What is class method ?
What is class variable ?
What is constructor ?
What is this?
What is the nested element in HTML?
What is Empty HTML element?
HTML is case sensitive or not?
What is URL path ?
What is user data constraint ?
What is user (security) ?
What is validating parser ?
What is value-binding expression ?
What is virtual host ?
What is W3C ?
What is WAR file ?
How you define Attributes in HTML?
What is Web application ?
What is Web component ?
What is Web module ?
What is Web resource ?
Attibutes names and their values are case-sensitive or not?
How you define HTML Attribute Reference?
How you define HTML Style Attribute in HTML?
What are the Deprecated Tags and Attributes?
How you define HTML link?
What are the Hyperlink,Anchors and Link in the HTML?
How you define href,target and name Attributes?
How to link the Images with in HTML?
How we define Src Attribute and Alt Attribute in HTML?
How to create tables in HTML?
How to create headings and empty cells in table?
Write some useful table tags that we use in HTML?
How you define list in HTML?
What\'s Java Swing?
What is JFC?
What is AWT?
What are the differences between Swing and AWT?
What are heavy weight components ?
How you understand about Forms output?
What is lightweight component?
What is double buffering ?
What is an event in Swing?
What is an event handler in swing?
What is a layout manager?
How you use Text Field,Radio Button and Checkbox in Form?
What is clipping?
Which containers use a border Layout as their default layout in swing?
What is the preferred size of a component?
What method is used to specify a container\'s layout?
Which containers use a FlowLayout as their default layout?
How you use Form\'s Action Attribute and Submit Button in HTML?
How you define HTML Frames?
Which method of the Component class is used to set the position and size of a component?
How you use scipts on HTML?
What is the What is the difference between invokeAndWait() and invokeLater()? ?