Java Interview Questions 48

236. What is an applet?- Applet is a dynamic and interactive program that runs
inside a web page displayed by a java capable browser.

237. What is the difference between applications and applets?- a)Application
must be run on local machine whereas applet needs no explicit installation on local
machine. b)Application must be run explicitly within a java-compatible virtual
machine whereas applet loads and runs itself automatically in a java-enabled
browser. d)Application starts execution with its main method whereas applet starts
execution with its init method. e)Application can run with or without graphical
user interface whereas applet must run within a graphical user interface.

238. How does applet recognize the height and width?- Using getParameters()
method.

239. When do you use codebase in applet?- When the applet class file is not in
the same directory, codebase is used.

240. What is the lifecycle of an applet?- init() method - Can be called when an
applet is first loaded start() method - Can be called each time an applet is
started. paint() method - Can be called when the applet is minimized or maximized.
stop() method - Can be used when the browser moves off the applet’s page. destroy()
method - Can be called when the browser is finished with the applet.