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What is an Exceptions ?
• What is an exception? • try-catch • finally • The different kinds of exceptions • Multiple catch clauses • The throws clause • Throwing exceptions • Writing your own exception classes
What is an Exception?Consider this program: public class HelloThere {
public static void main(String[] args) { System.out.println("Hello " + args[0]); }
}Suppose it's run like this: $ java HelloThereRemember that's there's no args[0]. Here's what you get:$ java HelloTherejava.lang.ArrayIndexOutOfBoundsException: 0 at HelloThere.main(HelloThere.java:5)This is not a crash. The virtual machine exits generally. All memory is cleaned up. All resources are released.
Struts is a set of cooperating classes, servlets, and JSP tags that make up a reusable MVC 2 design. ? JavaBeans components for managing application state and behavior. ? Eve
Distributed / Network Oriented Java is network friendly -- both in its portable, threaded nature, and since common networking operations are built-in to the Java libraries.
A question rising in the mind of XML/DTD designers is whether to model and encode retain information using an attribute, or alternatively, using an element. 1. Using an elemen
Socket and ServerSocket. ServerSocket is used for normal two-way socket communication. Socket class permits us to read and write by the sockets. getInputStream() and getOutputStrea
State about the performance of java First versions of java were pretty slow. Java performance has gotten a lot better with aggressive just-in-time-compiler (JIT) techniques
The File class encapsulates the files and directories of the local file system. The RandomAccessFile class gives the methods required to directly access data contained in any part
I want to copy an iphone app with some changes Project Description: I want to copy an iphone app with some changes i need the best programmer to do this for me Skills r
write an application that stores at least five different department and supervisor names in a two dimensional array
have some assignments and i want help with them. thanks
Application Rewrite Project Description: There is an app that I want to be rewritten in order to support multiple profiles. The App is an OTP generator. It is required to
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