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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.
What is the difference between an if statement and a switch statement? The if statement is used to select between two alternatives. It uses a boolean expression to decide whi
Hi anybody there
assignment on jsp
We may use the java.net.URL and java.net.URLConnection classes to start a standard HTTP connection and "tunnel" to a Web server. The server then gives this information to the s
#decoding
Program for Randomly Generated 3- Digit Number Matches This assignment demonstrates your ability to use basic Java syntax including selection and looping statements. You will
Differentiate between a Choice and a List ?
Which models are supported by JMS? Please, explain them. Ans) Publish or subscribe (pub/sub). This model permits a client (publisher) to send messages to a JMS topic. These mess
You want the base class to represent only an interface for its derived classes. That means, you don't want anyone to actually instantiate an object of the parent class. You only
UnsupportedClassVersionError
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