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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.
#questionSmugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they
Model-View-Controller (MVC) is a design pattern put together to help control change. MVC decouples interface from business logic and data. ? Model: The model having the core of
Using Fork() and Exec() or Clone(), create four child processes. Load the same "Hello" program in each process after creation. This program should behave differently in each pro
Explain the for loop in java? // This is the Hello program in Java class Hello { public static void main (String args[]) { System.out.print("Hello "); // Say Hello
Specifications 1. readNumberOfEntries → This function will ask the user for a value greater than or equal to two. The function will keep asking values as long as the user prov
Why You don't need to import java.lang.* There is one exception to the import rule. All classes in the java.lang package are imported by default. Therefore you do not required
tag shows all the errors. iterates over ActionErrors request attribute.
Synchronous messaging involves a client that waits for the server to respond to a message. So if one end is down the whole communication will fail.
what is methods override?
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