What is an exceptions, JAVA Programming

Assignment Help:

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 HelloThere
Remember that's there's no args[0]. Here's what you get:
$ java HelloThere
java.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. 


Related Discussions:- What is an exceptions

Java program that reads in a file of products, Write a Java program called ...

Write a Java program called SalesInfoMiner that reads in a file of products, stored in text format (2 lines per entry). The program must then read in information about past sales t

What is the use of lookupdispatchaction, LookupDispatchAction is useful if ...

LookupDispatchAction is useful if the method name in the Action is not driven by its name in the front end, but by the Locale independent key into the resource bundle. As the key i

Define in detail the building of webpage, Question 1 Describe the browser ...

Question 1 Describe the browser components and its features Question 2 Define in detail the building of webpage Question 3 How to use forms? Describe with an example

Explain drawing rectangles in java, Explain Drawing Rectangles in java ? ...

Explain Drawing Rectangles in java ? Drawing rectangles is easy. Begin with a Graphics object g and call its drawRect() method: public void drawRect(int x, int y, int width, i

Polymorphism carbonfootprint interface program, (CarbonFootprint Interface:...

(CarbonFootprint Interface: Polymorphism) Using interfaces, as you learned in this chapter, you can specify similar behaviors for possibly disparate classes. Governments and compan

I need crime management, I need Crime Management Project Description: ...

I need Crime Management Project Description: It is a web based project build in Oracle(back end) and J2EE(front end)  for peoples so they will register complaints online.

How does JVM do dynamic checking, How does JVm do dynamic checking The ...

How does JVm do dynamic checking The JVM also does "dynamic" checking at runtime for certain operations, like pointer and array access, to make sure they are touching only memo

1. Create a text file (you can name it sales.txt) that conta, 1. Create a t...

1. Create a text file (you can name it sales.txt) that contains in each line the daily sales of a company for a whole month. Then write a Java application that: a. asks the user fo

List down the names of two array techniques available java, List down the n...

List down the names of two array techniques available in JavaScript. The two techniques thata rae available in java script is: 1. sort( ) [sorts elements within alphabetical

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd