What are checked and unchecked exception, JAVA Programming

Assignment Help:

What are Checked and UnChecked Exception?

A checked exception is some subclass of Exception (or Exception itself), excluding class RuntimeException and its subclasses. Making an exception checked forces client programmers to deal with the possibility that the exception will be thrown.

Example: IOException thrown by java.io.FileInputStream's read() method·

Unchecked exceptions are RuntimeException and any of its subclasses. Class Error and its subclasses also are unchecked. With an unchecked exception, though, the compiler doesn't force client programmers either to catch the exception or declare it in a throws clause. In fact, client programmers might not even know that the exception could be thrown.

Example: StringIndexOutOfBoundsException thrown by String's charAt() method· Checked exceptions must be caught at compile time. Runtime exceptions do not require to be. Errors often cannot be.

 


Related Discussions:- What are checked and unchecked exception

Corporate web support, Corporate Web Support: Worked for CGI as Sof...

Corporate Web Support: Worked for CGI as Software Engineer in a team called CWS (Corporate Web Support). We support more than 400 applications for BELL Corporate. Here tas

Neatbeens and glass fish, Assignment 3 Project Proposal Documentation Descr...

Assignment 3 Project Proposal Documentation Description Marks out of Wtg(%) Due date Assignment 3 100 35% 15/09/14 In the assignment we will start analysing and designing the

Develop student portal, Develop Student Portal Project Description: T...

Develop Student Portal Project Description: Technology to be used: Java, Portlets, Liferay, functions in Oracle DB, Boostrap. We need develop two pages, a header and foote

Java applet programming examples, Question: (a) The following is a simp...

Question: (a) The following is a simple example of a Java Class: // File: Welcome.java public class Welcome { public static void main(String args[]) { System.out.printl

Method over ridding method in java, Q. Write short on the method over riddi...

Q. Write short on the method over ridding method in java? Ans. Method over ridding and dynamic binding: We have seen that a method in a super class is inherited by its subclass

Write an application for a video store , a. Write an application for a vide...

a. Write an application for a video store. Place the names of 10 of your favorite movies in a combo box. Let the user select a movie to rent. Let the user select a movie to rent. D

I need the app to be developed for android, I have a very simple app that I...

I have a very simple app that I have developed and is in the AppStore. I need the app to be developed for Android as it is presently in Objective C only. All plist html/ lists s

Query example in sparql - java and jena api, Exercise 1) Lets start by quer...

Exercise 1) Lets start by query example in SPARQL: QUERY: What are the school's names that belong to the "local authority district" 00AA? NOTE 1: "Authority districts" divide UK i

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