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

Why is uml important? , The more complicated the underlying system, the mor...

The more complicated the underlying system, the more critical the inter communication among everyone involved in deploying and developing the software. UML is a software language f

Create a generic class with a type parameter, 1. The purpose of this proble...

1. The purpose of this problem is to practice using generics.  Create a generic class with a type parameter that simulates drawing an item at random out of a box. For exampl

Explain rmi architecture, RMI uses a layered architecture; every of the lay...

RMI uses a layered architecture; every of the layers could be increased or replaced without affecting the rest of the system. The details of layers can be summarised as follows:

File and random access file classes, Difference between the File and Random...

Difference between the File and Random Access File classes? Ans) The File class encapsulates the files and directories of the local file system. The Random Access File class giv

Solving problems about traffic jam, Computer programming Project Descrip...

Computer programming Project Description: Solving various problems about traffic jam Skills required: C# Programming, Java, C++ Programming, PHP, Software Architecture

What is includeaction, The IncludeAction class is useful when you require t...

The IncludeAction class is useful when you require to integrate Struts into an application that uses Servlets. Use the IncludeAction class to contain another resource in the respon

Implement a driver program to test out all constructors, Implement a class ...

Implement a class  Book  (Book.java). A book will have three instance variables: a  title  (a String, for example: "Big Java" or "The Hitchhiker's Guide to the Galaxy"), an  author

What is preferred organizational structure for organization, What is the pr...

What is the preferred organizational structure for the organization? The Network Organization is becoming the preferred organizational structure.

Help, I can''t figure out how to do this question: "Given two linear equati...

I can''t figure out how to do this question: "Given two linear equations: ax + by + c = 0 and dx + ey + f = 0" solve for x and y. A, b, c, d, e, and f being inputted from the user.

RatinalAssignment, 1. Make a class Rational to provide at least following m...

1. Make a class Rational to provide at least following methos and constructors: Rational r1= new Rational (3,5); Rational r2= new Rational (4,7); Rational r3=r1.add(r2);

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