Exception: It is nothing but an undesirable or unexpected event that occurs at run time which interrupts the normal flow of the program ’s commands. Exception handling is a mechanism that handle runtime errors like “ClassNotFoundException”, “SQLException”, and so on. An advantage of exception handling is to maintain a flow of the program. An exception can be handled using “try” and “catch” block. Types of exceptions: There are two types of exceptions. They are: Checked Exception: A class that inherits a “Throwable” class except “RunTimeException” and “Error” are called as checked exceptions. Example: “IOException” Unchecked Exception: A class that inherits a “RunTimeException” class is called as unchecked exceptions. Example: “ArrayIndexOutOfBoundException” “throws” clause: This clause is used to declare the exception. This provides information to the programmer that the program might produce an exception so it is better to give the exception handling code which maintains the normal flow of the program. It is usually given in the method header. Syntax: Method_Name throws ExceptionName { //statements }

Question

Want to see the full answer?

Answer 1

Question

Chapter 9.3, Problem 26STQ

Program Plan Intro

Exception:

It is nothing but an undesirable or unexpected event that occurs at run time which interrupts the normal flow of the program’s commands.

Exception handling is a mechanism that handle runtime errors like “ClassNotFoundException”, “SQLException”, and so on.

An advantage of exception handling is to maintain a flow of the program.

An exception can be handled using “try” and “catch” block.

Types of exceptions:

There are two types of exceptions. They are:

Checked Exception:

A class that inherits a “Throwable” class except “RunTimeException” and “Error” are called as checked exceptions.

Example: “IOException”

Unchecked Exception:

A class that inherits a “RunTimeException” class is called as unchecked exceptions.

Example: “ArrayIndexOutOfBoundException”

“throws” clause:

This clause is used to declare the exception. This provides information to the programmer that the program might produce an exception so it is better to give the exception handling code which maintains the normal flow of the program.

It is usually given in the method header.

Syntax:

Method_Name throws ExceptionName

{

//statements

}

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

[5 marks] Give a recursive definition for the language anb2n where n = 1, 2, 3, ... over the alphabet Ó={a, b}. 2) [12 marks] Consider the following languages over the alphabet ={a ,b}, (i) The language of all words that begin and end an a (ii) The language where every a in a word is immediately followed by at least one b. (a) Express each as a Regular Expression (b) Draw an FA for each language (c) For Language (i), draw a TG using at most 3 states (d) For Language (ii), construct a CFG.

Question 1 Generate a random sample of standard lognormal data (rlnorm()) for sample size n = 100. Construct histogram estimates of density for this sample using Sturges’ Rule, Scott’s Normal Reference Rule, and the FD Rule. Question 2 Construct a frequency polygon density estimate for the sample in Question 1, using bin width determined by Sturges’ Rule.

Generate a random sample of standard lognormal data (rlnorm()) for sample size n = 100. Construct histogram estimates of density for this sample using Sturges’ Rule, Scott’s Normal Reference Rule, and the FD Rule.