Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 9.1, Problem 14STQ
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.
NoSuchMethodException: This exception occurs when a method is called inside a “try” and that method does not exists.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How can the standard error message be shown when an exception is thrown?
Assume a catch handler matches the exception object type. What situations allow exception objects of that type to be handled differently?
Suppose the exception class TestException is defined as follows:public class TestException extends Exception{public TestException(){super("Test Exception thrown!");System.out.println("Test exception thrown!!");}public TestException(String message){super(message);System.out.println("Test exception thrown with an argument!");}public void testMethod(){System.out.println("Message is " + getMessage());}}What output would be produced by the following code (which is just anexercise and not likely to occur in a program)?TestException exceptionObject = new TestException();System.out.println(exceptionObject.getMessage());exceptionObject.testMethod();The class TestException is on the website that comes with this text.
Chapter 9 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 9.1 - Prob. 1STQCh. 9.1 - What output would the code in the previous...Ch. 9.1 - Prob. 3STQCh. 9.1 - Prob. 4STQCh. 9.1 - Prob. 5STQCh. 9.1 - Prob. 6STQCh. 9.1 - Prob. 7STQCh. 9.1 - Prob. 8STQCh. 9.1 - In the code given in Self-Test Question 1,...Ch. 9.1 - In the code given in Self-Test Question 1,...
Ch. 9.1 - Prob. 11STQCh. 9.1 - Prob. 12STQCh. 9.1 - Prob. 13STQCh. 9.1 - Prob. 14STQCh. 9.2 - Prob. 15STQCh. 9.2 - Prob. 16STQCh. 9.2 - Prob. 17STQCh. 9.2 - Prob. 18STQCh. 9.2 - Prob. 19STQCh. 9.2 - Prob. 20STQCh. 9.2 - Suppose that, in Self-Test Question 19, we change...Ch. 9.2 - Prob. 22STQCh. 9.2 - Prob. 23STQCh. 9.3 - Prob. 24STQCh. 9.3 - Prob. 25STQCh. 9.3 - Prob. 26STQCh. 9.3 - Prob. 27STQCh. 9.3 - Prob. 28STQCh. 9.3 - Repeat Self-Test Question 27, but change the value...Ch. 9.3 - Prob. 30STQCh. 9.3 - Prob. 31STQCh. 9.3 - Prob. 32STQCh. 9.3 - Consider the following program: a. What output...Ch. 9.3 - Write an accessor method called getPrecision that...Ch. 9.3 - Prob. 35STQCh. 9.4 - Prob. 36STQCh. 9.4 - Prob. 37STQCh. 9.4 - Prob. 38STQCh. 9 - Write a program that allows students to schedule...Ch. 9 - Prob. 2ECh. 9 - Prob. 3ECh. 9 - Prob. 4ECh. 9 - Prob. 5ECh. 9 - Write code that reads a string from the keyboard...Ch. 9 - Create a class Rational that represents a rational...Ch. 9 - Prob. 9ECh. 9 - Suppose that you are going to create an object...Ch. 9 - Revise the class RoomCounter described in the...Ch. 9 - Prob. 12ECh. 9 - Write a class LapTimer that can be used to time...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Write a program that uses the class calculator in...Ch. 9 - Prob. 3PPCh. 9 - Prob. 7PPCh. 9 - Suppose that you are in change of customer service...Ch. 9 - Write an application that implements a trip-time...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- A custom exception type is usually defined by: inheriting from the exception class. O inheriting from the try block. a function definition within the except block. a class definition within the finally block.arrow_forwardSuppose the exception class CrazyException is defined as follows: public class CrazyException extends Exception { public CrazyException() { super("Crazy exception thrown!"); System.out.println("Wow, Crazy exception thrown!"); } public CrazyException(String message) { super(message); System.out.println("Wow, crazy exception thrown with "+ "an argument!"); } public void crazyMethod() { System.out.println("Message is " + getMessage()); } } What output would be produced by the following unlikely code? CrazyException exceptionObject = new CrazyException(); System.out.println(exceptionObject.getMessage()); exceptionObject.crazyMethod();arrow_forwardvoid foo () { try { throw new Exception1 (); print (" A "); throw new Exception2 (); print (" B "); } catch ( Exception1 e1 ) { print " handler1 "; } print (" C "); throw new Exception2 (); } void main () { try { try { foo (); print (" D "); } catch ( Exception1 e1 ) { print " handler2 "; } print (" E "); } catch ( Exception2 e2 ) { print " handler3 "; } } Write down the output of the program and justify why it is the output. Instead of the “replacement” semantics of exception handling used in modern languages, a very early design of exception handling introduced in the PL/I language uses a “binding” semantics. In particular, the design dynamically tracks a sequence of “catch” blocks that are currently active; a catch block is active whenever the corresponding try block is active. What will be the output of the following program if the language uses the “binding” semantics? Give the reasoning for your answer.arrow_forward
- Define an exception class called CoreBreachException. The class should have a default constructor. If an exception is thrown using zero-argument constructor, getMessage should return "Cor Breach Evacuation Ship!" The class should also define a constructor having a single parameter of type String. If an exception is thrown using constructor, getMessage should return the value that was used as an argument to constructor.arrow_forwardIn Python Please Create a custom exception class that inherits from Exception. You do not need to implement any code within this class. A pass statement is required if no code is implemented. Write a try/except statement. Raise an exception of the custom exception class you wrote. Handle the exception – i.e. Include an except suite that "catches" an exception of that type.arrow_forwardTime Converter 1. Write a program that converts dates from a numerical month-day format to alphabetic month-day format. IE 1/31 or 01/31 would have an output of January 31. 1. User enters the month and day as a single string. It is then converted. (10%) 2. Create 2 exception classes (20%) 1. MonthException thrown for invalid months 2. DayException-thrown for invalid days for the given month 3. You can assume Feb is always 28 days 2. This should run in a for loop and end when a user is done entering dates (70%)arrow_forward
- What happens if an exception is raised but not handled?arrow_forwardJava Foundations: Please provide a basic exception code. Do not use input, output. Please provide code and explain. Thank you. Write the Java code for the following: Write the InvalidGradeException class that will be used below. Write the Java program that reads an integer grade from a user and checks that it is valid (between 0 and 100). If it is invalid an InvalidGradeException will be thrown, stating what the invalid grade is. This will be caught in the main( ) method which will write a message about the invalid grade. If the grade is valid, it is written to the monitor.arrow_forwardDefine an exception class called CoreBreachException. The class should have a default constructor. If an exception is thrown using this zero- argument constructor, getMessage should return "Core Breach! Evacuate Ship!" The class should also define a constructor having a single parameter of type String. If an exception is thrown using this constructor, getMessage should return the value that was used as an argument to the constructor.arrow_forward
- JAVA EXCEPTION HANDLING:Define a new exception, called ExceptionLineTooLong, that prints out the error message "The strings is too long". Write a program that reads phrase and throws an exception of type ExceptionLineTooLong in the case where a string is longer than 80 characters. For example: Input Result The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs.The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs.The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs.The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs.The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs.The quick brown fox jumped over the lazy dogs. The quick brown fox jumped over the lazy dogs.The quick brown fox jumped…arrow_forwardPlease do this in Java! 3. RetailItem Exceptions Programming Challenge 4 of Chapter 6 required you to write a RetailItem class that holds data pertaining to a retail item. Write an exception class that can be instantiated and thrown when a negative number is given for the price. Write another exception class that can be instantiated and thrown when a negative number is given for the units on hand. Demonstrate the exception classes in a program. /** *Description: This program will displays a string without any user interaction *Class: Fall - COSC 1437.81002 *Assignment1: Hello World *Date: 08/15/2011 *@author Zoltan Szabo *@version 0.0.0 */ For each method, you will also be required to create docstring as follows: /** * @param String as args * @return Termination code as int, 0 for normal, anything else is error condition * @throws Nothing is implemented */ Flowcharts/UML and Pseudo code All assignment questions must show design flowchart/UML and/or pseudo code unless otherwise…arrow_forwardSuppose that statement2 causes an exception in the following statement: try{statement1;statement2;statement3; }catch (Exception1& ex1) {}catch (Exception2& ex2) {}catch (Exception3& ex3) {statement4; throw; } statement5; Answer the following questions:Will statement5 be executed if the exception is not caught? If the exception is of type Exception3, will statement4 be executed, and will statement5 be executed?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning