PPT-Java Exceptions

a quick review What happened before exceptions must remember to check return value OR must pass labelexception handler to every function Caller Function return status Caller Function label to subprogram. . Shayan. . Javed. Lecture 11. Programming Fundamentals using Java. 1. Exception Handling. Errors. Syntax Errors. Logic Errors. Runtime Errors. Syntax Errors. Arise because . language rules . weren’t followed.. Summer . 2010. . Ganesh. . Viswanathan. Exception Handling in Java. Course Lecture Slides. 7. th. July. 2010. “ Admitting error . clears the . score. , . and . proves you . wiser . than . before.” . 1. Based on slides from Deitel & Associates, Inc.. Revised by T. A. Yang. 2. 3. 11.1  . Introduction. Exception . — an indication of a problem that occurs during a program’s execution. . The name “exception” implies that the problem occurs infrequently. . Types of exceptions. Checked exceptions:.  A checked exception is an exception that is typically a user error or a problem that cannot be foreseen by the programmer. For example, if a file is to be opened, but the file cannot be found, an exception occurs. These exceptions cannot simply be ignored at the time of compilation. Exception Handling and Event Handling. 1-. 2. Chapter 14 Topics. Introduction to Exception Handling. Exception Handling in Ada. Exception Handling in C++. Exception Handling in Java. Introduction to Event Handling. 2D Arrays, Exceptions. 2D arrays. 2D Arrays. Many applications have multidimensional structures:. Matrix operations. Collection of lists. Board games (Chess, Checkers). Images (rows and columns of pixels). Yoshi. http://java.sun.com/docs/books/tutorial/essential/exceptions. /. What is an Exception?. An exception is an event that occurs during the execution of a program that disrupts the normal flow of instructions. . Chapter 11 Error Handling. Motivations. When a program runs into a runtime error, the program terminates abnormally. How can you handle the runtime error so that the program can continue to run or terminate gracefully? . ERROR . vs. . EXCEPTION. Both.  Error and Exception are derived . from java.lang.Throwable.  in Java but main difference between Error and Exception is kind of error they represent. . . java.lang.Error. Exception Handling. University of Hail. College of Computer Science and Engineering. Department of Computer Science and Software Engineering. What is an Exception?. Indication of problem during execution. (Three unrelated concepts). Why use generics?. When you write a collection (something to store data, such as a linked list, . arraylist. , table, . etc. ), you want it to be usable with all kinds of data. You want it to be usable to store Strings, or usable to store integers.. CS1: Java Programming. Colorado State University. Original slides by Daniel Liang. Modified slides by Chris Wilcox. 2. Motivations. When a program runs into a runtime error, the program terminates abnormally. How can you handle the runtime error so that the program can continue to run or terminate gracefully? This is the subject we will introduce in this chapter.. Academic ResourceCenterOverviewExceptions definition and overviewTry/Catch BlocksFinally BlocksOverall ExampleChecked and Unchecked ExceptionsSummaryWhat is an exceptionIn its most general sense an ex