PPT-Exception Handling
Author : jane-oiler | Published Date : 2017-04-18
Andy Wang Object Oriented Programming in C COP 3330 Exception Handling A type of error checking available in many programming languages Exception Some sort of problem
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Exception Handling: Transcript
Andy Wang Object Oriented Programming in C COP 3330 Exception Handling A type of error checking available in many programming languages Exception Some sort of problem or error that occurs during a programs execution. Recitation – 10/(23,24)/2008 . CS 180. Department of Computer Science, . Purdue University. Announcements. Project . 6 . is . out. 2 week project. Milestone Due October 29, 10:00pm. Final Submission Due November . 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. . What happens when a program has a run-time error?. In most cases, the program terminates abnormally, possibly displaying a cryptic message to the user (or no message at all). in . unix. , such errors often place “core” dumps in your directory. 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. . 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.. Handling errors using Java’s exception handling mechanism. Approaches For Dealing With Error Conditions. Use branches/decision making and return values. Use Java’s exception handling mechanism. Class . Chapter 11. Reading and Writing . Textfiles. Data is often stored in files such as a text file. We need to read that data into our program. Simplest mechanism. Scanner class. First construct a FileReader object with the name of the input file.. Chapter 11. Reading and Writing . Textfiles. Data is often stored in files such as a text file. We need to read that data into our program. Simplest mechanism. Scanner class. First construct a FileReader object with the name of the input file.. Chapter 11. Reading and Writing . Textfiles. Data is often stored in files such as a text file. We need to read that data into our program. Simplest mechanism. Scanner class. First construct a FileReader object with the name of the input file.. Input / Output and Exception Handling Chapter 11 Reading and Writing Textfiles Data is often stored in files such as a text file We need to read that data into our program Simplest mechanism Scanner class Damian Gordon. Exception Handling. When an error occurs in a program that causes the program to crash, we call that an “. exception. ” (since something exceptional has occurred).. We say that “. 27 7Exception Handling TablesThis section describes the data that the compiler generates to enable the runt-ime to find appropriate information on the actions to take in case of excep-tion71OverviewTh Errors can be broadly categorized into two types. We will discuss them one by one.. 1.Compile Time Errors. 2.Run Time Errors. Compile Time Errors . – Errors caught during compiled time is called Compile time errors. Compile time errors include library reference, syntax error or incorrect class import.. 1. What is it?. Exception handling enables a program to deal with exceptional situations . and . continue . its normal execution. .. Runtime errors . occur while a program is running if the JVM detects an operation that .
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