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Exception class hierarchy - PowerPoint PPT Presentation

13 Handling errors

13 Handling errors

13 Handling errors. Main concepts to be covered. Defensive programming. Anticipating that things could go wrong. Exception handling and throwing. Error reporting. Typical error situations. Incorrect implementation. Does not meet the specification. Inappropriate object request.

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618 views • 61 slides
Week 13

Week 13

Week 13. Chapter 12 Exceptions (from slides provided by textbook web site). Handling errors. 2.1. Some causes of error situations. Incorrect implementation. Does not meet the specification. Inappropriate object request. E.g., invalid index. Inconsistent or inappropriate object state.

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580 views • 57 slides
Program Correctness and Efficiency

Program Correctness and Efficiency

Program Correctness and Efficiency. Chapter 2. Chapter Objectives. To understand the differences between the three categories of program errors To understand the effect of an uncaught exception and why you should catch exceptions

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620 views • 47 slides
Exceptions

Exceptions

Exceptions. When things go TRAGICALLY AWRY. How things go TRAGICALLY AWRY. User enters bad data Programmer makes a mistake Another method/program passes bad data to a method System problems happen. When others use your program.

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445 views • 31 slides
Exceptions

Exceptions

Exceptions. Exceptions. Many problems in code are handled when the code is compiled, but not all Some are impossible to catch before the program is run Must run the program to actually determine the values of variables, get user input, etc.

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389 views • 30 slides
Chapter 10: Exceptions and I/O Streams

Chapter 10: Exceptions and I/O Streams

Chapter 10: Exceptions and I/O Streams . Original Slides by John Lewis and William Loftus Modified significantly by Bob Roggio. Exceptions and I/O Streams. Now we can explore two related topics further: exceptions and input/output streams Chapter 8 focuses on: Exception Handling

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532 views • 28 slides
Lecture 10 Exceptions

Lecture 10 Exceptions

Lecture 10 Exceptions. Richard Gesick. Topics. Exception Handling Using try and catch Blocks Catching Multiple Exceptions User-Defined Exceptions. Exceptions. Illegal operations at run time can generate an exception. For example, we have seen these exceptions: ArithmeticException

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483 views • 26 slides
CSI 1102

CSI 1102

CSI 1102. Abdulmotaleb El Saddik University of Ottawa School of Information Technology and Engineering ( SITE ) Multimedia Communications Research Laboratory ( MCRLab ) Distributed Collaborative Virtual Environments ( DISCOVER ) abed @ mcrlab.uottawa.ca http://www.mcrlab.uottawa.ca/.

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222 views • 20 slides
Java Exceptions

Java Exceptions

Java Exceptions. Intro to Exceptions. What are exceptions? Events that occur during the execution of a program that interrupt the normal flow of control. One technique for handling Exceptions is to use return statements in method calls.

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318 views • 16 slides
Errors and Exceptions

Errors and Exceptions

Errors and Exceptions. The objectives of this chapter are: To understand the exception handling mechanism defined in Java To explain the difference between errors and exceptions To show the use and syntax of exceptions To describe how to create your own exception classes.

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349 views • 16 slides
ECE 122 Engineering Problem Solving with Java Lecture 24 Exceptions

ECE 122 Engineering Problem Solving with Java Lecture 24 Exceptions

ECE 122 Engineering Problem Solving with Java Lecture 24 Exceptions. Overview. Problem: Can we detect run-time errors and take corrective action? Try-catch Test for a variety of different program situations Java provides a series of test cases

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261 views • 13 slides

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