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Chapter 17 Exceptions and Assertions

Chapter 17 Exceptions and Assertions

Chapter 17 Exceptions and Assertions. Objectives. To know what is exception and what is exception handling (§17.2). To distinguish exception types: Error (fatal) vs. Exception (non-fatal), and checked vs. uncheck exceptions (§17.2). To declare exceptions in the method header (§17.3).

By helen
(130 views)

Introduction to Java

Introduction to Java

Introduction to Java. 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?. Errors to Consider. User input errors

By curran-farrell
(116 views)

Chapter 17 Exceptions and Assertions

Chapter 17 Exceptions and Assertions

Chapter 17 Exceptions and Assertions. Objectives. To know what is exception and what is exception handling (§17.2). To distinguish exception types: Error (fatal) vs. Exception (non-fatal), and checked vs. uncheck exceptions (§17.2). To declare exceptions in the method header (§17.3).

By sophian
(0 views)


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Exceptions

Exceptions. Another form of control hazard Could be caused by… Arithmetic overflow (how do we know?) Divide by 0 Undefined opcode in instruction Illegal memory address Syscall. Handling an exception . What the system must do: Save address of offending instruction

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Exceptions

Exceptions

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Exceptions

Exceptions

Exceptions. All Exception classes look like this! Define your own exception class to distinguish your exceptions from any other kind. public class AssertionException extends Exception { AssertionException() { super(); } AssertionException(String s) { super(s); } }

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Exceptions

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Exceptions

Exceptions

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