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What Is Error Handling?
Error handling involves anticipating and managing potential failures in a program. For example, if a program tries to read a non-existent file, a well-designed error handling mechanism can prevent crashes or unpredictable behavior.
Three Types of Errors in Programming
Programming errors can be divided into three categories: Syntax Errors, Runtime Errors, and Logical Errors. Understanding these helps in better diagnosing and managing errors.
Explaining Error Handling Strategy
An error handling strategy outlines actions a program takes when a task fails due to temporary issues. This might involve retries, logging the error, or taking alternative routes in the program.
When to Implement Error Handling
Error handling is crucial when a program interacts with external systems like file systems or databases. It ensures that such interactions don't result in program crashes or unintended outcomes.
Error Handling vs Exception Handling
Errors and exceptions serve different roles. Errors often indicate irrecoverable issues, while exceptions are conditions that should be caught and handled to maintain program integrity.
Types of Error Control Mechanisms
Two primary error-control mechanisms are used in communications: forward error control and feedback error control. The former involves sending extra redundant data to help the receiver identify and locate errors.
Basic to Advanced Error Detection Techniques
From parity checks to more advanced methods like checksums and cyclic redundancy checks, there are various techniques offering robust error detection capabilities.
Common Error Detection Methods
Several error detection methods, such as Single Parity Check and Two-dimensional Parity Check, are widely utilized. Each offers different levels of reliability and complexity.
Understanding Random vs Systematic Errors
Errors can be random or systematic. Random errors occur unpredictably, while systematic errors follow a consistent pattern and can often be corrected.