JAVA Foundation Course | Chapter 7: Exception Handling in Java by Prakhar Chauhan | Learn Smarter
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Chapter 7: Exception Handling in Java

Exception handling in Java is essential for managing unexpected events that disrupt a program's flow. Using try-catch-finally constructs, developers can safeguard their applications against runtime errors while providing meaningful feedback to users. Key features include throwing exceptions manually and declaring methods that may trigger exceptions, which collectively enhance code robustness.

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Sections

  • 7

    Exception Handling In Java

    This section covers exception handling in Java, explaining what exceptions are, their types, and how to manage exceptions using mechanisms like try-catch blocks.

    Learning Practice

  • 7.1

    What Is An Exception?

    An exception is an unexpected event that occurs during program execution, disrupting the normal flow, and Java provides a mechanism to handle these exceptions.

    Learning Practice

  • 7.2

    Error Vs Exception

    This section differentiates between errors and exceptions in Java programming, outlining their characteristics and handling methods.

    Learning Practice

  • 7.3

    Why Use Exception Handling?

    Exception handling prevents program crashes, provides user-friendly error messages, and maintains code cleanliness.

    Learning Practice

  • 7.4

    Syntax Of Try-Catch Block

    The try-catch block in Java allows developers to handle exceptions gracefully by encapsulating risky code and managing potential errors effectively.

    Learning Practice

  • 7.5

    Common Exception Types

    This section covers the various common exceptions encountered in Java programming, detailing when each occurs.

    Learning Practice

  • 7.6

    Example: Array Index Exception

    This section provides an example of handling an ArrayIndexOutOfBoundsException in Java through a simple try-catch block.

    Learning Practice

  • 7.7

    Catching Multiple Exceptions

    In Java, multiple exceptions can be caught using separate catch blocks, allowing for more precise error handling.

    Learning Practice

  • 7.8

    General Catch Block

    The general catch block in Java is used to handle any exceptions that are not specifically caught by previous catch statements, allowing for graceful error handling.

    Learning Practice

  • 7.9

    What Is Finally?

    The 'finally' block in Java is executed regardless of whether an exception occurs or not, allowing for cleanup actions to occur after operations.

    Learning Practice

  • 7.10

    Using Throw To Manually Raise Exception

    This section discusses how to manually raise exceptions in Java using the 'throw' keyword.

    Learning

  • 7.11

    Using Throws To Declare Exception

    This section covers the use of the `throws` keyword in Java to declare that a method can throw specific exceptions, thus providing a way to handle exceptions at a higher level.

    Learning Practice

  • 7.12

    Real-World Analogy

    This section draws parallels between Java's exception handling mechanisms and real-world scenarios to aid understanding.

    Learning Practice

References

Untitled document (20).pdf

Class Notes

Memorization

What we have learnt

  • Exceptions are run-time pro...
  • Use try-catch-finally to ma...
  • Use throw to raise exceptio...

Final Test

Revision Tests