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ArrayIndexOutOfBoundsException

Definition

ArrayIndexOutOfBoundsException is an exception that occurs when trying to access an invalid index position in an array. It is thrown to indicate that the index used to access an array is either negative or greater than or equal to the size of the array.

Analogy

Imagine you have a jar with 10 cookies, numbered from 0 to 9. If someone asks you for cookie number 11, which doesn't exist in the jar, you would tell them there's an "ArrayIndexOutOfBoundsException" because they are trying to access a non-existent cookie.

Related terms

Exception handling: The process of dealing with and responding to exceptional situations or errors that occur during program execution.

Bounds checking: The practice of verifying whether an index value falls within the valid range of indices before accessing elements in an array.

Runtime error: An error that occurs during program execution rather than during compilation.



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© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.