Exception is an unwanted or unexpected event, which occurs during the execution of a program i.e at run time, that disrupts the normal flow of the program’s instructions.
exception handling is the process of responding to the occurrence of exceptions – anomalous or exceptional conditions requiring special processing – during the execution of a program.
There are exceptions that the programme will know are a possibility when an application interacts with a resource or a user and these exceptions can be handled.
Built-in Exceptions:
Built-in exceptions are the exceptions which are available in Java libraries. These exceptions are suitable to explain certain error situations.
For example ArithmeticException
User-Defined Exceptions:
Sometimes, the built-in exceptions in Java are not able to describe a certain situation. In such cases, user can also create exceptions which are called ‘user-defined Exceptions’.
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