Java Custom Exception Example Invalid Account Type Handling in Online Banking System

Описание: In this Java tutorial, we create an Online Banking System that validates user-selected account types using a Custom Exception. This example demonstrates how to detect invalid account types and handle them gracefully with a clean try-catch block — perfect for Java practicals, assignments, and interview preparation.

What you will learn in this video:

Creating a custom exception (InvalidAccountTypeException)

Validating account types entered by the user

Throwing and handling exceptions in real-world scenarios

Applying OOP and exception handling concepts in Java

Beginner-friendly Java code for labs and viva exams

Valid account types: Savings, Current, Fixed Deposit
If the user enters anything else, the program throws and handles the exception with a helpful message.

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