Summary  
This chapter explains how to use try-catch blocks to handle exceptions during input parsing and how to wrap that logic in a loop to repeatedly prompt until valid data is entered.

General domain of usage  
User input validation

### Recap:

- `try-catch` blocks can be used for avoiding program crashes in case of invalid inputs;
- The code that parses user input can be enclosed into a `try` block, and an error message can be displayed to the user via the `catch` block in case the parsing fails;
- We can enclose the `try-catch` block into an infinite `while` loop, which breaks after the user input is successfully parsed and stored. This way, we can make sure that instead of crashing, the program prompts the user for input until the user gives the correct input.


In a try-catch structure, where should the code that might throw an exception be placed?

What will happen if the user enters "abc" when prompted?

This course will give you a solid foundation to begin making applications using .NET in C#. Covering console applications, asynchronous programming, web services, database fundamentals, and ADO.NET CRUD operations, you'll gain practical skills. From creating apps and handling exceptions to optimizing database access, this course ensures a robust understanding of essential .NET development concepts.

This module will give you a solid foundation to begin making applications using .NET in C#. Covering console applications, asynchronous programming, web services, database fundamentals, and ADO.NET CRUD operations, you'll gain practical skills. From creating apps and handling exceptions to optimizing database access, this course ensures a robust understanding of essential .NET development concepts.

Dealing with Exceptions caused by User Input

Recap:

1. In a try-catch structure, where should the code that might throw an exception be placed?

2. What will happen if the user enters "abc" when prompted?