---
title: "Who and how handle the exception when we use throws?"  
description: "Who and how handle the exception when we use throws?"  
author: "Revati S Misra"  
published: 2023-07-28  
updated: 2023-07-29  
canonical: https://www.mindstick.com/forum/159349/who-and-how-handle-the-exception-when-we-use-throws  
category: "exception handling"  
tags: ["exception handling", "exception"]  
reading_time: 2 minutes  

---

# Who and how handle the exception when we use throws?

Who and how [handle](https://www.mindstick.com/articles/311004/suede-skillet-handle-cover) the [exception](https://www.mindstick.com/articles/1824/objective-c-exception-handling) when we use throws?

## Replies

### Reply by Aryan Kumar

The `throws` keyword in Java is used to declare that a method can throw an exception. This means that the method does not handle the exception itself, but instead passes it on to the caller of the method. The caller of the method is then responsible for handling the exception or propagating it further.

The `throws` keyword is used in the method signature, after the method name and parameter list. The `throws` keyword is followed by a comma-separated list of the exceptions that the method can throw.

For example, the following method declaration declares that the `readFile()` method can throw an `IOException` exception:

Java

```plaintext
public void readFile(String fileName) throws IOException {
  // ...
}
```

If the `readFile()` method encounters an `IOException` while reading the file, it will throw the exception. The caller of the `readFile()` method will then need to handle the exception or propagate it further.

How the exception is handled depends on the caller of the method. The caller may choose to:

- **Handle the exception:** This means that the caller will catch the exception and take some action to deal with it. For example, the caller might print an error message or terminate the program.
- **Propagate the exception:** This means that the caller will not handle the exception, but will instead pass it on to the next method in the call stack. The next method can then handle the exception or propagate it further.

The `throws` keyword is a powerful tool that can be used to handle exceptions in Java. By using the `throws` keyword, you can ensure that exceptions are handled in a consistent manner throughout your code.


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Original Source: https://www.mindstick.com/forum/159349/who-and-how-handle-the-exception-when-we-use-throws

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