<h2 id="heading-error-handling">Error Handling :</h2>
<ul>
<li><h2 id="heading-exceptions">Exceptions :</h2>
</li>
<li><p>Your Dart code can throw and catch exceptions.</p>
</li>
<li><p>Exceptions are errors indicating that something unexpected happened.</p>
</li>
<li><p>If the exception isn't caught, the isolate that raised the exception is suspended, and typically the isolate and its program are terminated.</p>
</li>
<li><p>In contrast to Java, all of Dart's exceptions are unchecked exceptions.</p>
</li>
<li><p>Methods don't declare which exceptions they might throw, and you aren't required to catch any exceptions.</p>
</li>
<li><p>Dart provides <code>Exception</code> and <code>Error</code> types, as well as numerous predefined subtypes.</p>
</li>
<li><p>You can, of course, define your own exceptions.</p>
</li>
<li><p>However, Dart programs can throw any non-null object—not just Exception and Error objects—as an exception.</p>
</li>
</ul>
<h3 id="heading-throw">Throw</h3>
<pre><code class="lang-dart"><span class="hljs-keyword">throw</span> FormatException(<span class="hljs-string">'Expected at least 1 section'</span>);
</code></pre>
<pre><code class="lang-dart">
<span class="hljs-keyword">throw</span> <span class="hljs-string">'Out of llamas!'</span>;
</code></pre>


## Error Handling :

* ## Exceptions :
    
* Your Dart code can throw and catch exceptions.
    
* Exceptions are errors indicating that something unexpected happened.
    
* If the exception isn't caught, the isolate that raised the exception is suspended, and typically the isolate and its program are terminated.
    
* In contrast to Java, all of Dart's exceptions are unchecked exceptions.
    
* Methods don't declare which exceptions they might throw, and you aren't required to catch any exceptions.
    
* Dart provides `Exception` and `Error` types, as well as numerous predefined subtypes.
    
* You can, of course, define your own exceptions.
    
* However, Dart programs can throw any non-null object—not just Exception and Error objects—as an exception.
    

### Throw

```dart
throw FormatException('Expected at least 1 section');
```

```dart

throw 'Out of llamas!';
```

Dart Error Handling

Error Handling :

Exceptions :

Throw