blocks|key|237922|text|是。从RuntimeException扩展MyUncheckedException。然而，下面是来自documentation的指南|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|237923|237924|一般来说，不要抛出RuntimeException或创建RuntimeException的子类，因为您不想为指定方法可以抛出的异常而烦恼。|blockquote|237925|237926|这里是底线指导原则:如果可以合理地期望客户端从异常中恢复，则将其设置为检查异常。如果客户端无法执行任何操作来从异常中恢复，则将其设置为未检查的异常。|237927|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/6/docs/api/java/lang/RuntimeException.html|1|http://docs.oracle.com/javase/tutorial/essential/exceptions/runtime.html^0|3|G|L|K|1S|2|3|G|0|1E|D|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]|$9|12|A|13|B|D]]|E|@$9|14|A|15|1|16]|$9|17|A|18|1|19]]|F|$]]|$1|G|3|-4|5|6|7|1A|8|@]|E|@]|F|$]]|$1|H|3|I|5|J|7|1B|8|@]|E|@]|F|$]]|$1|K|3|-4|5|6|7|1C|8|@]|E|@]|F|$]]|$1|L|3|M|5|6|7|1D|8|@]|E|@]|F|$]]|$1|N|3|-4|5|6|7|1E|8|@]|E|@]|F|$]]]|O|$P|$5|Q|R|S|F|$T|U]]|V|$5|Q|R|S|F|$T|W]]]]

Yes. Extend <code>MyUncheckedException</code> from <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/RuntimeException.html"><code>RuntimeException</code></a>. However, below is the guideline from <a href="http://docs.oracle.com/javase/tutorial/essential/exceptions/runtime.html">documentation</a>

<blockquote>
 Generally speaking, do not throw a RuntimeException or create a
 subclass of RuntimeException simply because you don't want to be
 bothered with specifying the exceptions your methods can throw.
 
 Here's the bottom line guideline: If a client can reasonably be
 expected to recover from an exception, make it a checked exception. If
 a client cannot do anything to recover from the exception, make it an
 unchecked exception.
</blockquote>

blocks|key|237941|text|我想你只是想继承RuntimeException的子类？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|237942|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I think you're just wanting to subclass RuntimeException?

blocks|key|2904741|text|是-从RuntimeException派生|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2904742|请确保您这样做的原因是正确的:通常，运行时异常表示编程错误，而不是程序可能以某种有意义的方式对其做出反应的错误。|2904743|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/RuntimeException.html^0|3|G|3|G|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Yes - derive it from <a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/RuntimeException.html" rel="noreferrer"><code>RuntimeException</code></a>

Make sure that you do it for the right reason: as a rule, runtime exceptions indicate programming errors, rather than errors that a program could potentially react to in some meaningful way.

blocks|key|2904771|text|是。根据Effective+Java+-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2904772|2904773|虽然Java+Language+Specification不要求这样做，但有一个很强的约定，即保留错误供Java虚拟机使用，以指示资源不足、不变的故障或其他使其无法继续执行的条件。考虑到这个约定几乎被普遍接受，最好不要实现任何新的Error子类。因此，您实现的所有未检查的可抛出对象都应该(直接或间接)子类RuntimeException。|blockquote|2904774|2904775|2904776|下面推荐使用未检查的异常:-|2904777|2904778|使用运行时异常来指示编程错误。|ordered-list-item|2904779|如果您认为某个条件可能允许恢复，请使用检查过的异常；否则，请使用运行时异常。如果不清楚是否可以恢复，最好使用未检查的异常。|2904780|2904781|关于记录未检查的异常-|2904782|2904783|使用Javadoc+@throws标记来记录方法可以抛出的每个未检查异常，但不要使用throws关键字在方法声明中包含未检查异常。|2904784|2904785|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|10|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|12|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|13|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|15|8|@]|9|@]|A|$]]|$1|N|3|O|5|M|7|16|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|17|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|18|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|T|3|U|5|E|7|1A|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|X|$]]

YES. According to Effective Java -

<blockquote>
 While the Java Language Specification does not require it, there is a strong
 convention that errors are reserved for use by the JVM to indicate resource deficiencies, invariant failures, or other conditions that make it impossible to continue execution. Given the almost universal acceptance of this convention, it’s best not to implement any new Error subclasses. Therefore, all of the unchecked throwables you implement should subclass RuntimeException (directly or indirectly).
</blockquote>

Below usage of unchecked exception is recommended :- 

<ol>
<li>Use runtime exceptions to indicate programming errors. </li>
<li>If you believe a condition is likely to allow for recovery, use a checked exception; if not, use a runtime exception. If it isn’t clear whether recovery is possible, you’re probably better off using an unchecked exception. </li>
</ol>

About documenting unchecked exception -

<blockquote>
 Use the Javadoc @throws tag to document each unchecked exception that
 a method can throw, but do not use the throws keyword to include unchecked
 exceptions in the method declaration.
</blockquote>

blocks|key|2904808|text|我将在这里留下一个例子，以防万一：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2904809|public+class+MyCustomException+extends+RuntimeException+{

++++public+MyCustomException(String+message)+{
++++++++super(message);
++++}

}|code-block|syntax|javascript|2904810|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I'll leave an example here, just in case:

<pre><code>public class MyCustomException extends RuntimeException {

 public MyCustomException(String message) {
 super(message);
 }

}
</code></pre>

Is it possible to create my own unchecked exception in Java?

Basically, I'd like to

<ul>
<li>Have my own exception class, <code>MyUncheckedException</code></li>
<li>That does not make me update all methods that call the method that throws this exception with a flood of own <code>throws</code></li>
</ul>

Is it possible to create my own unchecked Exception in Java?

虚拟机

Java

是否可以在Java中创建我自己的未检查异常？基本上，我想exception类有我自己的exception类，MyUncheckedExceptionThat不会让我用大量的自己的throws更新所有调用抛出这个异常的方法的方法

问是否可以在Java中创建我自己的未检查异常？
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