blocks|key|1331802|text|I+O错误是可能导致应用程序失败的东西，不应进行处理。异常是可能导致不可预测的结果，但可以恢复的东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1331803|示例：|1331804|如果程序已耗尽内存，这是一个错误，因为应用程序无法继续。但是，如果程序接受不正确的输入类型，这是一个异常，因为程序可以处理它，并重定向到接收正确的输入类型。|1331805|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

IMO an error is something that can cause your application to fail and should not be handled. An exception is something that can cause unpredictable results, but can be recovered from.

Example:

If a program has run out of memory it is an error as the application cannot continue. However, if a program accepts an incorrect input type it is an exception as the program can handle it and redirect to receive the correct input type.

blocks|key|1331853|text|错误主要由应用程序运行的环境引起。例如，当JVM内存不足时发生OutOfMemoryError，或者在堆栈溢出时发生StackOverflowError。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1331854|异常主要是由应用本身引起的。例如，当应用程序试图访问空对象时发生NullPointerException，或者当应用程序试图强制转换不兼容的类类型时发生ClassCastException。|1331855|来源：Difference+Between+Error+Vs+Exception+In+Java|offset|length|1331856|entityMap|0|LINK|mutability|MUTABLE|url|http://javaconceptoftheday.com/difference-between-error-vs-exception-in-java/^0|0|0|3|19|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Errors are mainly caused by the environment in which application is running. For example, OutOfMemoryError occurs when JVM runs out of memory or StackOverflowError occurs when stack overflows.

Exceptions are mainly caused by the application itself. For example, NullPointerException occurs when an application tries to access null object or ClassCastException occurs when an application tries to cast incompatible class types.

Source : <a href="http://javaconceptoftheday.com/difference-between-error-vs-exception-in-java/" rel="nofollow">Difference Between Error Vs Exception In Java</a>

blocks|key|1331950|text|@georgios-gousios的这篇slide+showing+Java's+exception+hierarchy简明扼要地解释了Java中错误和异常之间的区别。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1331951|​|1331952|📷|atomic|1331953|1331954|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/51681/georgios-gousios|1|https://speakerdeck.com/gousiosg/exception-handling-bug-hazards-on-android?slide=8|2|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/ee486cb5a3aba5034e9a5e7deac45ce8.png|imageAlt^0|0|H|0|K|14|1|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]|$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|17|8|@]|9|@$A|18|B|19|1|1A]]|C|$]]|$1|I|3|E|5|6|7|1B|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|1C|8|@]|9|@]|C|$]]]|K|$L|$5|M|N|O|C|$P|Q]]|R|$5|M|N|O|C|$P|S]]|T|$5|U|N|V|C|$W|X|Y|-4]]]]

This <a href="https://speakerdeck.com/gousiosg/exception-handling-bug-hazards-on-android?slide=8" rel="noreferrer">slide showing Java's exception hierarchy</a> by <a href="https://stackoverflow.com/users/51681/georgios-gousios">@georgios-gousios</a> concisely explains the differences between Errors and Exceptions in Java.

<a href="https://i.stack.imgur.com/v2NAj.png" rel="noreferrer"><img src="https://i.stack.imgur.com/v2NAj.png" alt="Java Exception Hierarchy"></a>

blocks|key|1547338|text|错误是由应用程序或程序运行的环境引起的。大多数情况下，您可能无法从中恢复，因为这会结束您的应用程序或程序。Javadoc建议你不应该费心去捕捉这样的错误，因为处理这样的错误的环境，比如JVM，无论如何都会退出。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1547339|示例：VirtualMachineError+-抛出，表示Java+Virtual+Machine已损坏或耗尽了继续运行所需的资源。当JVM内存不足时会发生OutOfMemoryError，或者堆栈溢出时会发生StackOverflowError。|offset|length|style|CODE|1547340|异常是由您的应用程序或程序本身引起的；可能是由于您自己的错误。大多数情况下，您可以从它恢复，并且您的应用程序仍将继续运行。建议您捕获此类错误，以防止应用程序或程序的异常终止和/或能够自定义异常消息，以便用户看到格式良好的消息，而不是散布在各处的默认丑陋异常消息。|1547341|示例:当应用程序试图访问空对象时，就会发生NullPointerException。或者尝试使用不存在的索引访问数组，或者使用错误的数据或参数调用函数。|1547342|entityMap^0|0|3|J|26|G|2X|I|0|0|L|K|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]|$D|R|E|S|F|G]|$D|T|E|U|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@$D|X|E|Y|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|M|$]]

Errors are caused by the environment where your application or program runs. Most times, you may not recover from it as this ends your application or program. Javadoc advised that you shouldn't bother catching such errors since the environment e.g. JVM, on such errors is going to quit anyway.

Examples:
<code>VirtualMachineError</code> - Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
<code>OutOfMemoryError</code> occurs when JVM runs out of memory or 
<code>StackOverflowError</code> occurs when stack runs over.

Exceptions are caused by your application or program itself; maybe due to your own mistake. Most times you can recover from it and your application would still continue to run. You are advised to catch such errors to prevent abnormal termination of your application or program and/or to be able to customize the exception message so the users see a nicely formatted message instead of the default ugly exception messages scattered all over the place.

Examples:
<code>NullPointerException</code> occurs when an application tries to access null object. or
Trying to access an array with a non-existing index or calling a function with wrong data or parameters.

I'm trying to learn more about basic Java and the different types of Throwables, can someone let me know the differences between Exceptions and Errors?

Differences between Exception and Error

Java

我正在努力学习更多关于基本Java和不同类型的Throwables的知识，有人能告诉我异常和错误之间的区别吗？

问异常与错误的区别
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问异常与错误的区别EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问异常与错误的区别
EN