blocks|key|757654|text|我能够通过“刷新”项目来“恢复”箭头和退格键。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757655|​|757656|📷|atomic|offset|length|757657|757658|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/37b4f08c79b2a53d84c4e04b0d04f5f8.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

I was able to "restore" arrow and backspace keys by "Refreshing" the project.

<img src="https://i.stack.imgur.com/rVuHc.png" alt="Eclipse project refresh">

blocks|key|973332|text|如果您在Eclipse+Windows上看到相同的症状，只需同时按下所有鼠标按钮(包括滚轮，如果您有一个)，这似乎可以解决它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973333|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|$]]

If you see the same symptoms on Eclipse Windows, just press all your mouse buttons (including the wheel if you have one) at the same time together, and that seems to fix it.

blocks|key|757395|text|同样奇怪的问题，这也适用于我:我刚刚发现，如果我切换编辑器，然后再次返回，backspace就会重新开始工作。(source)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|757396|entityMap|0|LINK|mutability|MUTABLE|url|http://bugs.eclipse.org/bugs/show_bug.cgi?id=110916#c1^0|1K|6|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Same weird problem, this worked for me: I just figured out that if I switch editor and then back again, backspace starts working again. (<a href="http://bugs.eclipse.org/bugs/show_bug.cgi?id=110916#c1" rel="noreferrer">source</a>)

blocks|key|757342|text|在Windows和Linux环境中，当系统认为修改键被按下时，我遇到过这样的问题。通过按下并释放所有修改键，问题通常会消失。然而，在OSX上我没有遇到这样的问题，所以这可能是完全错误的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757343|如果这个简单的想法不能解决问题，您可以尝试启动一个新的工作区，看看是不是某个首选项导致了这个问题；或者，您可以下载一个新的Helios实例来检查它是否正常工作。我知道，这些都是严重的问题，但可能会找到问题所在。|757344|否则，你应该看看不久前about+keyboard+issues问的问题，也许有一些提示如何解决它。|offset|length|757345|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/5254906/keyboard-setup-for-eclipse-on-mac^0|0|0|B|L|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]]]]

In Windows and Linux environments I have experienced such issues when the system believes a modifier key is pressed. By pressing and releasing all modifier keys the issues often perish. However, on OSX I did not experience such issues, so this might be entirely wrong.

If the simple idea does not solve the issue, you could try to start a new workspace to see whether some preference causes the issue; or you could download a new Helios instance to check whether its working. I know, these are all serious issues, but may locate the problem.

Otherwise, you shall take a look at the question asked not long ago <a href="https://stackoverflow.com/questions/5254906/keyboard-setup-for-eclipse-on-mac">about keyboard issues</a>, maybe there is some hint how to solve it.

blocks|key|757486|text|在Windows+Vista上的Eclipse3.7.0中，我用"Delete“键也遇到了同样的问题。突然钥匙停了，我也搞不明白为什么。最近，当问题出现时，我找到了一种解决方法--每次都对我有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757487|在Eclipse的代码编辑器窗口中，将鼠标悬停在某个方法或变量上，直到弹出窗口出现，右下角显示"Press+'F2‘for+focus“。单击弹出窗口切换焦点，然后再次单击编辑器窗口以使弹出窗口消失，然后再次按Delete键。|757488|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I had the same problem with the "Delete" key in Eclipse 3.7.0 on Windows Vista. Suddenly the key stopped working and I couldn't figure out why. Recently I found a way to fix it when the problem occurs - it works for me every time:

In a code editor window in Eclipse, hoover on some method or variable or what have you, until the popup window appears with "Press 'F2' for focus" in the lower right corner. Click the popup window to switch focus, then click the editor window again so the pop-up disappears, and voilà, the Delete key works again.

blocks|key|973122|text|也有同样的问题。原来是我的无线鼠标的中键被按在我的笔记本电脑包里。通常我会关闭鼠标，但这次我忘了。很高兴其他人也有这个问题，否则我还会继续寻找原因。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973123|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|$]]

Had this same issue. Turned out to be my middle button on my wireless mouse being pushed in my laptop bag. Normally I turn my mouse off, but this time I forgot. Glad that other people had this problem, otherwise I'd still be looking for the cause.

blocks|key|973410|text|在Win+XP上使用eclipse+JUNO时，我也遇到了这个问题。使用File+>+Restart重新启动工作台不起作用，但关闭eclipse并在命令提示符下使用-clean重新启动，这些键将重新开始工作，而不会重新启动windows。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973411|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|$]]

Using eclipse JUNO on Win XP I also experience this issue.
Restarting the workbench using File > Restart does not work, but closing eclipse and starting again with -clean at the command prompt the keys start functioning again, without restart windows.

blocks|key|757929|text|注意--只是在别处找到了这个修复--你可以在Mac上通过强制杀死finder来修复这个问题。这对我来说非常有效。不需要重新启动！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757930|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|$]]

Note - Just found this fix elsewhere - you can fix this on Mac OSX by force-killing finder. That worked for me perfectly. Didn't need to restart!

blocks|key|973678|text|出于某种奇怪的原因，打开preferences+window并立即关闭它，为我解决了这个问题(这里的其他解决方案不起作用)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|973679|entityMap^0|C|I|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

For some odd reason, opening the <code>preferences window</code> and closing it right away, solves this problem for me (other solutions here didn't work).

blocks|key|757440|text|MacBook专业10.6.8，Eclipse+Helios突然删除和箭头不再工作。重新启动对我来说很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757441|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|$]]

MacBook Pro 10.6.8, Eclipse Helios all of a sudden delete and arrows no longer work. Reboot worked for me.

blocks|key|757605|text|当我开始使用JRobot时，我也遇到了同样的问题。在一段代码中，我按下了鼠标，但没有松开。通过在后面的代码中释放鼠标，我设法解决了这个问题。您可以使用以下代码重新创建此问题。释放鼠标按钮以解决问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757606|Robot+robot;

try+{
+robot+=+new+Robot();+++++++
+robot.mousePress(InputEvent.BUTTON2_MASK);
+//robot.mouseRelease(InputEvent.BUTTON2_MASK);
}+catch+(AWTException+e1)+{
//+TODO+Auto-generated+catch+block
+e1.printStackTrace();
}|code-block|syntax|javascript|757607|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 got this same problem when I started using JRobot. In one piece of code I pressed the mouse but did not release. By releasing the mouse in a later piece of code I managed to solve the issue. You can recreate this problem using the code below. Release the mouse button to solve the issue.

<pre class="lang-java prettyprint-override"><code>Robot robot;

try {
 robot = new Robot(); 
 robot.mousePress(InputEvent.BUTTON2_MASK);
 //robot.mouseRelease(InputEvent.BUTTON2_MASK);
} catch (AWTException e1) {
// TODO Auto-generated catch block
 e1.printStackTrace();
}
</code></pre>

blocks|key|757711|text|我也面临着同样的问题。在我的例子中，只有delete键不起作用。我正在使用ubuntu中的eclipse+helios。这里给出的解决方案不起作用。但是，重新启动可以解决此问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|757712|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 am also facing the same problem. In my case only the delete key is not working. I am using eclipse helios in ubuntu. The solutions given here are not working. However, restarting solves the issue.

blocks|key|973445|text|我怀疑这是在我的Mac上更新Java之后发生的。因此，在更新Java之后，总是重启机器似乎是个好主意。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973446|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 have the suspicion that this happens after updating Java on my Mac. So after updating Java it seems to be a good idea to reboot the machine always.

blocks|key|973555|text|同时按下鼠标左键和右键多次对我起作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973556|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|$]]

Pressing left and right mouse buttons simultaneosly multiple times worked for me.

blocks|key|973632|text|在Redhat上使用eclipse露娜(4.4)，通过Xming+(Windows7，64位)查看，我不能使用退格键，箭头，删除，甚至回车，但字母数字工作。这个问题不是间歇性的，但从一开始就一直存在。对我来说，我发现在代码中设置一个断点，运行并允许eclipse切换透视图，每次都可以解决这个问题。希望这对其他人有所帮助，因为上面的建议(即切换编辑器、更改键映射、刷新和重新启动eclipse)对我不起作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973633|我遇到的问题的一个有趣的诊断是，在您更改键映射的屏幕上，我能够使用delete键。而不是在java文件或未命名的文本文件中。|973634|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Using eclipse Luna (4.4) on Redhat and viewing via Xming (Windows 7, 64-bit), I could not use backspace, arrows, delete or even enter, but alphanumeric worked. This problem was not intermittent, but always there from the start. For me, I found that setting a break-point in the code, running and allowing eclipse to switch perspectives fixed it every time. Hope it helps someone else as the above suggestions (ie switching editors, changing key mappings, refreshing and restarting eclipse) did not work for me.

One interesting diagnostic of the problem I had was that going to the screen where you change the key-mappings, I was able to use the delete key. But not in java files or untitled text files.

blocks|key|973768|text|成功了！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973769|我使用的是Eclipse、露娜和Windows7，但我猜它也适用于所有类型。|973770|在Eclipse中，转到选项卡窗口->首选项->常规->键|973771|然后，在列表中找到命令"Delete“和"Delete+Previous”，并检查它们是否被赋予了什么。如果它被分配了错误的键，点击"Unbind+Command“。|973772|只需选择您想要更改的命令，然后在"binding“字段中按下您想要的键。|973773|我认为它适用于下一列、下一列、上一列、下一列，或者其他你想要的！！|973774|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|P|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Q|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

WORKED!!!

I'm using Eclipse Luna and Windows 7, but guess it works in all kinds as well.

In Eclipse, go to tab Window->preferences->General->keys

Then, find the Command "Delete" and "Delete Previous" in the list, and check if 
they are assign with something or not. If it is assign with the wrong key, click in "Unbind Command".

Just select the command that you want to change and press the key that you want to be on the "binding" field.

I think it works for Next, Next Column, Previous, Previous Column, Line Up, Line Down, or whatelse you want!!

blocks|key|973839|text|有类似的“enter”和“delete”不起作用的问题，上面的方法都没有帮助我--为了解决这个问题，我不得不切换到默认的java格式化程序(我使用的一个格式化程序不知何故停止了工作)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|973840|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|$]]

Had, similar problem with not working “enter” and “delete”, none of above methods helped me – to fix problem I had to switch to default java formatter (one I was using somehow stopped working)

blocks|key|758299|text|对我来说，键盘布局意外地更改为越南语，并且存在固有的键映射组合，这在编辑时会造成麻烦。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|758300|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|$]]

For me it was that the keyboard layout accidentally changed to vietnamese language and there are inherent key mapping combinations that create trouble when editing.

I am using Helios on Mac Snow Leopard. I don't know why but all of a sudden my arrow keys and delete button start not working only on Eclipse (so Eclipse ignores them) but the rest of the buttons works just fine. There is no exception/error thrown anywhere on the screen. I don't exactly know how to reproduce this malfunctioning. 

All I can say, I am having exactly the same problem with this guy down <a href="http://dev.eclipse.org/newslists/news.eclipse.tools/msg32008.html" rel="noreferrer">here</a>. Bad thing about it, the post sent in year 2002:s

Is there any one of you having the same issue? Any suggestions?

Edit:

Please mark "me too" on <a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=344290" rel="noreferrer">this bug report</a> hoping that it will be fixed soon.

Really weird eclipse keyboard behavior/bug?

Windows

Eclipse

Linux

Java

我在Mac Snow Leopard上使用Helios。我不知道为什么，突然之间，我的箭头键和delete按钮开始不只在Eclipse上工作(所以Eclipse忽略了它们)，但是其余的按钮工作得很好。屏幕上的任何位置都不会抛出异常/错误。我不知道如何重现这个故障。我能说的就是，我和上的这个家伙也有同样的问题。糟糕的是，2002年的帖子:s你们中有谁有同样的问题吗？有什么建议吗？编辑：请在上标记"m

问真的很奇怪的eclipse键盘行为/bug？
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