大约有 44,000 项符合查询结果（耗时：0.0590秒） [XML]
Repairing Postgresql after upgrading to OSX 10.7 Lion
...
It's a PATH issue. Mac OSX Lion includes Postgresql in the system now. If you do a which psql you'll likely see usr/bin/psql instead of usr/local/bin/psql which is HomeBrew's correct one. If you run brew doctor you should get a message stating that you need to add usr/local/bin to the head ...
Bash: Strip trailing linebreak from output
... My up-vote is for the head -c ... version -- Because I can now feed commands to the clipboard and preserve formatting, but for the last \n. Eg.: alias clip="head -c -1 | xclip -selection clipboard", not too shabby. Now when you pipe ls -l | clip ... All that wonderful output goes ...
No tests found with test runner 'JUnit 4'
My Java test worked well from Eclipse. But now, when I relaunch test from the run menu, I get the following message:
41 An...
Why can't we have static method in a (non-static) inner class?
...
I know an inner class is associated with an instance of its outer class and I know that it's kinda useless that we become able to declare static members within an inner class but I am still asking why not an inner class can decl...
Where is Android Studio layout preview?
...16)
The newer Android Studio version changed the location of this button. Now if you want to see the layout design preview you will need to press one of the buttons at the top right of your xml. The button that looks like an image icon will open the design dashboard, while the button next to it wil...
Protecting executable from reverse engineering?
...ey even uses a customized USB communication protocol (outside my realm of knowledge, I'm not a device driver guy) to make it difficult to build a virtual key, or tamper with the communication between the runtime wrapper and key. Their SDK is not very developer friendly, and is quite painful to integ...
Is returning by rvalue reference more efficient?
...e following
Beta_ab
Beta::toAB() const {
return Beta_ab(1, 1);
}
Now, it's properly moving a temporary Beta_ab object into the return value of the function. If the compiler can, it will avoid the move altogether, by using RVO (return value optimization). Now, you can do the following
Beta...
Difference between “and” and && in Ruby?
...
Actually the guide now says to avoid and/or completely, and they might have a point. Often their usage in control flow could be more obviously written with if/unless operators anyway (e.g. document.save! unless document.saved?)
...
Replace String in all files in Eclipse
Do you know how can I search an replace a String in all files of my current project?
10 Answers
...
What is the relationship between Looper, Handler and MessageQueue in Android?
...
It's widely known that it's illegal to update UI components directly from threads other than main thread in android. This android document (Handling Expensive Operations in the UI Thread) suggests the steps to follow if we need to start a...