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Java Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable
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You need to specify the -Djava.awt.headless=true parameter at startup time.
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What's the best way to inverse sort in scala?
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There may be the obvious way of changing the sign, if you sort by some numeric value
list.sortBy(- _.size)
More generally, sorting may be done by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
Y...
Android Studio: Javadoc is empty on hover
...return to it's tiny size quite often... I'm glad I have my docs back, even if it does mean dealing with this annoyance.
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HttpWebRequest using Basic authentication
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If you can use the WebClient class, using basic authentication becomes simple:
var client = new WebClient {Credentials = new NetworkCredential("user_name", "password")};
var response = client.DownloadString("https://telemati...
Fatal error: Maximum execution time of 30 seconds exceeded
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Your loop might be endless. If it is not, you could extend the maximum execution time like this:
ini_set('max_execution_time', 300); //300 seconds = 5 minutes
and
set_time_limit(300);
can be used to temporarily extend the time limit.
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Android Dialog: Removing title bar
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If you are using AppCompatDialog, then use: dialog.supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
– Firzen
Aug 12 '19 at 11:38
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Does Ruby have a string.startswith(“abc”) built in method?
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Your question title and your question body are different. Ruby does not have a starts_with? method. Rails, which is a Ruby framework, however, does, as sepp2k states. See his comment on his answer for the link to the documentation for it.
You could always use a regular ex...
Simulate airplane mode in iPhone Simulator
...ore easily for NSURLConnection and its kin, but it could be more confusing if some calls work and some don't.
– Rob Napier
Dec 2 '09 at 14:09
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Gradle does not find tools.jar
...ith system looking at the JRE folder i.e.
D:\Program Files\Java\jre8\bin. If we look in there, there is no Tools.jar, hence the error.
You need to find where the JDK is, in my case: D:\Program Files\Java\jdk1.8.0_11, and if you look in the lib directory, you will see Tools.jar.
What I did I crea...
App Inventor 2 颜色代码块 · App Inventor 2 中文网
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when Screen1.Initialize {
global 底色 = colorFromHex("#4CAF50")
if isDarkColor(底色) {
标签_标题.TextColor = colorFromHex("#FFFFFF")
} else {
标签_标题.TextColor = colorFromHex("#212121")
}
标签_亮度.Text = join("亮度: ", colorLuminance(底色))
}
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