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java.lang.UnsupportedClassVersionError: Bad version number in .class file?

...n I include an opensource library that I had to compile from source. Now, all the suggestions on the web indicate that the code was compiled in one version and executed in another version (new on old). However, I only have one version of JRE on my system. If I run the commands: ...
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Include constant in string without concatenating

... Yes it is (in some way ;) ): define('FOO', 'bar'); $test_string = sprintf('This is a %s test string', FOO); This is probably not what you were aiming for, but I think, technically this is not concatenation but a substitution and from this assumption, it includes a constant in a ...
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How to read from standard input in the console?

...lock reader := bufio.NewReader(os.Stdin) fmt.Print("Enter text: ") text, _ := reader.ReadString('\n') fmt.Println(text) As it works on my machine. However, for the next block you need a pointer to the variables you're assigning the input to. Try replacing fmt.Scanln(text2) with fmt.Scanln(&t...
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Cannot download Docker images behind a proxy

I installed Docker on my Ubuntu 13.10 (Saucy Salamander) and when I type in my console: 25 Answers ...
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What is the best way to check for Internet connectivity using .NET?

...google.com does not return some HTML :) – Daniel Vassallo Jan 9 '10 at 1:01 3 @Daniel: true on th...
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Android and XMPP: Currently available solutions [closed]

... Edited comments > hi all > I am using asmack for developing my xmpp client,I am facing a problem > When i come from 1st time login I start my chatting with user B and receiving messages from user B also that is fine.i switch off my wifi and...
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Vim: What's the difference between let and set?

...iendly interface specialized for options E.g. :verbose set to display all options in effect. :set tw=40 Will work as a shorthand for set textwidth=40 :set wrap& Will set the default value for option wrap :set nowrap Will unset the option :set wrap! Will toggle the option Most i...
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What is a good Java library to zip/unzip files? [closed]

... zipFile.setPassword(password); } zipFile.extractAll(destination); } catch (ZipException e) { e.printStackTrace(); } } The Maven dependency is: <dependency> <groupId>net.lingala.zip4j</groupId> <artifactId>zip4j</artifac...
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UIViewContentModeScaleAspectFill not clipping

... If you want to expand your knowledge there is a really good article on how the iOS UIView stack is rendered. There is also a more in-depth article about the whole drawing pipeline. In summary: Rasterisation - All the view's content is rasterised (drawn or a offscreen pix...
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PHP validation/regex for URL

...hings that jump out at me: use of alternation where character classes are called for (every alternative matches exactly one character); and the replacement shouldn't have needed the outer double-quotes (they were only needed because of the pointless /e modifier on the regex). –...