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

...r when 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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Map implementation with duplicate keys

...ace Class1 and Class2 with the types you want to use for keys and values. Now you can put them into an array or a list and iterate over them: Pair[] pairs = new Pair[10]; ... for (Pair pair : pairs) { ... } share ...
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Android: ListView elements with multiple clickable buttons

... of an appendage @znq's answer... There are many cases where you want to know the row position for a clicked item AND you want to know which view in the row was tapped. This is going to be a lot more important in tablet UIs. You can do this with the following custom adapter: private static class...
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how to generate migration to make references polymorphic

... As far as I know, there's no built-in generator for polymorphic associations. Generate a blank migration and then modify it by hand according to your needs. Update: You'll need to specify which table you're changing. According to this S...
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jQuery convert line breaks to br (nl2br equivalent)

...dn't that regex mean if a line ends with ">" it wouldn't add the BR? I know in my HTML I use > but user generated content doesn't work so well with that... – Dave Stein Nov 8 '11 at 19:58 ...
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View's SELECT contains a subquery in the FROM clause

... Now allowed in 5.7 ! :-) – François Breton Feb 18 '16 at 14:26 4 ...
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How do I undo “Scope to this” in Visual Studio 2012?

...orer, I clicked on "Scope to this" to display only a part of the solution. Now I can't find how to get back to normal view. ...
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How to draw a rounded Rectangle on HTML Canvas?

... I needed to do the same thing and created a method to do it. // Now you can just call var ctx = document.getElementById("rounded-rect").getContext("2d"); // Draw using default border radius, // stroke it but no fill (function's default values) roundRect(ctx, 5, 5, 50, 50); // To change t...
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Is there an easy way to pickle a python function (or otherwise serialize its code)?

...eceiver side. Edit: the marshal solution looks also pretty smart, didn't know you can serialize something other thatn built-ins share | improve this answer | follow ...
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How Do I Hide wpf datagrid row selector

... for some reason, I couldn't find that anywhere. Feel a bit "doh!" now, but thank you. – Tim Almond May 19 '10 at 13:45 32 ...