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java: (String[])List.toArray() gives ClassCastException
...hat type of array to create.
use
toArray(new String[v2.size()]);
which allocates the right kind of array (String[] and of the right size)
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Missing Maven dependencies in Eclipse project
We have a project set up with maven for resolving dependancies. It usually works fine, but now I am trying to compile and run it on a new PC and I have problem with missing dependencies in Eclipse.
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Printing object properties in Powershell
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Ugh! It still displays horizontally on the screen.... if any output goes outside your buffer it just puts .... I have a love hate with POSH
– Kolob Canyon
Jun 29 '17 at 22:50
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View list of all JavaScript variables in Google Chrome Console
In Firebug, the DOM tab shows a list of all your public variables and objects. In Chrome's console you have to type the name of the public variable or object you want to explore.
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Most efficient conversion of ResultSet to JSON?
...tests. You could probably make it more elegant with a HashMap lookup to a callback but I doubt it would be any faster. As to memory, this is pretty slim as is.
Somehow I doubt this code is actually a critical bottle neck for memory or performance. Do you have any real reason to try to optimize it?...
Internet Explorer's CSS rules limits
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It's actually those same two links that have me confused. The KB says "All style rules after the first 4,095 rules are not applied.", which to me implies that it is per-page, the other link says "A sheet may contain up to 4095 rules",...
Show MySQL host via SQL Command
All good and well, but is it possible to show the current connections host.
Not connection_id, but the IP Address or Name of the host.
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Mark current Line, and navigate through marked lines
... on the menus to Preferences>Key Bindings - Default this is a file with all the default key bindings. Read the whole thing! (lots of goodies) Here is a cut and paste of the bookmarks info (linux), which should be self explanatory.
{ "keys": ["f2"], "command": "next_bookmark" },
{ "keys": ["shift...
CSS: Setting width/height as Percentage minus pixels
...n use calc:
height: calc(100% - 18px);
It's worth it to note that not all browsers currently support the standard CSS3 calc() function, so implementing the browser specific versions of the function may be required like the following:
/* Firefox */
height: -moz-calc(100% - 18px);
/* WebKit */
h...
Twitter Bootstrap Form File Element Upload Button
... Browse <input type="file" hidden>
</label>
This works in all modern browsers, including IE9+. If you need support for old IE as well, please use the legacy approach shown below.
This techniques relies on the HTML5 hidden attribute. Bootstrap 4 uses the following CSS to shim this f...