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How do I enable the column selection mode in Eclipse?
News wrote that Eclipse 3.5 finally supports column selection.
Unfortunately I don't know HOW to enable it. I tried pressing the ALT-key like I am used to in Visual Studio and all other Microsoft products but that had no effect.
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Nginx — static file serving confusion with root & alias
...confusions.
There is a very important difference between the root and the alias directives. This difference exists in the way the path specified in the root or the alias is processed.
In case of the root directive, full path is appended to the root including the location part, whereas in case of t...
Apply a function to every row of a matrix or a data frame
...when the second arg is 1, else by column), and the current row (or col) is always the first argument. That is how things are defined.
– Dirk Eddelbuettel
Nov 21 '10 at 4:15
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How to remove all null elements from a ArrayList or String Array?
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Try:
tourists.removeAll(Collections.singleton(null));
Read the Java API. The code will throw java.lang.UnsupportedOperationException for immutable lists (such as created with Arrays.asList); see this answer for more details.
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How to programmatically close a JFrame
...o close, the same as if the user had hit the X close button, or pressed Alt + F4 (on Windows)?
17 Answers
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Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?
...make the current directory . part of your LOAD_PATH . I have a non-trivial number of Rakefiles that assume that . is part of the LOAD_PATH , so this broke them (they reported "no such file to load" for all require statements that based off the project path). Was there a particular justificatio...
Unicode Processing in C++
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Use ICU for dealing with your data (or a similar library)
In your own data store, make sure everything is stored in the same encoding
Make sure you are always using your unicode library for mundane tasks like string length, capitalization ...
How to check if an object is an array?
... {
Array.isArray = function(obj) {
return Object.prototype.toString.call(obj) === '[object Array]';
}
};
If you use jQuery you can use jQuery.isArray(obj) or $.isArray(obj). If you use underscore you can use _.isArray(obj)
If you don't need to detect arrays created in different frames you...
How to use Jackson to deserialise an array of objects
... Jackson data binding documentation indicates that Jackson supports deserialising "Arrays of all supported types" but I can't figure out the exact syntax for this.
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How do I change the UUID of a virtual disk?
I am trying to create a new virtual machine with Oracle VirtualBox, using an already-existing hard disk. When I try to select the existing hard disk file, a .vhd file, it displays an error saying the virtual hard disk cannot be used because the UUID already exists.
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