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Unix command to find lines common in two files
... a unix command which could print the common lines from two or more files, does anyone know its name? It was much simpler than diff .
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custom listview adapter getView method being called multiple times, and in no coherent order
...tView() will be called nor how many times. In your particular case you are doing the worst thing possible with a ListView by giving it a height=wrap_content. This forces ListView to measure a few children out of the adapter at layout time, to know how big it should be. This is what provides ListView...
How to use enum values in f:selectItem(s)
I want to make a selectOneMenu dropdown so I can select a status on my question. Is it possible to make the f:selectItem more flexible considering what happens if the order of the enums changes, and if the list was large? And could I do this better? And is it possible to automatically "select" the i...
How to generate random SHA1 hash to use as ID in node.js?
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Have a look here: How do I use node.js Crypto to create a HMAC-SHA1 hash?
I'd create a hash of the current timestamp + a random number to ensure hash uniqueness:
var current_date = (new Date()).valueOf().toString();
var random = Math.random().toS...
How can I check if multiplying two numbers in Java will cause an overflow?
...n, n > x is the same as n > floor(x). For positive integers division does an implicit floor. (For negative numbers it rounds up instead)
– Thomas Ahle
May 5 '15 at 22:44
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ssh: connect to host github.com port 22: Connection timed out
... push into git all of a sudden.
I have set the RSA key and the proxy and double checked them, with no avail and git is throwing me the error shown in the title of the page.
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What is the best way to test for an empty string in Go?
Which method is best (more idomatic) for testing non-empty strings (in Go)?
10 Answers
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Django South - table already exists
... edited Oct 16 '10 at 12:12
AndiDog
59.3k1616 gold badges145145 silver badges195195 bronze badges
answered Jun 22 '10 at 6:47
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How to extract text from a PDF? [closed]
...ed to be able to get at text that is contained in pre-known regions of the document, so the API will need to give us positional information of each element on the page.
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Why is lazy evaluation useful?
... anyone explain to me in a way that makes sense; mostly it ends up boiling down to "trust me".
22 Answers
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