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Math.random() versus Random.nextInt(int)
...ts in its mantissa, so it is uniformly distributed in the range 0 to 1-(2^-53).
Random.nextInt(n) uses Random.next() less than twice on average- it uses it once, and if the value obtained is above the highest multiple of n below MAX_INT it tries again, otherwise is returns the value modulo n (t...
How to create an array containing 1…N
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If this is all you need, can you do this instead?
var foo = new Array(45); // create an empty array with length 45
then when you want to use it... (un-optimized, just for example)
for(var i = 0; i < foo.length; i++){
document.write('Item: ' + (i + 1) + ' of ' + foo.length + '<br/>'...
How do I pass command-line arguments to a WinForms application?
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edited May 23 '16 at 8:45
answered Jul 24 '09 at 19:02
Th...
Add unique constraint to combination of two columns
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answered Apr 3 '13 at 23:56
Aaron BertrandAaron Bertrand
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Bash Script: count unique lines in file
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edited Nov 20 '15 at 15:40
answered Apr 13 '13 at 5:04
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Detail change after Git pull
... a million on the web, for example:
The Pro Git book
Git Magic
and the 4.5 million hits on Google for "Git tutorial"
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Adding 'serial' to existing column in Postgres
...INSERT INTO foo (a, b) SELECT i, 'foo ' || i::text FROM generate_series(1, 5) i;
INSERT INTO bar (b) SELECT 'bar ' || i::text FROM generate_series(1, 5) i;
-- blocks of commands to turn foo into bar
CREATE SEQUENCE foo_a_seq;
ALTER TABLE foo ALTER COLUMN a SET DEFAULT nextval('foo_a_seq');
ALTER TA...
Python: Append item to list N times
... of a list of things to add via the above techniques):
a = [1,2,3]
b = [4,5,6]
a.extend(b)
# a is now [1,2,3,4,5,6]
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How to add icon inside EditText view in Android ?
...omarcosbeirigo
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Linq order by boolean
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Jon SkeetJon Skeet
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