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Why does Java switch on contiguous ints appear to run faster with added cases?
...ogram logic. Part of this code involves multiplying double variables by 10 raised to arbitrary non-negative int exponent s. One fast way (edit: but not the fastest possible, see Update 2 below) to get the multiplied value is to switch on the exponent :
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Updating MySQL primary key
...update the primary key.
alter table xx drop primary key, add primary key(k1, k2, k3);
To fix things:
create table fixit (user_2, user_1, type, timestamp, n, primary key( user_2, user_1, type) );
lock table fixit write, user_interactions u write, user_interactions write;
insert into fixit
selec...
Add comma to numbers every three digits
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What is the best way to programmatically detect porn images? [closed]
...he makers admit that their algorithmic image recogniser will drop the ball 15% of the time, then making fun of it when it does exactly that is silly.
But PORNsweeper only seems to live up to its stated specifications in one department - detection of actual porn. It's half-way decent at detecting por...
Where can I get a list of Ansible pre-defined variables?
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How to disable phone number linking in Mobile Safari?
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edited Apr 6 '18 at 0:17
Scott Hoffman
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answered Oct 22...
Inserting multiple rows in mysql
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1206
INSERT statements that use VALUES syntax can insert multiple rows. To do this, include mul...
TreeMap sort by value
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179
You can't have the TreeMap itself sort on the values, since that defies the SortedMap specific...
Handler is abstract ,cannot be instantiated
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answered Nov 9 '13 at 6:25
GlennGlenn
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XPath: select text node
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Having the following XML:
<node>Text1<subnode/>text2</node>
How d...