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How to format strings in Java
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140
In addition to String.format, also take a look java.text.MessageFormat. The format less terse a...
Converting integer to binary in python
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>>> '{0:08b}'.format(6)
'00000110'
Just to explain the parts of the formatting string:
{} places a variable into a string
0 takes the variable at argument position 0
: adds formatting options for this variable (otherwise it wou...
How can I convert a zero-terminated byte array to string?
I need to read [100]byte to transfer a bunch of string data.
13 Answers
13
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Show a number to two decimal places
...):
return number_format((float)$number, 2, '.', '');
Example:
$foo = "105";
echo number_format((float)$foo, 2, '.', ''); // Outputs -> 105.00
This function returns a string.
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improv...
Logical XOR operator in C++?
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answered Oct 20 '09 at 19:03
Greg HewgillGreg Hewgill
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.NET JIT potential error?
...o, and running the release outside Visual Studio. I'm using Visual Studio 2008 and targeting .NET 3.5. I've also tried .NET 3.5 SP1.
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Transform DateTime into simple Date in Ruby on Rails
....to_date
NoMethodError: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> DateTime.new.to_date
=> Mon, 01 Jan -4712
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MySQL: Insert record if not exists in table
...tnames (name, address, tele)
SELECT * FROM (SELECT 'Rupert', 'Somewhere', '022') AS tmp
WHERE NOT EXISTS (
SELECT name FROM table_listnames WHERE name = 'Rupert'
) LIMIT 1;
Query OK, 1 row affected (0.00 sec)
Records: 1 Duplicates: 0 Warnings: 0
SELECT * FROM `table_listnames`;
+----+------...
Remote Connections Mysql Ubuntu
...ss
bind-address = xxx.xxx.xxx.xxx
Or add a
bind-address = 0.0.0.0 if you don't want to specify the IP
Then stop and restart MySQL with the new my.cnf entry. Once running go to the terminal and enter the following command.
lsof -i -P | grep :3306
That should come back something l...
Get local IP address in node.js
... net of nets[name]) {
// skip over non-ipv4 and internal (i.e. 127.0.0.1) addresses
if (net.family === 'IPv4' && !net.internal) {
if (!results[name]) {
results[name] = [];
}
results[name].push(net.address);
}
}
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