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“unmappable character for encoding” warning in Java
...le called
JAVA_TOOL_OPTIONS. If you set this variable to -Dfile.encoding=UTF8,
everytime a JVM is started, it will pick up this information.
Source: http://whatiscomingtomyhead.wordpress.com/2012/01/02/get-rid-of-unmappable-character-for-encoding-cp1252-once-and-for-all/
...
How do I URL encode a string
...ng string];
const unsigned char *source = (const unsigned char *)[self UTF8String];
int sourceLen = strlen((const char *)source);
for (int i = 0; i < sourceLen; ++i) {
const unsigned char thisChar = source[i];
if (thisChar == ' '){
[output appendString:@"+"...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...的构造器，通过“策略模式”实现，算法的组合。
新建文件：org.conan.mymahout.recommendation.job.RecommendFactory.java
public final class RecommendFactory {
...
}
1). 构造数据模型
public static DataModel buildDataModel(String file) throws TasteException, ...
Removing a list of characters in string
...t;> subj.translate(dd)
u'ABC'
Full testing code and timings:
#coding=utf8
import re
def remove_chars_iter(subj, chars):
sc = set(chars)
return ''.join([c for c in subj if c not in sc])
def remove_chars_re(subj, chars):
return re.sub('[' + re.escape(''.join(chars)) + ']', '', sub...
Render basic HTML view?
...'/', (req, res) => {
fs.readFile(__dirname + '/public/index.html', 'utf8', (err, text) => {
res.send(text);
});
});
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follo...
How can I use an http proxy with node.js http.Client?
...d', () => {
console.log('DONE', Buffer.concat(chunks).toString('utf8'))
})
})
}
}).on('error', (err) => {
console.error('error', err)
}).end()
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WHERE vs HAVING
...PRIMARY KEY (`id`),
KEY `value` (`value`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
And have 10 rows with both id and value from 1 to 10:
INSERT INTO `table`(`id`, `value`) VALUES (1, 1),(2, 2),(3, 3),(4, 4),(5, 5),(6, 6),(7, 7),(8, 8),(9, 9),(10, 10);
Try the following 2 queries:
SELECT `value` v...
Parsing CSV files in C#, with header
...ult, like so: new TextFieldParser("c:\temp\test.csv", System.Text.Encoding.UTF8)
– neural5torm
Apr 19 '16 at 17:41
...
How to enable MySQL Query Log?
...gt; "SELECT 1" and argument <> ""
and argument <> "SET NAMES 'UTF8'" and argument <> "SHOW STATUS"
and command_type = "Query" and argument <> "SET PROFILING=1"
This makes it easy to see my queries that I can try and cut back. I use 8 seconds interval to only fetch quer...
File being used by another process after using File.Create()
...eam fs = File.Create(path, 1024))
{
Byte[] info = new UTF8Encoding(true).GetBytes("This is some text in the file.");
// Add some information to the file.
fs.Write(info, 0, info.Length);
}
You can use using for automatically closing the file.
...