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static const vs #define
...space {
unsigned const seconds_per_minute = 60;
};
int main (int argc; char *argv[]) {
...
}
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string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
... space besides empty string.
The term “white space” includes all characters that are not visible on
screen. For example, space, line break, tab and empty string are white
space characters*.
Reference : Here
For performance, IsNullOrWhiteSpace is not ideal but is
good. The meth...
Tree data structure in C#
... IEnumerable<T> Flatten()
{
return new[] {Value}.Concat(_children.SelectMany(x => x.Flatten()));
}
}
}
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How to convert byte array to string and vice versa?
...r UTF-8 encoding
There are a bunch of encodings you can use, look at the Charset class in the Sun javadocs.
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Is it possible to have multiple styles inside a TextView?
...way your spans via monthText + " " + month.getYearLabel(). See StringUtils.concat().
– CommonsWare
Jun 24 '16 at 10:53
2
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Accessing last x characters of a string in Bash
I found out that with ${string:0:3} one can access the first 3 characters of a string. Is there a equivalently easy method to access the last three characters?
...
Build a Basic Python Iterator
...n (defines __getitem__)
Examples:
# generator
def uc_gen(text):
for char in text.upper():
yield char
# generator expression
def uc_genexp(text):
return (char for char in text.upper())
# iterator protocol
class uc_iter():
def __init__(self, text):
self.text = text.upp...
How can I use a carriage return in a HTML tooltip?
... @Sam I don't understand what you mean by that. \x0A (byte) is the character-code that corresponds with a newline. Same for \u000A (unicode). \n is also newline.
– Halcyon
Jan 7 '15 at 14:02
...
Properties file in python (similar to Java Properties)
...most uses cases (not all):
def load_properties(filepath, sep='=', comment_char='#'):
"""
Read the file passed as parameter as a properties file.
"""
props = {}
with open(filepath, "rt") as f:
for line in f:
l = line.strip()
if l and not l.startswi...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
...(SQLException ex) {
logger.info("Could not deregister driver:".concat(ex.getMessage()));
}
// 3. For added safety, remove the reference to dataSource for GC to enjoy.
dataSource = null;
}
}
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