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How can I pad an int with leading zeros when using cout
...ename.fill('0'); filename.width(5); filename<<std::to_string(i);
– Prince Patel
Feb 25 '19 at 16:14
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Unicode equivalents for \w and \b in Java regular expressions?
.... That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
3 Answers
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How to empty a list?
...explanation of del, I'd refer to the docs: docs.python.org/reference/simple_stmts.html#the-del-statement
– fortran
Sep 9 '09 at 16:28
14
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What are C++ functors and their uses?
...eate objects which "look like" a function:
// this is a functor
struct add_x {
add_x(int val) : x(val) {} // Constructor
int operator()(int y) const { return x + y; }
private:
int x;
};
// Now you can use it like this:
add_x add42(42); // create an instance of the functor class
int i = add...
How to check Oracle database for long running queries
...SQL that is currently "ACTIVE":-
select S.USERNAME, s.sid, s.osuser, t.sql_id, sql_text
from v$sqltext_with_newlines t,V$SESSION s
where t.address =s.sql_address
and t.hash_value = s.sql_hash_value
and s.status = 'ACTIVE'
and s.username <> 'SYSTEM'
order by s.sid,t.piece
/
This shows locks....
Utils to read resource text file to String (Java) [closed]
...urce("foo.txt");
String text = Resources.toString(url, StandardCharsets.UTF_8);
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How to call asynchronous method from synchronous method in C#?
... deadlock anymore.
Here is my code:
public class LogReader
{
ILogger _logger;
public LogReader(ILogger logger)
{
_logger = logger;
}
public LogEntity GetLog()
{
Task<LogEntity> task = Task.Run<LogEntity>(async () => await GetLogAsync());
...
How do I install Maven with Yum?
...apache-maven
Next add the env variables to your ~/.bashrc file
export M2_HOME=/usr/local/apache-maven
export M2=$M2_HOME/bin
export PATH=$M2:$PATH
Execute these commands
source ~/.bashrc
6:. Verify everything is working with the following command
mvn -version
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Turning off some legends in a ggplot
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You can use guide=FALSE in scale_..._...() to suppress legend.
For your example you should use scale_colour_continuous() because length is continuous variable (not discrete).
(p3 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) +
sca...
Can I list-initialize a vector of move-only type?
...he following code through my GCC 4.7 snapshot, it tries to copy the unique_ptr s into the vector.
5 Answers
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