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How do you round a floating point number in Perl?
How can I round a decimal number (floating point) to the nearest integer?
13 Answers
...
Does const mean thread-safe in C++11?
...onst objects to be thread-safe. This means that the Standard Library won't introduce a data race as long as operations on const objects of your own types either
Consist entirely of reads --that is, there are no writes--; or
Internally synchronizes writes.
If this expectation does not hold for one ...
POST JSON fails with 415 Unsupported media type, Spring 3 mvc
...e culprit: In my case I had a Date object in the DTO, this Date object was converted to a String so we could show it in the view with the format: HH:mm.
When JSON information was being sent back, this Date String object had to be converted back into a full Date Object, therefore we also need a meth...
How to check type of variable in Java?
How can I check to make sure my variable is an int, array, double, etc...?
13 Answers
...
How do I calculate someone's age in Java?
I want to return an age in years as an int in a Java method.
What I have now is the following where getBirthDate() returns a Date object (with the birth date ;-)):
...
How to use WHERE IN with Doctrine 2
...ing this issue, I found something that will be important to anyone running into this same issue and looking for a solution.
From the original post, the following line of code:
$qb->add('where', $qb->expr()->in('r.winner', array('?1')));
Wrapping the named parameter as an array causes th...
Byte order mark screws up file reading in Java
...de> value.
*/
public final byte[] getBytes()
{
final int length = bytes.length;
final byte[] result = new byte[length];
// Make a defensive copy
System.arraycopy(bytes,0,result,0,length);
return result;
}
private BOM(final byte bom[], fin...
C++, What does the colon after a constructor mean? [duplicate]
...nitialise m_val based on the constructor parameter:
class Demo
{
Demo(int& val)
{
m_val = val;
}
private:
const int& m_val;
};
By the C++ specification, this is illegal. We cannot change the value of a const variable in the constructor, because it is marked as ...
Split string to equal length substrings in Java
...
Here's the regex one-liner version:
System.out.println(Arrays.toString(
"Thequickbrownfoxjumps".split("(?<=\\G.{4})")
));
\G is a zero-width assertion that matches the position where the previous match ended. If there was no previous match, it matches the beginnin...
How do I concatenate two strings in C?
...port for strings that some other languages have. A string in C is just a pointer to an array of char that is terminated by the first null character. There is no string concatenation operator in C.
Use strcat to concatenate two strings. You could use the following function to do it:
#include <st...