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Scala type programming resources
...version from A to a subtype of B)
an example
more comparison operators
Converting between types and values
In many of the examples, types defined via traits are often both abstract and sealed, and therefore can neither be instantiated directly nor via anonymous subclass. So it is common to use...
What is the difference between Integer and int in Java?
...int is a primitive data type while Integer is a Helper class, it is use to convert for one data type to other.
For example:
double doubleValue = 156.5d;
Double doubleObject = new Double(doubleValue);
Byte myByteValue = doubleObject.byteValue ();
String myString...
How to split() a delimited string to a List
...
string.Split() returns an array - you can convert it to a list using ToList():
listStrLineElements = line.Split(',').ToList();
Note that you need to import System.Linq to access the .ToList() function.
...
How to calculate the bounding box for a given lat/lng location?
...2deg(lonMin), rad2deg(latMax), rad2deg(lonMax))
EDIT: The following code converts (degrees, primes, seconds) to degrees + fractions of a degree, and vice versa (not tested):
def dps2deg(degrees, primes, seconds):
return degrees + primes/60.0 + seconds/3600.0
def deg2dps(degrees):
intdeg ...
Checking if a string can be converted to float in Python
I've got some Python code that runs through a list of strings and converts them to integers or floating point numbers if possible. Doing this for integers is pretty easy
...
Cast from VARCHAR to INT - MySQL
...r i found some times ending up with a float64 that why i will prefer using CONVERT('123456',UNSIGNED INTEGER)
– Isaac Weingarten
Jun 23 at 21:06
add a comment
...
How to get city name from latitude and longitude coordinates in Google Maps?
...g_tag", "Error in http connection " + e.toString());
}
// convert response to string
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
...
Converting a list to a set changes element order
Recently I noticed that when I am converting a list to set the order of elements is changed and is sorted by character.
...
What does %s mean in a python format string?
... for 3.6 it works the same even if you use %s on integers, it will just be converted into a string.
– lapin
Mar 21 at 1:15
...
Callback functions in C++
...nter to member function since different types can be passed and implicitly converted into a std::function object.
3.3.1 Function pointers and pointers to member functions
A function pointer
int a = 2;
int b = stdf_foobar(a, &foo);
// b == 6 ( 2 + (2+2) )
or a pointer to member function
int...