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Using the Swift if let with logical AND operator &&
...tln("success!")
}
For those now using Swift 3, "where" has been replaced by a comma. The equivalent would therefore be:
if let w = width as? Int, w < 500
{
println("success!")
}
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i...
How can I use external JARs in an Android project?
...ch will create a folder called 'Referenced Libraries' within your
project
By doing this, you will not
lose your libraries that are being referenced on your
hard drive whenever you transfer your project to another computer.
For Android Studio
If you are in Android View in project explorer, chang...
Generate a random number in the range 1 - 10
...
If by numbers between 1 and 10 you mean any float that is >= 1 and < 10, then it's easy:
select random() * 9 + 1
This can be easily tested with:
# select min(i), max(i) from (
select random() * 9 + 1 as i from gene...
Generic method multiple (OR) type constraint
...d it was possible to allow a method to accept parameters of multiple types by making it a generic method. In the example, the following code is used with a type constraint to ensure "U" is an IEnumerable<T> .
...
Converting VS2012 Solution to VS2010
...re is no backward compatibility though.
– Stephen Murby
Apr 27 '13 at 10:03
1
I just fell into th...
How to split data into training/testing sets using sample function
...
It can be easily done by:
set.seed(101) # Set Seed so that same sample can be reproduced in future also
# Now Selecting 75% of data as sample from total 'n' rows of the data
sample <- sample.int(n = nrow(data), size = floor(.75*nrow(data)), ...
Should I use a class or dictionary?
...ss oriented for a reason: we deal with objects. An object is characterized by 2 (3) properties: 1. state (members) 2. behavior (methods) and 3. instance can be described in several words. Therefore classes are for bundling together state and behavior.
– friendzis
...
Measuring execution time of a function in C++
...function. This is because the CPU of your machine can be less or more used by other processes running on your computer, just as your mind can be more or less concentrated when you solve a math exercise. In the human mind, we can remember the solution of a math problem, but for a computer the same pr...
Difference between a Structure and a Union
..., technically speaking it's undefined. On most modern machines a char is 1 byte and an int is 4 bytes, so giving x.b the value 'c' also gives the first byte of x.a that same value:
union foo x;
x.a = 3;
x.b = 'c';
printf("%i, %i\n", x.a, x.b);
prints
99, 99
Why are the two values the same? Bec...
How to get RelativeLayout working with merge and include?
I have been trying for a few days now to make my layouts more efficient by converting from using several levels of nested LinearLayouts to one RelativeLayout and have come across a few problems that I haven not been able to find a workaround for...
...