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Equation for testing if a point is inside a circle
... x, 2) + Math.Pow(center_y - y, 2))
return D <= radius
that's in C#...convert for use in python...
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What do 3 dots next to a parameter type mean in Java?
... @OlleSöderström Another reason is that the formal parameter is converted to be an array at compile-time. That means that passing in an array yields the same result. Since an array's length is not known at compile time, the restriction to pass at least one element could be bypassed by sim...
How do you compare two version Strings in Java?
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converted on Kotlin stackoverflow.com/a/61795721/6352712
– Serg Burlaka
May 14 at 13:04
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Undefined reference to static class member
...it (1) can be used as an lvalue only if it has been defined but (2) can be converted to an rvalue without being defined?
– j_random_hacker
May 29 '09 at 10:51
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android pick images from gallery
...ll example for request permission (if need), pick image from gallery, then convert image to bitmap or file
AndroidManifesh.xml
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
Activity
class MainActivity : AppCompatActivity() {
override fun onCreate(savedIns...
CharSequence VS String in Java?
...ne such class, a concrete implementation of CharSequence.
You said:
converting from one to another
There is no converting from String.
Every String object is a CharSequence.
Every CharSequence can produce a String. Call CharSequence::toString. If the CharSequence happens to be a String, ...
How do I make my string comparison case insensitive?
...e best would be using s1.equalsIgnoreCase(s2): (see javadoc)
You can also convert them both to upper/lower case and use s1.equals(s2)
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Swift double to string
...g = double.description
update Xcode 7.1 • Swift 2.1:
Now Double is also convertible to String so you can simply use it as you wish:
let double = 1.5
let doubleString = String(double) // "1.5"
Swift 3 or later we can extend LosslessStringConvertible and make it generic
Xcode 11.3 • Swift 5.1 ...
When to use std::size_t?
...ff_t is long on 32 and 64 bit systems.
This means that you always have to convert to and from size_t whenever you interact with a std::containers, which not very beautiful. But on a going native conference the authors of c++ mentioned that designing std::vector with an unsigned size_t was a mistake...
What happens when a computer program runs?
...lso note, these aren't actual lines of C code executing. The compiler has converted them into machine language instructions in your executable. They are then (generally) copied from the TEXT area into the CPU pipeline, then into the CPU registers, and executed from there. [This was incorrect. Se...