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Why use Ruby's attr_accessor, attr_reader and attr_writer?
...write classes which will work correctly no matter how their public API is called.
class Person
attr_accessor :age
...
end
Here, I can see that I may both read and write the age.
class Person
attr_reader :age
...
end
Here, I can see that I may only read the age. Imagine that it is set ...
How to get RGB values from UIColor?
...rView.backgroundColor;//line 2
CGColorRef colorRef = [color CGColor];
int _countComponents = CGColorGetNumberOfComponents(colorRef);
if (_countComponents == 4) {
const CGFloat *_components = CGColorGetComponents(colorRef);
CGFloat red = _components[0];
CGFloat green = _components[1...
How to print out more than 20 items (documents) in MongoDB's shell?
...
From the shell if you want to show all results you could do db.collection.find().toArray() to get all results without it.
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When does a process get SIGABRT (signal 6)?
...ue to an input in an array at an index equal to the length of the array.
string x[5];
for(int i=1; i<=5; i++){
cin>>x[i];
}
x[5] is being accessed which is not present.
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Java 8 Streams: multiple filters vs. complex condition
....currentTimeMillis();
return time2 - time1;
}
public static void main(String... args) {
int size = 10000000;
List<User> users =
IntStream.range(0,size)
.mapToObj(i -> i % 2 == 0 ? new User(Gender.MALE, i % 100) : new User(Gender.FEMALE, i % 100))
.co...
Remove all whitespace in a string
I want to eliminate all the whitespace from a string, on both ends, and in between words.
10 Answers
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Concat all strings inside a List using LINQ
Is there any easy LINQ expression to concatenate my entire List<string> collection items to a single string with a delimiter character?
...
Recursive lambda functions in C++11
... in MSVC, where I have experience with them), it's just that they aren't really compatible with type inference.
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Java 8 forEach with index [duplicate]
... way to build a forEach method in Java 8 that iterates with an index? Ideally I'd like something like this:
3 Answers
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Where in an Eclipse workspace is the list of projects stored?
...e.resources/.projects/
Your project can exist outside the workspace, but all Eclipse-specific metadata are stored in that org.eclipse.core.resources\.projects directory
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