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How to print binary tree diagram?
...ublic class BTreePrinterTest {
private static Node<Integer> test1() {
Node<Integer> root = new Node<Integer>(2);
Node<Integer> n11 = new Node<Integer>(7);
Node<Integer> n12 = new Node<Integer>(5);
Node<Integer> n21 ...
Boolean.hashCode()
...
141
1231 and 1237 are just two (sufficiently large) arbitrary prime numbers. Any other two large p...
How to send JSON instead of a query string with $.ajax?
... the JSON object is natively available in browsers that support JavaScript 1.7 / ECMAScript 5 or later. If you need legacy support you can use json2.
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How to get the last element of an array in Ruby?
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Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1] # => 6
or Array#last method:
a.last # => 5
b.last # => 6
...
Stop caching for PHP 5.5.3 in MAMP
...u can't turn it off in the GUI like you can with the older PHP version 5.2.17. You have to manually comment out all the OPcache lines at the end of the php.ini file (MAMP/bin/php/[version]/conf/php.ini) and make sure to stop and start the servers for the changes to take effect.
I updated the URI, t...
Android AsyncTask threads limits?
...ecommissioned according to a keep-alive timeout parameter.
Before Android 1.6, the core pool size was 1 and the maximum pool size was 10. Since Android 1.6, the core pool size is 5, and the maximum pool size is 128. The size of the queue is 10 in both cases. The keep-alive timeout was 10 seconds be...
Can you 'exit' a loop in PHP?
...
213
You are looking for the break statement.
$arr = array('one', 'two', 'three', 'four', 'stop', '...
How to access the ith column of a NumPy multidimensional array?
...
>>> test[:,0]
array([1, 3, 5])
Similarly,
>>> test[1,:]
array([3, 4])
lets you access rows. This is covered in Section 1.4 (Indexing) of the NumPy reference. This is quick, at least in my experience. It's certainly much quicker ...
Using multiple let-as within a if-statement in Swift
...atitudeDouble is non-optional in here and importantThing is true
}
Swift 1.2:
Apple may have read your question, because your hoped-for code compiles properly in Swift 1.2 (in beta today):
if let latitudeDouble = latitude as? Double, longitudeDouble = longitude as? Double {
// do stuff here
...