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Create a List of primitive int?
... Integer class which is a wrapper for int:
List<Integer> list = new ArrayList<Integer>();
If your using Java 7 you can simplify this declaration using the diamond operator:
List<Integer> list = new ArrayList<>();
With autoboxing in Java the primitive type int will becom...
How to create byte array from HttpPostedFile
... FromBinary method. Wondering how do I convert my input stream into a byte array
6 Answers
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Using $_POST to get select option value from HTML
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You can access values in the $_POST array by their key. $_POST is an associative array, so to access taskOption you would use $_POST['taskOption'];.
Make sure to check if it exists in the $_POST array before proceeding though.
<form method="post" action="p...
How to iterate through SparseArray?
Is there a way to iterate over Java SparseArray (for Android) ? I used sparsearray to easily get values by index. I could not find one.
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What are the differences between ArrayList and Vector?
What are the differences between the two data structures ArrayList and Vector , and where should you use each of them?
7...
How can I trim all strings in an Array? [duplicate]
If I have this array:
2 Answers
2
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How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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Split a String into an array in Swift?
.../ 2017
Xcode 8.1 / Swift 3.0.1
Here is the way multiple delimiters with array.
import Foundation
let mathString: String = "12-37*2/5"
let numbers = mathString.components(separatedBy: ["-", "*", "/"])
print(numbers)
Output:
["12", "37", "2", "5"]
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Test for existence of nested JavaScript object key
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function checkNested(obj /*, level1, level2, ... levelN*/) {
var args = Array.prototype.slice.call(arguments, 1);
for (var i = 0; i < args.length; i++) {
if (!obj || !obj.hasOwnProperty(args[i])) {
return false;
}
obj = obj[args[i]];
}
return true;
}
var test = {level...
Compare two Byte Arrays? (Java)
I have a byte array with a ~known binary sequence in it. I need to confirm that the binary sequence is what it's supposed to be. I have tried .equals in addition to == , but neither worked.
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