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Java 256-bit AES Password-Based Encryption
...AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, secret);
AlgorithmParameters params = cipher.getParameters();
byte[] iv = params.getParameterSpec(IvParameterSpec.class).getIV();
byte[] ciphertext = cipher.doFinal("Hello, World!".getBytes("UTF-8"));
Store the ciphertext and the iv. On decr...
How to obtain the last path segment of a URI
...hat you are looking for:
URI uri = new URI("http://example.com/foo/bar/42?param=true");
String path = uri.getPath();
String idStr = path.substring(path.lastIndexOf('/') + 1);
int id = Integer.parseInt(idStr);
alternatively
URI uri = new URI("http://example.com/foo/bar/42?param=true");
String[] s...
How to pass a class type as a function parameter
... would be T.Type, because it expresses the link between the returningClass parameter and the parameter of the closure.
In fact, using it instead of AnyClass allows the compiler to correctly infer the types in the method call:
class func invokeService<T>(service: String, withParams params: Di...
List all indexes on ElasticSearch server?
...sticsearch 6.5 either hit the /stats endpoint, or the health endpoint with param _cluster/health?level=indices
– Justin W.
Feb 23 '19 at 1:22
...
How to delete a file via PHP?
...ttps://github.com/luyadev/luya/blob/master/core/helpers/FileHelper.php
* @param string $filename The file path to the file to delete.
* @return boolean Whether the file has been removed or not.
*/
function unlinkFile ( $filename ) {
// try to force symlinks
if ( is_link ($filename) ) {
...
Uint8Array to string in Javascript
...onversion.
/**
* Converts an array buffer to a string
*
* @private
* @param {ArrayBuffer} buf The buffer to convert
* @param {Function} callback The function to call when conversion is complete
*/
function _arrayBufferToString(buf, callback) {
var bb = new Blob([new Uint8Array(buf)]);
var...
PowerShell Script to Find and Replace for all Files with a Specific Extension
...per function to replace text in a file:
function Replace-TextInFile
{
Param(
[string]$FilePath,
[string]$Pattern,
[string]$Replacement
)
[System.IO.File]::WriteAllText(
$FilePath,
([System.IO.File]::ReadAllText($FilePath) -replace $Pattern, $Repl...
How do I check OS with a preprocessor directive?
...) || !defined(__APPLE__) && defined(__MACH__)
#include <sys/param.h>
#if defined(BSD)
#define PLATFORM_NAME "bsd" // FreeBSD, NetBSD, OpenBSD, DragonFly BSD
#endif
#elif defined(__hpux)
#define PLATFORM_NAME "hp-ux" // HP-UX
#elif defined(_AIX)
#define PLATF...
Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
...ways, no promises.)
A correct analysis follows. The candidates are:
0: C(params string[]) in its normal form
1: C(params string[]) in its expanded form
2: C<string>(string)
3: C(string, object)
Candidate zero is obviously inapplicable because string is not convertible to string[]. That l...
:: (double colon) operator in Java 8
...hat accepts two ints and returns one int. This is equivalent to the formal parameters of the one and only method of interface IntBinaryOperator (the parameter of method reduce you want to call). So the compiler does the rest for you - it just assumes you want to implement IntBinaryOperator.
But as ...