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What does MVW stand for?
...as the point is to understand the concepts from the terms, but by the same token, fully understanding the terms helps one when they are designing their application code, knowing what goes where and why.
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Running Command Line in Java [duplicate]
...tter than Runtime.getRuntime().exec(). This is for a couple of reasons: it tokenizes better the arguments, and it also takes care of the error standard output (check also here).
ProcessBuilder builder = new ProcessBuilder("cmd", "arg1", ...);
builder.redirectErrorStream(true);
final Process process...
How can I remove duplicate rows?
...erver LEFT JOIN is less efficient than NOT EXISTS sqlinthewild.co.za/index.php/2010/03/23/… The same site also compares NOT IN vs NOT EXISTS. sqlinthewild.co.za/index.php/2010/02/18/not-exists-vs-not-in Out of the 3 I think NOT EXISTS performs best. All three will generate a plan with a self join ...
Safely turning a JSON string into an object
...ill see an error thrown in the console with the dreaded "Error: unexpected token 'x'".
var data;
try {
data = JSON.parse(jqxhr.responseText);
} catch (_error) {}
data || (data = {
message: 'Server error, please retry'
});
...
Android Center text on canvas
...Bounds(Rect) instead. (Do not use Canvas.getClipBounds().getHeight() as it allocates memory for a Rect.)
For reasons of performance, you should allocate objects before they are used in onDraw(). As drawCenter() will be called within onDraw() the object Rect r is preallocated as a field here.
I ...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件尾后，即文件原先的内容会被保留。
导航：
一、PHP
二、C#
三、C
3.1、fgets、fputs文本读写
3.2、fread、fwrite二进制读写
四、C++
五、Java
PHP读写文件：
// 写文件
$fp = fopen("log.txt", "a");
fwrite($fp, $str);
fclose(...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...ws IOException {
for (int i = 0; i < bucket.length; i++) { // allocate buckets
bucket[i] = new Bucket();
}
for(int i=0; i< NUM_COUNT; i++) { // produce some data
int value = p.produce();
int bucketId = value/BUCKET_RANGE;
...
string sanitizer for filename
I'm looking for a php function that will sanitize a string and make it ready to use for a filename. Anyone know of a handy one?
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What is SQL injection? [duplicate]
...ta or even changing data that they shouldn't be allowed to do.
Example in PHP:
$password = $_POST['password'];
$id = $_POST['id'];
$sql = "UPDATE Accounts SET PASSWORD = '$password' WHERE account_id = $id";
Now suppose the attacker sets the POST request parameters to "password=xyzzy" and "id=acc...
How does this giant regex work?
...ently found the code below in one of my directories, in a file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories.
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