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Animate visibility modes, GONE and VISIBLE
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You can use the expandable list view explained in API demos to show groups
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/ExpandableList1.html.
To animate the list items motion, you will have to override the getView method and apply t...
Changing cursor to waiting in javascript/jquery
...element">Click and wait</div>
CSS: .wait {cursor:wait}
Demo here
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Do HTML WebSockets maintain an open connection for each client? Does this scale?
...n scales. If that scales, then your choice of HTTP vs WebSockets should be based on other factors: latency, deployment options, browser support, etc.
– kanaka
Aug 19 '11 at 21:28
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Nokogiri installation fails -libxml2 is missing
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EduardoEduardo
2,6441616 silver badges1717 bronze badges
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Is it safe to parse a /proc/ file?
...l-space buffer during a single read.
I tested that with a program using a 64K read buffer but it results in a kernel space buffer of 3072 bytes in my system for proc_read to return data. Multiple calls with advancing pointers are needed to get more than that much text returned. I don't know what ...
How can I check if a single character appears in a string?
...erialVersionUID = 1L;
private final long[] l = new long[1024]; // 65536 / 64 = 1024
public FastCharacterInStringChecker(final String string) {
for (final char c: string.toCharArray()) {
final int index = c >> 6;
final int value = c - (index << 6);
l[index] |...
How to securely save username/password (local)?
...me and password, use the Rfc2898DerivedBytes class (also known as Password Based Key Derivation Function 2 or PBKDF2). This is more secure than using encryption like Triple DES or AES because there is no practical way to go from the result of RFC2898DerivedBytes back to the password. You can only g...
Executing an EXE file using a PowerShell script
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Dropping Unique constraint from MySQL table
...g constraint
ALTER TABLE tab DROP CONSTRAINT unq_tab_id;
db<>fiddle demo
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Best programming based games [closed]
...ave a lot of fun coding my own robot with Robocode in college.
It is Java based, the API is detailled and it's pretty easy to get a challenging robot up and running.
Here is an example :
public class MyFirstRobot extends Robot {
public void run() {
while (true) {
ahea...