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How to find/remove unused dependencies in Gradle
... related files.
This plugin has various rules. Unused Dependency Rule is one of them. It has three specific characteristics.
Removes unused dependencies.
Promotes transitive dependencies that are used directly by your code
to explicit first order dependencies.
Relocates dependencies to the 'corr...
How to read a single character from the user?
Is there a way of reading one single character from the user input? For instance, they press one key at the terminal and it is returned (sort of like getch() ). I know there's a function in Windows for it, but I'd like something that is cross-platform.
...
How can I export the schema of a database in PostgreSQL?
...r schema include patterns to
match at least one entity each
--use-set-session-authorization
use SET SESSION AUTHORIZATION commands instead of
ALTER OWNER commands to set ownership
Connection options:
-d...
Modify request parameter with servlet filter
...me from the client, and modifying the parameter would not represent that.
One solution is to use the HttpServletRequestWrapper class, which allows you to wrap one request with another. You can subclass that, and override the getParameter method to return your sanitized value. You can then pass that...
How do you determine the ideal buffer size when using FileInputStream?
... generally larger than (or equal to) the disk block size. This means that one of your stream reads could result in multiple disk block reads - but those reads will always use a full block - no wasted reads.
Now, this is offset quite a bit in a typical streaming scenario because the block that is r...
How do I sort an NSMutableArray with custom objects in it?
...rtDescriptor]];
You can easily sort by multiple keys by adding more than one to the array. Using custom comparator-methods is possible as well. Have a look at the documentation.
Blocks (shiny!)
There's also the possibility of sorting with a block since Mac OS X 10.6 and iOS 4:
NSArray *sortedAr...
Why does volatile exist?
...rdware managed 16 bit value as a semaphore to know when the other guy was done. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the opt...
How to replace multiple substrings of a string?
...m with "|"). why isn’t that overengineered? because this way we do it in one pass (=fast), and we do all the replacements at the same time, avoiding clashes like "spamham sha".replace("spam", "eggs").replace("sha","md5") being "eggmd5m md5" instead of "eggsham md5"
– flying s...
How to use Single TextWatcher for multiple EditTexts?
.... Then, in the method implementation, just switch on the view to see which one the Editable is coming from
Declaration:
private class GenericTextWatcher implements TextWatcher{
private View view;
private GenericTextWatcher(View view) {
this.view = view;
}
public void befo...
Submit form on pressing Enter with AngularJS
...
If you only have one input you can use the form tag.
<form ng-submit="myFunc()" ...>
If you have more than one input, or don't want to use the form tag, or want to attach the enter-key functionality to a specific field, you can inlin...