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Difference between fprintf, printf and sprintf?
Can anyone explain in simple English about the differences between printf , fprintf , and sprintf with examples?
8 Ans...
How can I get the last 7 characters of a PHP string?
...$dynamicstring, -7);
From the php docs:
string substr ( string $string , int $start [, int $length ] )
If start is negative, the returned string will start at the start'th character from the end of string.
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Exception 'open failed: EACCES (Permission denied)' on Android
...are already in your manifest.
// Storage Permissions
private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
/**
* Checks if the app has permissi...
How to create a simple map using JavaScript/JQuery [duplicate]
...the .toString of the key Objects, when storing and retrieving the entries, convert the objects to a string which represents your understanding of uniqueness. E.g. map[toUniqueString(key1)] = 1
Sometimes, though, that is not possible. If you want to map data based on, for example File objects, ther...
What is “android:allowBackup”?
...r the application data and settings. If a user performs a factory reset or converts to a new Android-powered device, the system automatically restores your backup data when the application is re-installed. This way, your users don't need to reproduce their previous data or application settings.
~T...
How to generate random number in Bash?
...
Please see $RANDOM:
$RANDOM is an internal Bash function
(not a constant) that returns a
pseudorandom integer in the range
0 - 32767. It should not be used to
generate an encryption key.
...
How to update a value, given a key in a hashmap?
Suppose we have a HashMap<String, Integer> in Java.
17 Answers
17
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Method Overloading for null argument
...sion of a method that's available (see JLS §15.12.2).
Object, char[] and Integer can all take null as a valid value. Therefore all 3 version are applicable, so Java will have to find the most specific one.
Since Object is the super-type of char[], the array version is more specific than the Objec...
How to “crop” a rectangular image into a square with CSS?
...ikely SASS/SCSS - If you're using straight CSS, this post tells you how to convert: stackoverflow.com/questions/26760776/…
– Steve Allday
Sep 12 at 23:28
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How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]
...ermalink;. Using post.categories returns this error in console.log: "can't convert null to object".
– Cofey
May 24 '11 at 20:41
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