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How to simplify a null-safe compareTo() implementation?
...od for a simple class such as this (to be able to use Collections.sort() and other goodies offered by the Java platform):
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How do I access call log for android?
... of Jellybean (4.1) you need the following permission:
<uses-permission android:name="android.permission.READ_CALL_LOG" />
Code:
Uri allCalls = Uri.parse("content://call_log/calls");
Cursor c = managedQuery(allCalls, null, null, null, null);
String num= c.getString(c.getColumnIndex(CallLo...
Where in memory are my variables stored in C?
...sidering that the memory is divided into four segments: data, heap, stack, and code, where do global variables, static variables, constant data types, local variables (defined and declared in functions), variables (in main function), pointers, and dynamically allocated space (using malloc and calloc...
Batch Renaming of Files in a Directory
...his:
rename(r'c:\temp\xx', r'*.doc', r'new(%s)')
The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension).
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Getting multiple keys of specified value of a generic Dictionary?
...tionary? Not that it is important or anything, just curious to if I understand things correctly here...
– Svish
Aug 4 '09 at 14:14
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Using an integer as a key in an associative array in JavaScript
... saying. However, note that you can not have integer keys. JavaScript will convert the integer to a string. The following outputs 20, not undefined:
var test = {}
test[2300] = 20;
console.log(test["2300"]);
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Unix command to prepend text to a file
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This solution has problems ... it converts occurrences of "\n" to actual new lines ... problematic if you're prepending to a code file with strings that contain "\n".
– Paul Go
Mar 17 '16 at 15:16
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What's wrong with overridable method calls in constructors?
...When the @Override is invoked, the state of the object may be inconsistent and/or incomplete.
A quote from Effective Java 2nd Edition, Item 17: Design and document for inheritance, or else prohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors m...
Remove Fragment Page from ViewPager in Android
I'm trying to dynamically add and remove Fragments from a ViewPager, adding works without any problems, but removing doesn't work as expected.
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Difference between Mutable objects and Immutable objects [duplicate]
Any one please give the diff between Mutable objects and Immutable objects with example.
5 Answers
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