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Determine the number of lines within a text file
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Small note: because String is a reference type the array would be the size of the number of lines x the size of a pointer, but you're correct that it still needs to store the text, each line as a single String object.
– Mik...
How does database indexing work? [closed]
...iven that creating an index requires additional disk space (277,778 blocks extra from the above example, a ~28% increase), and that too many indices can cause issues arising from the file systems size limits, careful thought must be used to select the correct fields to index.
Since indices are only...
What are the downsides to using Dependency Injection? [closed]
... I probably want to switch from std::cout to std::wcout. But that means my strings then have to be of wchar_t, not of char. Either every caller has to be changed, or (more reasonably), the old implementation gets replaced with an adaptor that translates the string and calls the new implementation.
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Insert text with single quotes in PostgreSQL
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String literals
Escaping single quotes ' by doubling them up -> '' is the standard way and works of course:
'user's log' -- incorrect syntax (unbalanced quote)
'user''s log'
In old versions or if you still run with ...
Can I multiply strings in Java to repeat sequences? [duplicate]
...st way in plain Java with no dependencies is the following one-liner:
new String(new char[generation]).replace("\0", "-")
Replace generation with number of repetitions, and the "-" with the string (or char) you want repeated.
All this does is create an empty string containing n number of 0x00 ch...
How to check if AlarmManager already has an alarm set?
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Does it have to use the Intent with just an Action String? I tried specifying a class, new Intent(context, MyClass.class) but it doesn't seem to work. It always returns null even when the alarm is running.
– toc777
Apr 4 '12 at 8:39
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...s.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <linux/serial.h>
#include <iostream>
#include <list>
using namespace std;
static string get_driver(co...
Getting the name of a variable as a string
This thread discusses how to get the name of a function as a string in Python:
How to get a function name as a string?
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vs vs for inline and block code snippets
...dd the class. Doing it any other way will still be asking the user to type extra. This way the user can think of it as adding a special tag rather than using a completely different structure.
– slebetman
Jan 9 '11 at 0:19
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unsigned int vs. size_t
...ead of int / unsigned int pretty much everywhere - from parameters for C string functions to the STL. I am curious as to the reason for this and the benefits it brings.
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