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Getting random numbers in Java [duplicate]
...0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
Another solution is using Math.random():
double random = Math.random() * 49 + 1;
or
int random = (int)(Math.random() * 50 + 1);
...
Is it valid to define functions in JSON results?
...y to fetch "further data" using JSON. It would be nice to inform a client (from the server) how to get further data, without the client worrying about which REST or so api to call next.
– Ravindranath Akila
Jun 24 '14 at 7:48
...
Unix command to find lines common in two files
I'm sure I once found a unix command which could print the common lines from two or more files, does anyone know its name? It was much simpler than diff .
...
Can promises have multiple arguments to onFulfilled?
...andard promise specification theres no clause preventing an implementation from handling this case - however its not implemented in the following libraries:
RSVP.promise (#L516-544)
Q promise (#787)
I assume the reason for them omiting multi arg resolves is to make changing order more succinct (...
What is the difference between $(command) and `command` in shell programming?
...need to be seen as deprecated, e.g. the use of waitpid() that prevents you from from seeing the full 32 bits from the exit() parameter, but all shells except the recent Bourne Shell still use waitpid() instead of the waitid() call that is now available since 26 years.
– schily
...
What does enumerate() mean?
...ts counting at 0 but if you give it a second integer argument, it'll start from that number instead:
>>> for count, elem in enumerate(elements, 42):
... print count, elem
...
42 foo
43 bar
44 baz
If you were to re-implement enumerate() in Python, here are two ways of achieving that;...
Breadth First Vs Depth First
... Container
While (there are nodes in Container)
N = Get the "next" node from Container
Store all the children of N in Container
Do some work on N
The difference between the two traversal orders lies in the choice of Container.
For depth first use a stack. (The recursive implementation ...
How to Calculate Execution Time of a Code Snippet in C++
...Time;
uint64 ret = li.QuadPart;
ret -= 116444736000000000LL; /* Convert from file time to UNIX epoch time. */
ret /= 10000; /* From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals */
return ret;
#else
/* Linux */
struct timeval tv;
gettimeofday(&tv, NULL);
uint64 ret = tv...
Rebasing a branch including all its children
...ased on top of master. Also isn't C^ not the same as B? so we are rebasing from B(excluding?) to each branch containing C on top of ... B. Wouldn't the result be exactly the same as before?
– Marenz
Jan 27 '14 at 15:57
...
NSString property: copy or retain?
...ht work for your own strings, but you never know about strings you receive from frameworks.
– Nikolai Ruhe
May 27 '10 at 12:18
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