Given a grid of any height and width, write an algorithm to traverse it in a spiral. (Starting at the top left and ending in the middle) without passing over previously visited nodes. Without using nested loops.
I need to have a buffered char stream, into which I write in one thread and from which I read in another thread. Right now I'm using PipedReader and PipedWriter for it, but those classes cause a performance problem: PipedReader does a wait(1000) when its internal buffer is empty, which causes my application to lag visibly.
Would there be some library which does the same thing as PipedReader/PipedWriter, but with better performance? Or will I have to implement my own wheels?
Hi - I need to write some junit tests on java code that calls Math.random(). I know that I can set the seed if I was instantiating my own Random object to produce repeatable results. Is there a way to do this also for Math.random() ?
I'm trying to write a simple game working with two threads, one thread to get input from the user, and another thread to animate some scenes. I'm able to get characters without pressing ENTER just fine, but it blocks in the animating thread until the user presses a key. Does anyone know of a way to get a character from the keyboard non-blocking?
for a table valued function in sql why cant we write sql statements inside begin and end tags like-
create function dbo.emptable()
returns Table
as
BEGIN --it throws an error
return (select id, name, salary from employee)
END
go
while in scalar valued function we can use these tags like
create function dbo.countemp()
returns int
as
begin
return (select count(*) from employee)
end
go
is there any specific rule where we should use BEGIN & END tags
Hi guys, any solution to this problem - given a list of numbers [1,2,3,4,5] write a Prolog program to sum up all the odd-positioned in this list ?
odd([1,2,3,4,5],Sum)
Sum = 9. (1+3+5)
I am trying to code a game following instructions contained in an OU TMA document which read:
In the constructor, write code to assign a new instance of Random to ran which you should create using the Random class's zero argument constructor
Will this code work?
Random ran = new Random(0) ;
I am a relative newbie to Java, and I don't understand exactly what the instructions mean
I'm trying to write a regular expression which specifies that text should start with a letter, every character should be a letter, number or underscore, there should not be 2 underscores in a row and it should end with a letter or number. At the moment, the only thing I have is ^[a-zA-Z]\w[a-zA-Z1-9_] but this doesn't seem to work properly since it only ever matches 3 characters, and allows repeated underscores. I also don't know how to specify requirements for the last character.
Is it possible to get Autocomplete or Something when i work with the eclipse form editor?
I write a color in the strings.xml and then i want to select it by the propertys for the text color, but there is no autocomplete or something equal
I found this piece of code:
char a = 1["ABC"];
A few quick test led me to the fact it was the same than writing:
char a = "ABC"[1];
Which seems far more logical to me. So my questions:
Why is this notation valid?
Is there any reason to write something that way?
write a scheme function that remove the first top level occurrence of a given item
from a list of items.
eg given list (a b c) item b, result list (a c)
plz help me
I want to write the regex pattern which should match the string in between also.
For example:
I have writtenthe regex pattern like this
^((?!mystring).)*$
Which means match words which doesnot contain mystring. But i want regex pattern to match like this.
mystringabcdfrevrgf
regex matcher should return
abcdfrevrgf
How will i achieve this, Please help Thanks in advance.
Answer:
((?!mystring)(.*))$
I've been learning a little of C++ and Java but my main field of interest is gaming and i would like to write code for making my own 3D Games to complement my artistic expertise
I am hoping to write a script that will allow for the detection of video on a url and provide a download link to a *flv for google chrome.
Anyone have any suggestions were to start and get a footing?
I want to write to a file without overwriting anything. It is a text file containing records. When I delete a specific record, I do not actually remove it from the file, I just put information in the header saying that it is deleted. How can I do this?
I'm using a macro and I think it works fine -
#define CStrNullLastNL(str) {char* nl=strrchr(str,'\n'); if(nl){*nl=0;}}
So it works to zero out the last newline in a string, really its used to chop off the linebreak when it gets left on by fgets.
So, I'm wondering if I can "return" a value from the macro, so it can be called like
func( CStrNullLastNL( cstr ) ) ;
Or will I have to write a function
I am able to create, write and read an SQLite Database in my Android App. I have a copy of the Database that is fully populated with data, and I want to get that data into the App's Database. Is it possible to access my pouplaed database from inside my App? Or can I at least create a copy of the populated database and then use that copy? Or do I need to do a .dump and put all the inserts into the Android code?
i can get file name via below codes. How can i send this file to remote computer. this remote computer ip: 192.168.2.105 also i can use 51124 port
class Program
{
static void Main(string[] args)
{
string[] dosyalarinYollari = System.IO.Directory.GetFiles(@"z:\20071008\1.2.392.200036.9116.2.6.1.48.1215563310.1191800303.305777\", "*.dcm", System.IO.SearchOption.AllDirectories);
foreach (string s in dosyalarinYollari)
{
Console.Write(s+"\n"); // i need to send tihs s file to remote machine
}
Console.ReadKey();
}
}
i want to write an application that sends bulk sms in java and i have a tutorial but i have to configure sms lib for me to use my modem as the port. can somehelp
How would I write a SQLite query to select all records from a specific month?
My dates are stored as Unix timestamps. PHP code is allowed in your solution if it's required. SQLite2-compatible queries only, please. :)
Hi,
Does anyone know if it is possible to encode a video using ffmpeg in reverse? (So the resulting video plays in reverse?)
I think I can by generating images for each frame (so a folder of images labelled 1.jpg, 2.jpg etc), then write a script to change the image names, and then re-encode the ivdeo from these files.
Does anyone know of a quicker way?
This is an FLV video.
Thank you
I have a table with my products and I'm trying to write a page that would pull bracelets with certain colors from the database. So here's what I have right now (in php):
$query = "SELECT * FROM products WHERE (products.colors LIKE '%black%')";
But I only want to select rows where the value for the column "category" equals "bracelet".
I've tried a few different things, but I keep getting warnings and errors. I appreciate any help you can give, thank you!