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How do I change the background color of the ActionBar of an ActionBarActivity using XML?
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Try this
ActionBar bar = getActionBar();
bar.setBackgroundDrawable(new ColorDrawable("COLOR"));
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What is the purpose of fork()?
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fork() is how you create new processes in Unix. When you call fork, you're creating a copy of your own process that has its own address space. This allows multiple tasks to run independently of one another as though they each had the full memory of...
Find the division remainder of a number
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From Python 3.7, there is a new math.remainder() function:
from math import remainder
print(remainder(26,7))
Output:
-2.0 # not 5
Note, as above, it's not the same as %.
Quoting the documentation:
math.remainder(x, y)
Return the IEEE 754-style remai...
How to download and save a file from Internet using Java?
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Give Java NIO a try:
URL website = new URL("http://www.website.com/information.asp");
ReadableByteChannel rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream("information.html");
fos.getChannel().transferFrom(rbc, 0, Lo...
Difference between “read commited” and “repeatable read”
...ition to everything repeatable read guarantees, it also guarantees that no new data can be seen by a subsequent read.
Say you have a table T with a column C with one row in it, say it has the value '1'. And consider you have a simple task like the following:
BEGIN TRANSACTION;
SELECT * FROM T;
WAI...
try {} without catch {} possible in JavaScript?
... Opera 53 and Safari 11.1.
The syntax is shown below:
try {
throw new Error("This won't show anything");
} catch { };
You still need a catch block, but it can be empty and you don't need to pass any variable. If you don't want a catch block at all, you can use the try/finally, but n...
org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
...ld F D Garcia: Thanks, it worked great. But, the program is now stopped by new one. object references an unsaved transient instance - save the transient instance before flushing Do you aware of this error. If not just leave it. I am searching.
– user405398
Sep ...
PHP Array to CSV
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Try using;
PHP_EOL
To terminate each new line in your CSV output.
I'm assuming that the text is delimiting, but isn't moving to the next row?
That's a PHP constant. It will determine the correct end of line you need.
Windows, for example, uses "\r\n". I wrack...
Is there a replacement for unistd.h for Windows (Visual C)?
...//gist.github.com/ashelly/7776712 */
#include <process.h> /* for getpid() and the exec..() family */
#include <direct.h> /* for _getcwd() and _chdir() */
#define srandom srand
#define random rand
/* Values for the second argument to access.
These may be OR'd together. */
#define R_...
CryptographicException 'Keyset does not exist', but only through WCF
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