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UUID max character length
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Section 3 of RFC4122 provides the formal definition of UUID string representations. It's 36 characters (32 hex digits + 4 dashes).
Sounds like you need to figure out where the invalid 60-char IDs are coming from and decide 1) if you want to accept them, and 2) what the max length of...
Advantages to Using Private Static Methods
...c class Library
{
private static Book findBook(List<Book> books, string title)
{
// code goes here
}
}
If an instance of library's state ever gets screwed up, and I'm trying to figure out why, I can rule out findBook as the culprit, just from its signature.
I try to commu...
How to add reference to a method parameter in javadoc?
...y good to know when you refer to a generic type such as {@code Iterator<String>} -- sure looks nicer than <code>Iterator&lt;String&gt;</code>, doesn't it!
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What is the best method of handling currency/money?
...tted number ("1234.00")
product.price.format displays a properly formatted string for the currency
If you need to send cents (to a payment gateway that wants pennies), product.price.cents.to_s
Currency conversion for free
s...
(-2147483648> 0) returns true in C++?
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@RichardJ.RossIII - with clang you are probably getting a 64-bit-typed literal, since it was too big to fit in an int. OP's implementation may not have a 64-bit type.
– Carl Norum
Feb 4 '1...
install / uninstall APKs programmatically (PackageManager vs Intents)
...ion result notification.
Example code for invoking the uninstall dialog:
String app_pkg_name = "com.example.app";
int UNINSTALL_REQUEST_CODE = 1;
Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE);
intent.setData(Uri.parse("package:" + app_pkg_name));
intent.putExtra(Intent.EXTRA_RET...
What is the optimal length for an email address in a database?
...s though.
Again, since a varchar only uses the space actually used by the string you store, there is no reason to have a small limit for email address length. Just go with 512 and stop worrying. Everything else is premature optimization
...
What exactly is nullptr?
...ranteed to be 0. It can be 0L, in which case a call to void f(int); void f(char *); will be ambiguous. nullptr will always favor the pointer version, and never call the int one. Also note that nullptr is convertible to bool (the draft says that at 4.12).
– Johannes Schaub - lit...
Ignoring accented letters in string comparison
I need to compare 2 strings in C# and treat accented letters the same as non-accented letters. For example:
6 Answers
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Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
...cker's example and use Scala's case classes:
case class Person(firstName: String, lastName: String)
The above Scala class contains all features of the below Java class, and some more - for example it supports pattern matching (which Java doesn't have). Scala 2.8 adds named and default arguments, ...