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How does Java handle integer underflows and overflows and how would you check for it?
...s reslulting in unexpected or undetected overflow are a common programming error. Unexpected or undetected integer overflow is also a well-known exploitable security issue, especially as it affects array, stack and list objects.
Overflow can occur in either a positive or negative direction where t...
What's the pythonic way to use getters and setters?
..._value(self, value):
if value != int(value):
raise TypeError("protected_value must be an integer")
if 0 <= value <= 100:
self._protected_value = int(value)
else:
raise ValueError("protected_value must be " +
...
How can I update NodeJS and NPM to the next versions?
...
This causes fatal error, at least for mac users see here
– dmr07
Oct 18 '15 at 22:26
...
How do I check if a type is a subtype OR the type of an object?
...rin Forms PCL project, the above solutions using IsAssignableFrom gives an error:
Error: 'Type' does not contain a definition for 'IsAssignableFrom' and
no extension method 'IsAssignableFrom' accepting a first argument of
type 'Type' could be found (are you missing a using directive or an
...
What's the reason I can't create generic array types in Java?
...;
Object[] oa = bsa;
oa[0] = new Box<Integer>(3); // error not caught by array store check
String s = bsa[0].x; // BOOM!
}
}
We had proposed to resolve this
problem using statically safe arrays
(aka Variance) bute that was rejected
for Tiger.
-- gaf...
updating table rows in postgres using subquery
...
This totally does not work in postgresql 9.5, I get ERROR: 42P01: relation "dummy" does not exist
– user9645
Oct 14 '16 at 14:37
80
...
REST API Best practices: Where to put parameters? [closed]
...tend to be easier to put in the query string.
If you want to return a 404 error when the parameter value does not correspond to an existing resource then I would tend towards a path segment parameter. e.g. /customer/232 where 232 is not a valid customer id.
If however you want to return an empty l...
WPF vs Silverlight [duplicate]
...re sending it to your plugin (i.e silverlight). If the HTTP message has an error code (for example 500), the message isn't transfered to the plugin and is discarded by the browser. But the SOAP V 1.2 specification w3.org/TR/2007/REC-soap12-part0-20070427 at the end of the 4.1.2 section say in a nuts...
What is a serialVersionUID and why should I use it?
...ionUID warnings:
Window > Preferences > Java > Compiler > Errors / Warnings > Potential Programming Problems
In case you didn't know, there are a lot of other warnings you can enable in this section (or even have some reported as errors), many are very useful:
Potential Progr...
How to get IP address of the device from code?
....
* @param str which to be converted
* @return array of NULL if error was found
*/
public static byte[] getUTF8Bytes(String str) {
try { return str.getBytes("UTF-8"); } catch (Exception ex) { return null; }
}
/**
* Load UTF8withBOM or any ansi text file.
...