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How does Java handle integer underflows and overflows and how would you check for it?
... long or maybe java.math.BigInteger. The last one doesn't overflow, practically, the available JVM memory is the limit.
If you happen to be on Java8 already, then you can make use of the new Math#addExact() and Math#subtractExact() methods which will throw an ArithmeticException on overflow.
pub...
How do I disable the “Press ENTER or type command to continue” prompt in Vim?
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I'm not sure how to do it globally though for one command:
:silent !<command>
Be sure to include a space after silent
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How do I directly modify a Google Chrome Extension File? (.CRX)
... I found this:
The Google Chrome Extension file type is CRX. It is essentially a compression format. So if you want to see what is behind an extension, the scripts and the code, just change the file-type from “CRX” to “ZIP” .
Unzip the file and you will get all the info you need. This way ...
remove legend title in ggplot
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This will remove all legend titles. For more local control, the guide = guide_legend() command works. To remove the fill legend title, but to keep the color legend title, e.g. scale_fill_brewer(palette = "Dark2", guide = guide_legend(title = ...
What is an OS kernel ? How does it differ from an operating system? [closed]
...ernel is an operating system in that sense.
The end-user definition is usually something around "a software package that provides a desktop, shortcuts to applications, a web browser and a media player". A kernel doesn't match that definition.
So for an end-user a Linux distribution (say Ubuntu) is...
Correct approach to global logging in Golang
...d a pointer to that log.Logger?
log.New returns a *Logger which is usually an indication that you should pass the object around as a pointer. Passing it as value would create a copy of the struct (i.e. a copy of the Logger) and then multiple goroutines might write to the same io.Writer concurre...
change text of button and disable button in iOS
...antage of the fact that they are passed in as an argument to the IBAction calls:
- (IBAction) triggerActionWithSender: (id) sender;
This can be bound to the button and you’ll get the button in the sender argument when the action is triggered. If that’s not enough (because you need to access t...
How expensive is RTTI?
...where I've looked just says that "RTTI is expensive," but none of them actually give any benchmarks or quantitative data reguarding memory, processor time, or speed.
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Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
...ur browser and add it to cacerts file of your JVM. You can either edit JAVA_HOME/jre/lib/security/cacerts file or run you application with -Djavax.net.ssl.trustStore parameter. Verify which JDK/JRE you are using too as this is often a source of confusion.
See also: How are SSL certificate server na...
Can Json.NET serialize / deserialize to / from a stream?
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The current version of Json.net does not allow you to use the accepted answer code. A current alternative is:
public static object DeserializeFromStream(Stream stream)
{
var serializer = new JsonSerializer();
using (var sr = new StreamReader(stream))
u...