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How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...
double i = Double.NaN;
The API for Double.equals() spells out the answer: "Double.NaN==Double.NaN has the value false". This is elaborated in the Java Language Specification under "Floating-Point Types, Formats, and Values":
NaN is unordered, so the numerical
comparison operat...
pinpointing “conditional jump or move depends on uninitialized value(s)” valgrind message
...
What this means is that you are trying to print out/output a value which is at least partially uninitialized. Can you narrow it down so that you know exactly what value that is? After that, trace through your code to see where it is being initialized. Chances are, you will...
How do I get the last character of a string?
...void main(String args[]) {
String string = args[0];
System.out.println("last character: " +
string.substring(string.length() - 1));
}
}
The output of java Test abcdef:
last character: f
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Polymorphism vs Overriding vs Overloading
...e extends Human{
...
@Override
public void goPee(){
System.out.println("Stand Up");
}
}
and
public class Female extends Human{
...
@Override
public void goPee(){
System.out.println("Sit Down");
}
}
Now we can tell an entire room full of Humans to go pee.
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...for a server error that the client can't really work around.
Product sold out would be a server error. The client can't modify the request in some fashion to get around the error. You could switch to another product but wouldn't that be a new request?
User maximum order limit reached is also a ...
ruby system command check exit code
...nd I want to check their exit codes simultaneously so that my script exits out if that command fails.
5 Answers
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What is the use of the square brackets [] in sql statements?
...ep 9 '08 at 21:07
Blorgbeard is outBlorgbeard is out
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How to push different local Git branches to Heroku/master
... whats the difference btween these two commands or do we have to carry out both
– Saad Masood
Sep 26 '13 at 10:13
2
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Gmail's new image caching is breaking image links in newsletter
I've got some automatic emails that are sent out upon signup completion for my site.
16 Answers
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Git branching: master vs. origin/master vs. remotes/origin/master
...ote repository and run git branch -a (to show all the branches git knows about). It will probably look something like this:
* master
remotes/origin/HEAD -> origin/master
remotes/origin/master
Here, master is a branch in the local repository. remotes/origin/master is a branch named master...