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How to evaluate a math expression given in string form?
...gr = new ScriptEngineManager();
ScriptEngine engine = mgr.getEngineByNam>me m>("JavaScript");
String foo = "40+2";
System.out.println(engine.eval(foo));
}
}
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What is stack unwinding?
...d func( int x )
{
char* pleak = new char[1024]; // might be lost => m>me m>mory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtim>me m>_error( "boom" );
delete [] pleak; // will only get here if x == 0. if x!=0, throw exception
}
int main()
{
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Can You Get A Users Local LAN IP Address Via JavaScript?
...is "no" and "it can't be done" and "you shouldn't need it, you are doing som>me m>thing wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as much information as possible about you, the visi...
Vertical (rotated) label in Android
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Here is my elegant and simple vertical text implem>me m>ntation, extending TextView. This m>me m>ans that all standard styles of TextView may be used, because it is extended TextView.
public class VerticalTextView extends TextView{
final boolean topDown;
public VerticalTextVi...
In Java, is there a way to write a string literal without having to escape quotes?
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add a comm>me m>nt
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What is a sensible way to layout a Go project [closed]
I have a go project that is starting to becom>me m> more complex, and want to lay the filesystem out in such a way to reduce pain.
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Using the RUN instruction in a Dockerfile with 'source' does not work
...a Dockerfile that I am putting together to install a vanilla python environm>me m>nt (into which I will be installing an app, but at a later date).
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Download file from web in Python 3
...web server, by reading the URL that is specified in the .jad file of the sam>me m> gam>me m>/application. I'm using Python 3.2.1
8 An...
C++ obtaining milliseconds tim>me m> on Linux — clock() doesn't seem to work properly
On Windows, clock() returns the tim>me m> in milliseconds, but on this Linux box I'm working on, it rounds it to the nearest 1000 so the precision is only to the "second" level and not to the milliseconds level.
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Is optimisation level -O3 dangerous in g++?
...e of mine), that compiling with an optimisation level of -O3 in g++ is som>me m>how 'dangerous', and should be avoided in general unless proven to be necessary.
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