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Are Java static calls more or less expensive than non-static calls?
...o CPU, and from JVM to JVM, so give it a try and see what you get:
import java.io.*;
class StaticVsInstanceBenchmark
{
public static void main( String[] args ) throws Exception
{
StaticVsInstanceBenchmark program = new StaticVsInstanceBenchmark();
program.run();
}
...
Converting Integer to String with comma for thousands
...
I had to add import java.text.NumberFormat;.
– Mike S
May 11 '15 at 21:09
6
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Cannot highlight all occurrences of a selected word in Eclipse
...urrences have to enabled.You can enable it by going to Preferences --> Java --> Editor --> Mark Occurrences
– Vins
Mar 13 '14 at 8:59
...
When to use nested classes and classes nested in modules?
...instantiated without being bound to an upper level class. For instance, in Java,
class Car {
class Wheel { }
}
only methods in the Car class can create Wheels.
Ruby doesn’t have that behaviour.
In Ruby,
class Car
class Wheel
end
end
differs from
class Car
end
class Wheel
end
on...
Trusting all certificates using HttpClient over HTTPS
...icate (because I'm only ever pointing to one server) but I keep getting a javax.net.ssl.SSLException: Not trusted server certificate exception.
...
Simple regular expression for a decimal with a precision of 2
...
For Java users: the decimal shouldn't be escaped.
– user1382306
Jan 26 '14 at 22:10
3
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Usage of @see in JavaDoc?
When do I use @see when dealing with JavaDocs? What is its usage?
4 Answers
4
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Is volatile expensive?
... System.exit(-1);
if (l == -2)
System.exit(-1);
}
Using Java 7's ability to print assembly code the run method looks something like:
# {method} 'run2' '()V' in 'Test2'
# [sp+0x10] (sp of caller)
0xb396ce80: mov %eax,-0x3000(%esp)
0xb396ce87: push %ebp
0xb396ce88: ...
Filter Java Stream to 1 and only 1 element
I am trying to use Java 8 Stream s to find elements in a LinkedList . I want to guarantee, however, that there is one and only one match to the filter criteria.
...
What is resource-ref in web.xml used for?
...figuration file.
So here's what happens: let's say you want to lookup the java:comp/env/jdbc/primaryDB name. The container finds that web.xml has a <resource-ref> element for jdbc/primaryDB, so it will look into the container-specific configuration, that contains something similar to the foll...