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Increasing the maximum number of TCP/IP connections in Linux
...local_port_range = 32768 61000
net.ipv4.tcp_fin_timeout = 60
This basically means your system cannot consistently guarantee more than (61000 - 32768) / 60 = 470 sockets per second. If you are not happy with that, you could begin with increasing the port_range. Setting the range to 15000 61000 is...
List OrderBy Alphabetical Order
...ean an in-place sort (i.e. the list is updated):
people.Sort((x, y) => string.Compare(x.LastName, y.LastName));
If you mean a new list:
var newList = people.OrderBy(x=>x.LastName).ToList(); // ToList optional
shar...
Simple regular expression for a decimal with a precision of 2
...e digit before and one after the decimal place.
To require that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form):
^\d+(\.\d{1,2})?$
To match numbers without a leading digit before the decimal (.12) and whole numbers having a trailing p...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
...talking to customers or for display on your website. This version can be a string, like '1.0 Release Candidate'.
The AssemblyInformationalVersion is optional. If not given, the AssemblyFileVersion is used.
I use the format: major.minor[.patch] [revision as string]. This would result in:
[assembly...
How to pass an ArrayList to a varargs method parameter?
...y for no reason.)
Here's a complete example:
public static void method(String... strs) {
for (String s : strs)
System.out.println(s);
}
...
List<String> strs = new ArrayList<String>();
strs.add("hello");
strs.add("wordld");
method(strs.toArray(new String...
Java concurrency: Countdown latch vs Cyclic barrier
...erCycles {
static CyclicBarrier barrier;
public static void main(String[] args) throws InterruptedException {
barrier = new CyclicBarrier(3);
new Worker().start();
Thread.sleep(1000);
new Worker().s
What are .a and .so files?
I'm currently trying to port a C application to AIX and am getting confused. What are .a and .so files and how are they used when building/running an application?
...
How can I “pretty print” a Duration in Java?
...ix("m")
.appendSeconds()
.appendSuffix("s")
.toFormatter();
String formatted = formatter.print(duration.toPeriod());
System.out.println(formatted);
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Searching subversion history (full text)
...
strings myDump.txt | grep "turtle fwd 10"
– jedierikb
Jul 14 '12 at 2:31
2
...
Find provisioning profile in Xcode 5
...following criteria to locate the profile:
<key>Name</key>
<string>iOS Team Provisioning Profile: *</string>
you can scan the directory using awk. This one-liner will find the first file that contains the name starting with "iOS Team".
awk 'BEGIN{e=1;pat="<string>"to...