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Difference between HashMap, LinkedHashMap and TreeMap
... offer mostly the same functionality. The most important difference is the order in which iteration through the entries will happen:
HashMap makes absolutely no guarantees about the iteration order. It can (and will) even change completely when new elements are added.
TreeMap will iterate accordin...
How to convert a PNG image to a SVG? [closed]
...is an explanation how to do this in Inkscape: wiki.inkscape.org/wiki/index.php/Potrace
– Erel Segal-Halevi
Oct 9 '12 at 6:43
...
Make a link in the Android browser start up my app?
...any absurd pages. I've learned that to make your app browsable, change the order of the XML elements, this this:
<activity
android:name="com.example.MianActivityName"
android:label="@string/title_activity_launcher">
<intent-filter>
<action android:name="android.i...
Linking static libraries to other static libraries
...keeping track of the object files, that were added to lib1, themselves, in order to determine whether the loop can be stopped.
#! /bin/bash
lib1="$1"
lib2="$2"
if [ ! -e $lib1.backup ]; then
echo backing up
cp $lib1 $lib1.backup
fi
remove_later=""
new_tmp_file() {
file=$(mktemp)
...
Does ruby have real multithreading?
...en threads . How can I create real "OS-level" threads in my application in order to make use of multiple cpu cores for processing?
...
How to sort a Ruby Hash by number value?
... number was returning as a string, that fixed it.. I had a2 and a1 in that order because I wanted the results to sort decending.. thanks for your feedback though.
– Dustin M.
Mar 29 '10 at 22:18
...
How to run cron job every 2 hours
...into crontab :
crontab -e
write this into the file:
0 */2 * * * python/php/java yourfilepath
Example :0 */2 * * * python ec2-user/home/demo.py
and make sure you have keep one blank line after the last cron job in your crontab file
...
Why was the switch statement designed to need a break?
...getting the break where it is needed. 2) If the case statements have their order changed, the fallthrough can result in the wrong case being run. Thus, I find C#'s handling much better (explicit goto case for fallthrough, except for empty case labels).
– Daniel Rose
...
How to keep keys/values in same order as declared?
I have a dictionary that I declared in a particular order and want to keep it in that order all the time. The keys/values can't really be kept in order based on their value, I just want it in the order that I declared it.
...
Accessing Session Using ASP.NET Web API
.... Now I'm not talking about object serialization - but running them in the order received and waiting for each to complete before running the next. This is to avoid nasty thread / race conditions if two requests each try to access Session simultaneously.
Concurrent Requests and Session State
Acces...