Hey Mendy

java.lang.IllegalArgumentException: Comparison method violates its general contract!

 I got it on a Comparator I wrote, which returned either -1 or 1 (no == check was performed , and I never returned 0) .

This will happen to you usually when switching to Java 7 from older versions of Java. 

Long story short , the solution was to add the following line to your Comparator :

if (o1 == o2) return 0;

1. download from the website

2. unzip the file

3. create a directory to store the db files C:\Users\men08j\Documents\mymongodb

4. open cmd, cd to the bin directory

$cd C:\User\men08j\Document\mongodb\bin

$mongod —dbpath “C:\Users\men08j\Documents\mymongodb”

5. Open browser

http://localhost:28017/

6.connect to the db server

run $mongo in command line

To jump to the selected URL as soon as the selection is made (i.e. without having to click a button), use the following code:

<form name="menuform">
<select name="menu2" 
onChange="top.location.href = this.form.menu2.options[this.form.menu2.selectedIndex].value;
return false;">
<option value="/index.html" selected>Home Page</option>
<option value="/internet/index.html">Internet Tutorials</option>
<option value="/internet/javascript/index.html">JavaScript Samples</option>
</select>
</form>

To make the selected URL open in a new window, use the following code:

<form name="menuform">
<select name="menu3" 
onChange="window.open(menuform.menu3.options[menuform.menu3.selectedIndex].value);
return false;">
<option value="/index.html" selected>Home Page</option>
<option value="/internet/index.html">Internet Tutorials</option>
<option value="/internet/javascript/index.html">JavaScript Samples</option>
</select>
</form>

To make the selected URL open in another frame, use the following code (where “framename” is the name of the target frame):

<form name="menuform">
<select name="menu4">
<option value="/index.html" selected>Home Page</option>
<option value="/internet/index.html">Internet Tutorials</option>
<option value="/internet/javascript/index.html">JavaScript Tutorials</option>
</select>
<input type="button" name="Submit" value="Go" 
onClick="top.framename.location.href = this.form.menu4.options[this.form.menu4.selectedIndex].value;
return false;">
</form>

FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. It includes libavcodec - the leading audio/video codec library. It can be simple called from shell.

ffmpeg has two options, ‘-ss’ (seek to position), and ‘-t’ (recording duration). Basically, you set up a stream copy, use -ss to go to the point where you want to start the segment, then use -t to set the length of the recording from that position. You’ll have to do it once for each segment you want to create.

Try the:
-vcodec copy
option to copy as well as the -ss and -t options mentioned above.

Example: ffmpeg -vcodec copy -ss 00:01:00 -t 00:03:00 -i infile.mpg outfile.mpg

the -vcodec option chooses the video codec to use, more options are:
-vcodec <string> : Force video codec.
copy : Copy raw codec data as is.
dvvideo : DV Video (for video editing, I’ve heard)
ffv1 : FFV1 lossless video codec
h264 : H.264 (best mpeg-4 codec, I’ve heard)
mpeg2video : MPEG-2 Video
rawvideo : RAW Video
xvid : XviD ( MPEG-4 Part 2 ) 

Tutorials

http://www.catonmat.net/blog/how-to-extract-audio-tracks-from-youtube-videos/

http://www.catonmat.net/blog/converting-youtube-flvs-to-a-better-format-with-ffmpeg/

$ git log

shows the previous committed version

$ git reset —hard version_number

DataObject.java

import java.util.ArrayList;

import java.util.List;

public class DataObject{

        public List<String> ids = new ArrayList<String>(){ };

}

   public DataObject JSONToObject(String jsonString){

        Gson gson = new Gson();

        //convert the json string back to object

        DataObject obj = gson.fromJson(jsonString, DataObject.class);

        return obj;

    }