How to add src files to jar?

Question

I have built a Java application that reads data from a txt file located in the src folder. The path I have specified in the program is /src/data.txt and it works when I run it from netbeans. However when I tried to open the jar file, nothing opens. So I tried using javac from command line and this gives me the error that data.txt can't be found.

How do I make sure that the data file is included in the jar so it will work as a standalone? Thanks. EDIT1 : Here is a snippet of the code I use to load the file. And the path used is the aforementioned /scr/data.txt

public String [] openFile() throws IOException { FileReader fr = new FileReader(this.path); BufferedReader br = new BufferedReader(fr); String []text = new String[this.numberoflines]; for(int i=0;i<this.numberoflines;++i) { text[i]=br.readLine(); } br.close(); return text; }

EDIT2 : Well here is the tvf output:

 Error: Could not find or load main class jar
 C:\Users\Abhishek>jar -tvf Scrades.jar 0 Sun Jan 22 18:47:08 IST 2012 META-INF/ 199 Sun Jan 22 18:47:06 IST 2012 META-INF/MANIFEST.MF 2562 Sun Jan 22 18:47:08 IST 2012 CombinationGenerator.class 684 Sun Jan 22 18:47:08 IST 2012 Gameplay$1.class 684 Sun Jan 22 18:47:08 IST 2012 Gameplay$2.class 684 Sun Jan 22 18:47:08 IST 2012 Gameplay$3.class 684 Sun Jan 22 18:47:08 IST 2012 Gameplay$4.class 684 Sun Jan 22 18:47:08 IST 2012 Gameplay$5.class 969 Sun Jan 22 18:47:08 IST 2012 Gameplay$6.class 18279 Sun Jan 22 18:47:08 IST 2012 Gameplay.class 2275 Sun Jan 22 18:47:08 IST 2012 PermutationGenerator.class 1252444 Sun Jan 22 18:47:08 IST 2012 eng_final1.txt 3771960 Sun Jan 22 18:47:08 IST 2012 english_huge.txt 815532 Sun Jan 22 18:47:08 IST 2012 english_long.txt 16104 Sun Jan 22 18:47:08 IST 2012 english_short.txt 1506 Sun Jan 22 18:47:08 IST 2012 readFile.class

How do you load your file in code ? do you use the classpath ? url ? fullpath ? show us some code — A.B.Cade
– A.B.Cade, Commented Jan 22, 2012 at 7:18
Show us your code. And understand that file IO is not the right tool to access what is in a jar. Also understand that users of your app won't have any src folder on their machine. — JB Nizet
– JB Nizet, Commented Jan 22, 2012 at 7:19
I am using the FileReader class in order to load the file during execution. @Andrew: I am assuming you meant -xvf. Well the output generated is Error : Could not find or load main class jar. — user1163203
– user1163203, Commented Jan 22, 2012 at 8:24
"I am assuming you meant -xvf." 'An ass has just been made of you'. No, I meant what I wrote -tvf. After all, how could you copy/paste the output of the classes etc. to SO? The t option provides a listing that you can copy and paste to the site. Note that if you'd done as I specified and pasted the output, I'd now be in a position to answer your question to Mob. — Andrew Thompson
– Andrew Thompson, Commented Jan 22, 2012 at 9:00

Mob · Accepted Answer · 2012-01-22 17:23:17Z

0

You can manually inspect, place and remove the file in the jar archive using a rar extractor like winrar : Then access per using Class.getResourceAsStream(String);

 InputStream is = getClass().getResourceAsStream("/src/data.txt"); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line; while ((line = br.readLine()) != null){ //Perform operations } br.close(); isr.close(); is.close();