How can I list all files in a subdirectory in a jar

Question

Hello.
I have wrote a program which lists all class files in given directory.
I used Class.getResource(""), and File.list().
Now I turned the program into single jar file.
It never works.
I know the reason but do not know how to fix the problem.
What can I do?
Thank you in advance.

Answer 1

If you are trying to list the files of jar file from java code you can use this code.
Try with the below code
=============================================
try {
// Open the JAR file
JarFile jarfile = new JarFile("filename.jar");
// Get the manifest
Manifest manifest = jarfile.getManifest();
// Get the manifest entries
Map map = manifest.getEntries();
// Enumerate each entry
for (Iterator it=map.keySet().iterator(); it.hasNext(); ) {
// Get entry name
String entryName = (String)it.next();
// Get all attributes for the entry
Attributes attrs = (Attributes)map.get(entryName);
// Enumerate each attribute
for (Iterator it2=attrs.keySet().iterator(); it2.hasNext(); ) {
// Get attribute name
Attributes.Name attrName = (Attributes.Name)it2.next();
// Get attribute value
String attrValue = attrs.getValue(attrName);
} catch (IOException e) {
=================================================
use import java.util.*;
and import java.io.*;