read every entry of a zip file

I'm trying to make a program a program that can choose a zip file and iterate through each file. For now I'm happy with either assigning a string variable as the full path to the file or assigning the file as an object. Later on I want to be able to read and rewrite the files (text files) so I don't know whats more suited.
However I cannot seem to get this working, right now Im trying to print a list of all the files.

Code:

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import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import javax.swing.JFileChooser;
public class Tester {

  public static void main(String[] args) throws IOException {

          final JFileChooser fc = new JFileChooser();
          int response = fc.showOpenDialog(null);
        String fileName;
        if(response == JFileChooser.APPROVE_OPTION) {
                fileName = fc.getSelectedFile().toString();
          }else {
                fileName = "The file open operation was cancelled";
                 
          }
    for (int i = 0; i < args.length; i++) {
      FileInputStream fin = new FileInputStream(fileName);
      ZipInputStream zin = new ZipInputStream(fin);
      ZipEntry ze = null;
      while ((ze = zin.getNextEntry()) != null) {
        System.out.println("Unzipping " + ze.getName());
        FileOutputStream fout = new FileOutputStream(ze.getName());
        for (int c = zin.read(); c != -1; c = zin.read()) {
          fout.write(c);
        }
        zin.closeEntry();
        fout.close();
      }
      zin.close();
    }
  }
}

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Any tips on how to first get this to work and then how to best work with text files within a zip file?

Edit: I just realized that the for loop didn't work. The args.length always returned zero. I set this to 10 because I know the zip files Im testing this on won't have more than a few entries. But how do I do this properly?

Quote:

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Edit: I just realized that the for loop didn't work. The args.length always returned zero. I set this to 10 because I know the zip files Im testing this on won't have more than a few entries. But how do I do this properly?

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Have you tried something like this to get the number of entries in a zip file?

Code:

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import java.util.zip.ZipFile;
          .
          .
          .
 final ZipFile file = new ZipFile(fileName);
          int numberOfEntries = file.size();
        System.out.println(numberOfEntries);
        file.close();

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