Java

List Files/Directories in Zip by Index

See more Zip Examples

Demonstrates how to iterate over the files and directories in a zip archive by index. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  This example assumes the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkZip zip = new CkZip();

    success = zip.OpenZip("qa_data/zips/sample.zip");
    if (success == false) {
        System.out.println(zip.lastErrorText());
        return;
        }

    int numEntries = zip.get_NumEntries();

    CkZipEntry entry = new CkZipEntry();

    int i = 0;
    while (i < numEntries) {
        zip.EntryAt(i,entry);
        //  Note: In the ZIP file format, it is not required for a ZIP file to contain explicit directory entries. 
        //  However, explicit directory entries can be included for convenience and compatibility with certain ZIP file processing tools and software.
        //  An explicit directory entry in a ZIP file is an entry that specifically represents a directory, rather than a file. 
        //  It usually has a directory name with a trailing slash (/) and zero-length content.
        if (entry.get_IsDirectory()) {
            System.out.println(i + ": " + entry.fileName() + " (directory)");
            }
        else {
            System.out.println(i + ": " + entry.fileName());
            }

        i = i+1;
        }

    //  Sample output:

    //  0: aaa/ (directory)
    //  1: aaa/pigs.json
    //  2: bbb/ (directory)
    //  3: bbb/base64Cert.txt
    //  4: bbb/sub1/ (directory)
    //  5: bbb/sub1/brasil_cert.pem
    //  6: bbb/sub2/ (directory)
    //  7: bbb/sub2/penguins.gif
    //  8: bbb/sub2/starfish.jpg
    //  9: hamlet.xml
    //  10: hello.pdf

    zip.CloseZip();
  }
}