(Java) Iterate over Matching Filenames

Iterates over files within a .zip that match a pattern. In this case, the pattern is "*.pem". This example will open a .zip containing files of type .txt, .cer, .pem, and possibly others, and will iterate over only the .pem files.

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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[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkZip zip = new CkZip();

    // Open a .zip containing PEM files, among other things..
    boolean success = zip.OpenZip("qa_data/certs/thawte-roots.zip");
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
        }

    CkZipEntry entry = zip.FirstMatchingEntry("*.pem");
    if (zip.get_LastMethodSuccess() != true) {
        System.out.println("No PEM entries found.");
        return;
        }

    CkZipEntry nextEntry;
    String pemStr;

    boolean bContinue = true;
    while ((bContinue == true)) {

        System.out.println("Entry: " + entry.fileName());

        // Get the uncommpressed contents of the entry:
        pemStr = entry.unzipToString(0,"utf-8");
        System.out.println(pemStr);

        nextEntry = entry.NextMatchingEntry("*.pem");
        bContinue = entry.get_LastMethodSuccess();

        entry = nextEntry;
        }
  }
}