(Java) Unzip Files in a Date Range

See more Zip Examples

Demonstrates how to use the Zip.MinDate and Zip.MaxDate properties to unzip only those files with a last-modified date within a date range.

Note: This example requires Chilkat v10.0.0 or greater.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

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

    CkZip zip = new CkZip();

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

    // The MinDate and MaxDate properties use the timestamp date/time string format.
    // Here are some examples:
    // YYYY-MM-DD (e.g., 2024-07-31)
    // YYYY-MM-DDTHH:MM:SS�HH:MM (e.g., 2024-07-31T12:34:56+02:00)
    // 2024-07-31T12:34:56Z (the "Z" denotes Zulu time, or UTC)

    // Only unzip files having a last-modified date greater than 1-Jan-2017
    zip.put_MinDate("2017-01-01T00:00:00Z");

    // Also, only unzip files having a last-modified date less than the end of 2020
    zip.put_MaxDate("2020-12-31T23:59:59Z");

    // You don't need to specify both MinDate and MaxDate.
    // You can specify only one or the other if needed.

    // The MinDate/MaxDate properties apply to all of the Chilkat methods for unzipping.

    int numUnzipped = zip.Unzip("c:/temp/unzipDir");
    if (numUnzipped < 0) {
        System.out.println(zip.lastErrorText());
        return;
        }

    zip.CloseZip();
  }
}