(Java) Compress Bytes

Demonstrates how to compress binary data.

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.

    CkFileAccess fac = new CkFileAccess();

    CkByteData fileBytes = new CkByteData();
    success = fac.ReadEntireFile("qa_data/bmp/big.bmp",fileBytes);
    if (fac.get_LastMethodSuccess() != true) {
        System.out.println(fac.lastErrorText());
        return;
        }

    CkCompression compress = new CkCompression();
    compress.put_Algorithm("deflate");

    CkByteData compressedBytes = new CkByteData();
    success = compress.CompressBytes(fileBytes,compressedBytes);
    if (compress.get_LastMethodSuccess() != true) {
        System.out.println(compress.lastErrorText());
        return;
        }

    boolean success = fac.WriteEntireFile("qa_output/compressedBmp.dat",compressedBytes);
    if (fac.get_LastMethodSuccess() != true) {
        System.out.println(fac.lastErrorText());
        return;
        }
  }
}