Creating zip archive in Java

Question

I have one file created by 7zip program. I used deflate method to compress it. Now I want to create the same archive (with the same MD5sum) in java

Answer 1

package comm;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;*emphasized text*
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class Zip1 {
      public static void main( String[] args )
        {
            byte[] buffer = new byte[1024];

            try{

                File f= new  File("E:\\");
                f.mkdirs();
                File origFile= new File(f,"MyZipFile2.zip");
                FileOutputStream fos = new FileOutputStream(origFile);

                ZipOutputStream zos = new ZipOutputStream(fos);
                ZipEntry ze= new ZipEntry("test.pdf");
                zos.putNextEntry(ze);
                FileInputStream in = new FileInputStream("D:\\Test.pdf");

                int len;
                while ((len = in.read(buffer)) > 0) {
                    zos.write(buffer, 0, len);
                }

                in.close();
                zos.closeEntry();

                //remember close it
                zos.close();

                System.out.println("Done");

            }catch(IOException ex){
               ex.printStackTrace();
            }
        }
}