java Gzip

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import java.io.FileInputStream;

import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZipDemo {
public static void main(String[] args) throws IOException{
  //gzipFile("D:\\administrator\\android.txt","D:\\android.gz");
  //ungzipFile("D:\\android.gz","D:\\android.txt");
  ZipDemo z1 = new ZipDemo();
  ZipDemo z2 = new ZipDemo();
  System.out.println(z1==z2);
  System.out.println(z1.getClass()==z2.getClass());
}
static void gzipFile(String source,String target) throws IOException{
  FileInputStream in = new FileInputStream(source);
  FileOutputStream out = new FileOutputStream(target);
  GZIPOutputStream gout = new GZIPOutputStream(out);

  byte b[] = new byte[1024];
  int num;
  while((num=in.read(b))!=-1){
   gout.write(b, 0, num);
  }
  gout.close();
  out.close();
  in.close();
}
static void ungzipFile(String source,String target) throws IOException{

  FileInputStream in = new FileInputStream(source);
  FileOutputStream out = new FileOutputStream(target);
  GZIPInputStream gin = new GZIPInputStream(in);
  byte b[] = new byte[1024];
  int num;
  while((num=gin.read(b))!=-1){
   out.write(b, 0, num);
  }
  out.close();
  gin.close();
  in.close();
}

}