import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.zip.ZipInputStream;
public class Main {
public static void main(String[] argv) throws Exception {
ZipInputStream in = new ZipInputStream(new FileInputStream("source.zip"));
OutputStream out = new FileOutputStream("target");
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
out.close();
in.close();
}
}