import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
public class ZipDemo {
public static void main(String[] args) throws IOException {
File file = new File("test.zip");
if(!file.exists())
file.createNewFile();
String string="test ZIP!";
byte[] buffer =string.getBytes();
FileOutputStream fOutputStream = new FileOutputStream(file);
ZipOutputStream zoutput = new ZipOutputStream(fOutputStream);
ZipEntry zEntry = new ZipEntry("test.txt");
zoutput.putNextEntry(zEntry);
zoutput.write(buffer);
zoutput.closeEntry();
zoutput.close();
}
}