Often, file sizes are too big to back them up or share them with someone. You can create a compressed version that will save you disk space, transfer time, etc.
Java provides you with a zip package that can be handy here:
import java.util.zip.GZIPOutputStream;import java.io.*;public class CreateGZIP{ public static void main(String args[]) { CreateGZIP createGZIP = new CreateGZIP(); createGZIP.proceed(); } private void proceed(){ String fileToBeCompressed = "/home/mypc/CreateGZIP.java"; String compressedFileName = "/home/mypc/CompressedFile.gz"; byte[] buffer = new byte[1024]; int bufferLength; try{ //Creating the needed streams for the input and output FileInputStream fileInputStream = new FileInputStream(fileToBeCompressed); FileOutputStream fileOutputStream = new FileOutputStream(compressedFileName); GZIPOutputStream gZIPOutputStream = new GZIPOutputStream(fileOutputStream); while((bufferLength = fileInputStream.read(buffer)) != -1){ gZIPOutputStream.write(buffer, 0, bufferLength); } //Closing all the streams used fileInputStream.close(); //fileOutputStream.close(); gZIPOutputStream.finish(); gZIPOutputStream.close(); System.out.println("File " + fileToBeCompressed + " is compressed as " + compressedFileName); } catch(IOException ioe){ System.out.println("IOException: " + ioe); } }}/*
Expected output:
[root@mypc]# java CreateGZIPFile /home/mypc/CreateGZIP.java is compressed as /home/mypc/CompressedFile.gz*/