COMPRESS A FILE INTO .gz FILE ~ COMPLETE JAVA CODE

Hello friends,

In this post I’m presenting a java code to compress a file into -.gz format.
Hope this will be useful to you..!!!

Algorithm

1.      1.Input the name of the file to be zipped.
2.      Create an OutputStream in the name of given _file.gz.
3.      Point it to the GZIPOutputStream.
4.       Read from the file to be zipped, bytewise, and write it into GZIPOutputStream.

import java.io.*;

import java.util.zip.*;

public class CompressFile {

public static void compresser(String temp) {

try {

File file = new File(temp);

FileOutputStream fout = new FileOutputStream(file + ".gz");

GZIPOutputStream gout = new GZIPOutputStream(fout);

FileInputStream fin = new FileInputStream(file);

BufferedInputStream in = new BufferedInputStream(fin);

byte[] buffer = new byte[1024];

int i;

while ((i = in.read(buffer)) >= 0) {

gout.write(buffer, 0, i);

}

System.out.println(" successfully compressed");

in.close();

gout.close();

}

catch (IOException e) {

System.out.println("Exception is" + e);

}

}

public static void main(String args[]) {

if (args.length != 1) {

System.out.println("Please enter the file name which needs to be compressed ");

} else {

compresser(args[0]);

}

}

}

For compiling::

javac CompressFile.java

For running::

java CompressFile any_file_name_present_in_current_directory

Posted in: JAVA , New Tricks