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Compress File in GZip Format using java

package com.pukhraj.blog;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.zip.GZIPOutputStream;

public class CompressFile {

  public static void main(String[] args) throws Exception {

    InputStream in = new FileInputStream("InputFilePath/fileName.txt");

    OutputStream out = new FileOutputStream("OutputFilePath/fileName.txt.gz");

    GZIPOutputStream gzout = new GZIPOutputStream(out);

    for (int c = in.read(); c != -1; c = in.read()) {

      gzout.write(c);

    }

    gzout.close();

  }

}