Thursday, 24 November 2016

Java Tutorial : Java IO (Java File - How to decompress file from GZIP file)


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Java Tutorial : Java IO (Java File - How to decompress file from GZIP file) 
Java Tutorial : Java IO (Java File - How to decompress file from GZIP file) 
GZipDemo.java
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;

public class GZipDemo
{

    public static void main(String[] args) throws IOException
    {
        String inputGzipFile = "D:/work/Helloworld.gz";
        String dstFile = "D:/work/Helloworld.java";

        GZipDemo gzipDemo = new GZipDemo();
        gzipDemo.deCompress(inputGzipFile, dstFile);
    }

    public void deCompress(String inputGzipFile, String dstFile) throws IOException
    {

        byte[] buffer = new byte[1024];

        /*
         * If the Streams are within the
         * "try-With-Resources" block, then it will be
         * closed automatically.
         */
        try (
                FileInputStream fis = new FileInputStream(inputGzipFile);
                GZIPInputStream gzis = new GZIPInputStream(fis);
                FileOutputStream out = new FileOutputStream(dstFile);)
        {

            int len;
            while ((len = gzis.read(buffer)) > 0)
            {
                out.write(buffer, 0, len);
            }

            System.out.println("Decompression is done..");

        }
    }
}
Output
Decompression is done..

Refer: 
https://docs.oracle.com/javase/8/docs/api/index.html?java/util/zip/GZIPInputStream.html

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/JavaIODemo_Gzip_decompress_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/JavaIODemo_Gzip_decompress_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/97750dcb5a5d126b3956b792a4fc850ca4dd67ca/BasicJava/JavaIODemo_Gzip_decompress_App/?at=master

See also:

  • All JavaEE Viedos Playlist
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  • All JAVA EE Links
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
  • Kids Tutorial
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