How to Decompress Files from GZIP File in Java

In this example we will show the method to decompress files from a GZIP file in Java.

Source Code

package com.beginner.examples;

import java.io.*;
import java.util.zip.GZIPInputStream;

public class FileOperator30Example { 
	public static void main(String[] args) throws IOException{
        
		byte[] buffer = new byte[1024];
		 
	     try
	     {
	 
	    	GZIPInputStream gzis = new GZIPInputStream(new FileInputStream("example.gz"));
	    	FileOutputStream fo = new FileOutputStream("example");
	 
			int len;
			while ((len = gzis.read(buffer)) > 0) 
			{
				fo.write(buffer, 0, len);
			}
			gzis.close();
			fo.close();
			System.out.println("Done!");
	    	
	    }
	    catch(IOException e)
	    {
	       e.printStackTrace();   
	    }
    }
}

Output:

Done!

References

Imported packages in Java documentation:

GZIPInputStream