GZIPcompress.java Source code

Introduction

Here is the source code for GZIPcompress.java

Source

// : c12:GZIPcompress.java
// {Args: GZIPcompress.java}
// {Clean: test.gz}
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZIPcompress {

    // Throw exceptions to console:
    public static void main(String[] args) throws IOException {
        if (args.length == 0) {
            System.out.println("Usage: \nGZIPcompress file\n" + "\tUses GZIP compression to compress "
                    + "the file to test.gz");
            System.exit(1);
        }
        BufferedReader in = new BufferedReader(new FileReader(args[0]));
        BufferedOutputStream out = new BufferedOutputStream(new GZIPOutputStream(new FileOutputStream("test.gz")));
        System.out.println("Writing file");
        int c;
        while ((c = in.read()) != -1)
            out.write(c);
        in.close();
        out.close();
        System.out.println("Reading file");
        BufferedReader in2 = new BufferedReader(
                new InputStreamReader(new GZIPInputStream(new FileInputStream("test.gz"))));
        String s;
        while ((s = in2.readLine()) != null)
            System.out.println(s);
    }
} ///:~