Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class Main {
    public static void main(String[] args) {
        String zipFileName = "ziptest.zip";
        String unzipdirectory = "extracted";
        unzip(zipFileName, unzipdirectory);
    }

    public static void unzip(String zipFileName, String unzipdir) {
        try (ZipInputStream zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(zipFileName)))) {

            ZipEntry entry = null;
            while ((entry = zis.getNextEntry()) != null) {
                // Extract teh entry's contents 
                extractEntryContent(zis, entry, unzipdir);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void extractEntryContent(ZipInputStream zis, ZipEntry entry, String unzipdir)
            throws IOException, FileNotFoundException {

        String entryFileName = entry.getName();
        String entryPath = unzipdir + File.separator + entryFileName;

        createFile(entryPath);

        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(entryPath));

        byte[] buffer = new byte[1024];
        int count = -1;
        while ((count = zis.read(buffer)) != -1) {
            bos.write(buffer, 0, count);
        }

        bos.close();
    }

    public static void createFile(String filePath) throws IOException {
        File file = new File(filePath);
        File parent = file.getParentFile();

        if (!parent.exists()) {
            parent.mkdirs();
        }
        file.createNewFile();
    }
}