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.Deflater;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class Main {
    public static void main(String[] args) {
        String zipFileName = "ziptest.zip";
        String[] entries = new String[2];
        entries[0] = "test1.txt";
        entries[1] = "notes" + File.separator + "test2.txt";
        zip(zipFileName, entries);
    }

    public static void zip(String zipFileName, String[] zipEntries) {

        try (ZipOutputStream zos = new ZipOutputStream(
                new BufferedOutputStream(new FileOutputStream(zipFileName)))) {

            // Set the compression level to best compression
            zos.setLevel(Deflater.BEST_COMPRESSION);

            for (int i = 0; i < zipEntries.length; i++) {
                File entryFile = new File(zipEntries[i]);
                if (!entryFile.exists()) {
                    System.out.println("The entry file  " + entryFile.getAbsolutePath() + "  does  not  exist");
                    System.out.println("Aborted   processing.");
                    return;
                }
                ZipEntry ze = new ZipEntry(zipEntries[i]);
                zos.putNextEntry(ze);
                addEntryContent(zos, zipEntries[i]);
                zos.closeEntry();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void addEntryContent(ZipOutputStream zos, String entryFileName)
            throws IOException, FileNotFoundException {
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(entryFileName));

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