MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.IOException;
import java.util.Date;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class MainClass {

    public static void main(String[] args) {

        try {
            ZipFile zf = new ZipFile("your.zip");
            Enumeration e = zf.entries();
            while (e.hasMoreElements()) {
                ZipEntry ze = (ZipEntry) e.nextElement();
                String name = ze.getName();

                Date lastModified = new Date(ze.getTime());
                long uncompressedSize = ze.getSize();
                long compressedSize = ze.getCompressedSize();

                int method = ze.getMethod();

                if (method == ZipEntry.STORED) {
                    System.out.println(name + " was stored at " + lastModified);
                    System.out.println("with a size of  " + uncompressedSize + " bytes");
                } else if (method == ZipEntry.DEFLATED) {
                    System.out.println(name + " was deflated at " + lastModified);
                    System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                            + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
                } else {
                    System.out.println(name + " was compressed using an unrecognized method at " + lastModified);
                    System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                            + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
                }
            }
        } catch (IOException ex) {
            System.err.println(ex);
        }
    }
}