Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main {
    public static void main(String[] args) throws Exception {
        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 at " + lastModified);
                System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                        + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
            }
        }
    }
}