Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.IOException;
import java.util.Date;
import java.util.Enumeration;
import java.util.jar.Attributes;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;

public class Main {
    public static void main(String[] args) throws IOException {
        JarFile jf = new JarFile("a.jar");
        Enumeration e = jf.entries();
        while (e.hasMoreElements()) {
            JarEntry je = (JarEntry) e.nextElement();
            System.out.println(je.getName());
            long uncompressedSize = je.getSize();
            long compressedSize = je.getCompressedSize();
            long crc = je.getCrc();
            int method = je.getMethod();
            String comment = je.getComment();
            System.out.println(new Date(je.getTime()));
            System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize);
            if (method == ZipEntry.STORED) {
                System.out.println("ZipEntry.STORED");
            } else if (method == ZipEntry.DEFLATED) {
                System.out.println(ZipEntry.DEFLATED);
            }
            System.out.println("Its CRC is " + crc);
            System.out.println(comment);
            System.out.println(je.isDirectory());

            Attributes a = je.getAttributes();
            if (a != null) {
                Object[] nameValuePairs = a.entrySet().toArray();
                for (int j = 0; j < nameValuePairs.length; j++) {
                    System.out.println(nameValuePairs[j]);
                }
            }
            System.out.println();
        }
    }
}