Example usage for java.util.zip ZipFile ZipFile

Introduction

In this page you can find the example usage for java.util.zip ZipFile ZipFile.

Prototype

public ZipFile(File file) throws ZipException, IOException

Source Link

Document

Opens a ZIP file for reading given the specified File object.

Usage

From source file:Main.java

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 {/*w  w w  .  ja  v  a2 s . c o m*/
            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) + "%");
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zf = new ZipFile("a.zip");
    Enumeration e = zf.entries();
    while (e.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) e.nextElement();
        String name = ze.getName();

        long uncompressedSize = ze.getSize();
        long compressedSize = ze.getCompressedSize();
        long crc = ze.getCrc();
        int method = ze.getMethod();
        String comment = ze.getComment();

        System.out.println(name + " was stored at " + new Date(ze.getTime()));
        if (method == ZipEntry.STORED) {
            System.out.println("with a size of  " + uncompressedSize + " bytes");
        } else if (method == ZipEntry.DEFLATED) {
            System.out.println("from " + uncompressedSize + " bytes to " + compressedSize);
        } else {/*from  ww w  . j  a va  2  s .  c  om*/
            System.out.println("from " + uncompressedSize + " bytes to " + compressedSize);
        }
        System.out.println("Its CRC is " + crc);
        if (comment != null && !comment.equals("")) {
            System.out.println(comment);
        }
        if (ze.isDirectory()) {
            System.out.println(name + " is a directory");
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zf = new ZipFile("ziptest.zip");

    Stream<? extends ZipEntry> entryStream = zf.stream();
    entryStream.forEach(entry -> {// w  ww.  jav  a2  s.  c  o  m
        try {
            // Get the input stream for the current zip entry
            InputStream is = zf.getInputStream(entry);
            System.out.println(entry.getName());
        } catch (IOException e) {
            e.printStackTrace();
        }

    });
}

From source file:MainClass.java

public static void main(String[] args) {

    try {/*from   ww w .ja v a  2s .  c  o m*/
        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();

            System.out.println(name);
            System.out.println(lastModified);
            System.out.println(uncompressedSize);
            System.out.println(compressedSize);

        }
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

From source file:MainClass.java

public static void main(String[] args) {

    try {/*from w  ww .  ja  v  a  2s  .c  om*/
        ZipFile zf = new ZipFile("your.zip");
        Enumeration e = zf.entries();
        while (e.hasMoreElements()) {
            ZipEntry ze = (ZipEntry) e.nextElement();
            String name = ze.getName();

            long crc = ze.getCrc();
            System.out.println("Its CRC is " + crc);

            String comment = ze.getComment();
            if (comment != null && !comment.equals("")) {
                System.out.println(comment);
            }
            if (ze.isDirectory()) {
                System.out.println(name + " is a directory");
            }
        }
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zip = new ZipFile(new File("sample.zip"));

    for (Enumeration e = zip.entries(); e.hasMoreElements();) {
        ZipEntry entry = (ZipEntry) e.nextElement();
        System.out.println("File name: " + entry.getName() + "; size: " + entry.getSize()
                + "; compressed size: " + entry.getCompressedSize());
        InputStream is = zip.getInputStream(entry);
        InputStreamReader isr = new InputStreamReader(is);

        char[] buffer = new char[1024];
        while (isr.read(buffer, 0, buffer.length) != -1) {
            String s = new String(buffer);
            System.out.println(s.trim());
        }/*from   ww w  .j a v  a2  s. co  m*/
    }
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    ZipFile zf = new ZipFile("a.zip");
    Enumeration e = zf.entries();
    while (e.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) e.nextElement();
        FileOutputStream fout = new FileOutputStream(ze.getName());
        InputStream in = zf.getInputStream(ze);
        for (int c = in.read(); c != -1; c = in.read()) {
            fout.write(c);/*  w  w w.  j a  va2  s. co  m*/
        }
        in.close();
        fout.close();
    }
}

From source file:MainClass.java

public static void main(String[] args) {

    try {//w  w  w  .jav  a 2s  .  co  m
        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);
    }
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    ZipFile zf = new ZipFile(args[0]);
    Enumeration e = zf.entries();
    while (e.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) e.nextElement();
        System.out.println("Unzipping " + ze.getName());
        FileOutputStream fout = new FileOutputStream(ze.getName());
        InputStream in = zf.getInputStream(ze);
        for (int c = in.read(); c != -1; c = in.read()) {
            fout.write(c);/* w ww  .ja  v  a 2s . c o  m*/
        }
        in.close();
        fout.close();
    }
}

From source file:ReadZip.java

public static void main(String args[]) {
    try {//from w  ww.java 2 s.co  m
        ZipFile zf = new ZipFile("ReadZip.zip");
        Enumeration entries = zf.entries();

        BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        while (entries.hasMoreElements()) {
            ZipEntry ze = (ZipEntry) entries.nextElement();
            System.out.println("Read " + ze.getName() + "?");
            String inputLine = input.readLine();
            if (inputLine.equalsIgnoreCase("yes")) {
                long size = ze.getSize();
                if (size > 0) {
                    System.out.println("Length is " + size);
                    BufferedReader br = new BufferedReader(new InputStreamReader(zf.getInputStream(ze)));
                    String line;
                    while ((line = br.readLine()) != null) {
                        System.out.println(line);
                    }
                    br.close();
                }
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}