Example usage for java.util Enumeration nextElement

Introduction

In this page you can find the example usage for java.util Enumeration nextElement.

Prototype

E nextElement();

Source Link

Document

Returns the next element of this enumeration if this enumeration object has at least one more element to provide.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileInputStream is = new FileInputStream("your.keystore");

    KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
    keystore.load(is, "my-keystore-password".toCharArray());

    Enumeration e = keystore.aliases();
    for (; e.hasMoreElements();) {
        String alias = (String) e.nextElement();

        java.security.cert.Certificate cert = keystore.getCertificate(alias);
        if (cert instanceof X509Certificate) {
            X509Certificate x509cert = (X509Certificate) cert;

            // Get subject
            Principal principal = x509cert.getSubjectDN();
            String subjectDn = principal.getName();

            // Get issuer
            principal = x509cert.getIssuerDN();
            String issuerDn = principal.getName();
        }/*from w  w  w  .  ja  v  a 2s  .c om*/
    }
}

From source file:Main.java

static public void main(String args[]) throws Exception {
    int port = 80;

    NetworkInterface ni = NetworkInterface.getByName("name");
    Enumeration e = ni.getInetAddresses();
    if (!e.hasMoreElements())
        return;//from   w  w  w . ja  v  a  2s .  c  o  m
    InetAddress ia = (InetAddress) e.nextElement();

    ServerSocket ss = new ServerSocket(port, 20, ia);
    System.out.println("Listening");
    Socket s = ss.accept();
    System.out.println(s);
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {

    JarFile jf = new JarFile(args[0]);
    Enumeration e = jf.entries();
    while (e.hasMoreElements()) {
        JarEntry je = (JarEntry) e.nextElement();
        String name = je.getName();
        Date lastModified = new Date(je.getTime());
        long uncompressedSize = je.getSize();
        long compressedSize = je.getCompressedSize();

        int method = je.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 {/*from  w  w  w . j av a 2  s .c o  m*/
            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) + "%");
        }
    }
}

From source file:Main.java

public static void main(String[] argv) {
    DefaultTableModel model = new DefaultTableModel() {
        public Class getColumnClass(int columnIndex) {
            Object o = getValueAt(0, columnIndex);
            if (o == null) {
                return Object.class;
            } else {
                return o.getClass();
            }/*from  w ww.  ja va2s .c om*/
        }
    };
    JTable table = new JTable(model);

    model.addColumn("Boolean", new Object[] { Boolean.TRUE });
    model.addColumn("Date", new Object[] { new Date() });
    model.addColumn("Double", new Object[] { new Double(Math.PI) });
    model.addColumn("Float", new Object[] { new Float(1.2) });
    model.addColumn("Icon", new Object[] { new ImageIcon("icon.gif") });
    model.addColumn("Number", new Object[] { new Integer(1) });
    model.addColumn("Object", new Object[] { "object" });

    Enumeration e = table.getColumnModel().getColumns();
    TableColumn col = (TableColumn) e.nextElement();

    col.setCellRenderer(table.getDefaultRenderer(Boolean.class));
    col.setCellEditor(table.getDefaultEditor(Boolean.class));

    JFrame f = new JFrame();
    f.setSize(300, 300);
    f.add(new JScrollPane(table));
    f.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
    while (e.hasMoreElements()) {
        NetworkInterface nif = e.nextElement();
        System.out.println("Name: " + nif.getName() + ",  Supports Multicast: " + nif.supportsMulticast()
                + ", isUp(): " + nif.isUp());
    }/* w  w  w .j  av a 2s .co  m*/
}

From source file:MainClass.java

public static void main(String[] args) {

    try {/*from   w ww.  ja  v  a 2  s  .  co  m*/
        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 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   w  w  w . ja  v a2s . 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 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);
        }/*from w ww  .  jav a  2 s  .  c o  m*/
        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();
    }
}

From source file:Main.java

public static void main(String args[]) {
    // create array list object       
    List<String> arrlist = new ArrayList<String>();

    // populate the list
    arrlist.add("A");
    arrlist.add("B");
    arrlist.add("from java2s.com");

    // create Enumeration
    Enumeration<String> e = Collections.enumeration(arrlist);

    while (e.hasMoreElements()) {
        System.out.println("Value is: " + e.nextElement());
    }//from w w  w.ja  v  a2  s .  c  om
}

From source file:ArrayToVector.java

public static void main(String[] args) {
    Object[] a1d = { "Hello World", new Date(), Calendar.getInstance(), };
    // Arrays.asList(Object[]) --> List
    List l = Arrays.asList(a1d);

    // Vector contstructor takes Collection
    // List is a subclass of Collection
    Vector v;/*from  ww  w  .  ja  v  a  2 s  .  c om*/
    v = new Vector(l);

    // Or, more simply:
    v = new Vector(Arrays.asList(a1d));

    // Just to prove that it worked.
    Enumeration e = v.elements();
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }
}