Example usage for java.util Enumeration hasMoreElements

Introduction

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

Prototype

boolean hasMoreElements();

Source Link

Document

Tests if this enumeration contains more elements.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class driverClass = Class.forName("org.hsqldb.jdbcDriver");
    DriverManager.registerDriver((Driver) driverClass.newInstance());

    // Print out all loaded JDBC drivers.
    java.util.Enumeration e = java.sql.DriverManager.getDrivers();
    while (e.hasMoreElements()) {
        Object driverAsObject = e.nextElement();
        System.out.println("JDBC Driver=" + driverAsObject);
    }/*from w  ww  .j  a v  a  2 s . c  om*/

}

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();
        }//w ww  .j a  va  2 s  .c om
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "data.zip";
    ZipFile zipFile = new ZipFile(zipname);
    Enumeration enumeration = zipFile.entries();
    while (enumeration.hasMoreElements()) {
        ZipEntry zipEntry = (ZipEntry) enumeration.nextElement();
        System.out.println("Unzipping: " + zipEntry.getName());
        BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(zipEntry));
        int size;
        byte[] buffer = new byte[2048];
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(zipEntry.getName()),
                buffer.length);/*  ww w  .  j a  v  a  2 s.  c  o  m*/
        while ((size = bis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
        bis.close();
    }
}

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 {// w w  w .ja  v a  2 s.  c om
            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:MainClass.java

public static void main(String[] ap) {
    Enumeration pList = CommPortIdentifier.getPortIdentifiers();
    while (pList.hasMoreElements()) {
        CommPortIdentifier cpi = (CommPortIdentifier) pList.nextElement();
        System.out.print("Port " + cpi.getName() + " ");
        if (cpi.getPortType() == CommPortIdentifier.PORT_SERIAL) {
            System.out.println("is a Serial Port: " + cpi);
        } else if (cpi.getPortType() == CommPortIdentifier.PORT_PARALLEL) {
            System.out.println("is a Parallel Port: " + cpi);
        } else {/*from   w  w w .j  av a 2 s . c o m*/
            System.out.println("is an Unknown Port: " + cpi);
        }
    }
}

From source file:ArrayEnumerationFactory.java

public static void main(String args[]) {
    Enumeration e = makeEnumeration(args);
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }/*from  www  .ja  va2  s. c o  m*/
    e = makeEnumeration(new int[] { 1, 3, 4, 5 });
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }
    try {
        e = makeEnumeration(new Double(Math.PI));
    } catch (IllegalArgumentException ex) {
        System.err.println("Can't enumerate that: " + ex.getMessage());
    }
}

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());
    }/*from   w ww  .  j  a  v a  2  s .c  o  m*/
}

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.ja  v a2 s  . co  m
            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:ArrayEnumeration.java

public static void main(String args[]) {
    Object obj = new int[] { 2, 3, 5, 8, 13, 21 };
    Enumeration e = new ArrayEnumeration(obj);
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }//w ww .  ja  v a 2s .  c  o m
    try {
        e = new ArrayEnumeration("Not an Array");
    } catch (IllegalArgumentException ex) {
        System.out.println(ex.getMessage());
    }
}

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());
    }//www  .  ja va  2 s  .  c  o m
}