Example usage for java.util Iterator hasNext

Introduction

In this page you can find the example usage for java.util Iterator hasNext.

Prototype

boolean hasNext();

Source Link

Document

Returns true if the iteration has more elements.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    int capacity = 10;
    ArrayBlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity);

    for (int i = 0; i < 10; i++) {
        queue.add(i);//from www.  j  a v a 2 s .  c o  m
    }
    Iterator<Integer> it = queue.iterator();
    while (it.hasNext()) {
        System.out.println(it.next());
    }
}

From source file:Main.java

public static void main(String args[]) {
    LinkedList<String> ll = new LinkedList<String>();

    ll.add("A");/* ww  w.  ja v a 2 s .  co m*/
    ll.add("ja v a2s.com");
    ll.addLast("B");
    ll.add("C");

    Iterator<String> itr = ll.iterator();
    while (itr.hasNext()) {
        String element = itr.next();
        System.out.print(element + " ");
    }
}

From source file:Main.java

public static void main(String[] argv) {
    Map map = new HashMap();

    map.put("Adobe", "Mountain View, CA");
    map.put("IBM", "White Plains, NY");
    map.put("Learning Tree", "Los Angeles, CA");

    Iterator k = map.keySet().iterator();
    while (k.hasNext()) {
        String key = (String) k.next();
        System.out.println("Key " + key + "; Value " + (String) map.get(key));
    }//from   w w  w .  j av a2s.  c o  m
}

From source file:MainClass.java

public static void main(String[] args) {
    Map charsets = Charset.availableCharsets();
    Iterator iterator = charsets.keySet().iterator();
    while (iterator.hasNext()) {
        System.out.println(iterator.next());
    }/*w  ww.ja v  a2  s  .com*/
}

From source file:MainClass.java

public static void main(String[] a) {
    Properties props = System.getProperties();
    Iterator iter = props.entrySet().iterator();

    while (iter.hasNext()) {
        Map.Entry entry = (Map.Entry) iter.next();
        System.out.println(entry.getKey() + " -- " + entry.getValue());
    }//from  ww  w  .j  a v a2  s.  com

}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    FileInputStream in = new FileInputStream(args[0]);
    X509CRL crl = (X509CRL) cf.generateCRL(in);
    Set s = crl.getRevokedCertificates();
    if (s != null && s.isEmpty() == false) {
        Iterator t = s.iterator();
        while (t.hasNext()) {
            X509CRLEntry entry = (X509CRLEntry) t.next();
            System.out.println("serial number = " + entry.getSerialNumber().toString(16));
            System.out.println("revocation date = " + entry.getRevocationDate());
            System.out.println("extensions = " + entry.hasExtensions());
        }//from w w  w. j  a v a 2 s .  c  o m
    }
    in.close();
}

From source file:Main.java

public static void main(String[] args) {
    HashMap<String, String> hMap = new HashMap<String, String>();

    hMap.put("1", "One");
    hMap.put("2", "Two");
    hMap.put("3", "Three");

    Set st = hMap.keySet();/*from   w w  w .j  av  a  2  s .  co  m*/
    Iterator itr = st.iterator();

    while (itr.hasNext())
        System.out.println(itr.next());

    // remove 2 from Set
    st.remove("2");

    System.out.println(hMap.containsKey("2"));
}

From source file:Main.java

public static void main(String[] args) {
    Vector<Integer> vec = new Vector<Integer>();

    vec.add(4);//from w  ww.jav a 2 s  .  c o m
    vec.add(3);
    vec.add(2);
    vec.add(1);

    System.out.println(vec);

    Iterator<Integer> it = vec.iterator();
    while (it.hasNext()) {
        System.out.println(it.next());
    }
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    String fileContent = "s1=1\n" + "s2=Main\n" + "s3=Fri Jan 31 00:00:00 IST 3913";
    StringReader reader = new StringReader(fileContent);

    PropertyResourceBundle bundle = new Main(reader);

    Set keySet = bundle.handleKeySet();
    Iterator keys = keySet.iterator();
    while (keys.hasNext()) {
        System.out.println("Bundle key: " + keys.next());
    }//w ww.j ava2  s .com

}

From source file:Main.java

public static void main(String[] args) {
    Hashtable<String, String> ht = new Hashtable<String, String>();
    ht.put("1", "One");
    ht.put("2", "Two");
    ht.put("3", "Three");

    Collection c = ht.values();//from w  w  w  .j  av a2s.  c om
    Iterator itr = c.iterator();
    while (itr.hasNext()) {
        System.out.println(itr.next());
    }
    c.remove("One");

    Enumeration e = ht.elements();

    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }
}