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[] args) {
    Map<String, Charset> charsets = Charset.availableCharsets();
    Iterator<Charset> iterator = charsets.values().iterator();
    while (iterator.hasNext()) {
        Charset cs = (Charset) iterator.next();
        System.out.println(cs.displayName());
        System.out.println(cs.canEncode());
    }/* www .j a  v  a2  s. c o m*/
}

From source file:Main.java

public static void main(String[] args) {

    TreeSet<Integer> treeadd = new TreeSet<Integer>();

    treeadd.add(1);/*from   w ww.  j a  va 2 s .  c  om*/
    treeadd.add(13);
    treeadd.add(17);
    treeadd.add(22);

    Iterator<Integer> iterator = treeadd.iterator();

    while (iterator.hasNext()) {
        System.out.println(iterator.next());
    }
}

From source file:Main.java

public static void main(String[] args) {

    TreeSet<Integer> treeadd = new TreeSet<Integer>();

    treeadd.add(12);/*from   w  w  w .  ja  va2 s. c  o  m*/
    treeadd.add(13);
    treeadd.add(14);
    treeadd.add(15);

    Iterator<Integer> iterator = treeadd.iterator();

    while (iterator.hasNext()) {
        System.out.print(iterator.next());
    }
}

From source file:MainClass.java

public static void main(String[] args) {
    Map charSets = Charset.availableCharsets();
    Iterator it = charSets.keySet().iterator();
    while (it.hasNext()) {
        String csName = (String) it.next();
        System.out.print(csName);
        Iterator aliases = ((Charset) charSets.get(csName)).aliases().iterator();
        if (aliases.hasNext())
            System.out.print(": ");
        while (aliases.hasNext()) {
            System.out.print(aliases.next());
            if (aliases.hasNext())
                System.out.print(", ");
        }/*w w  w. java2 s .  co m*/
        System.out.println();
    }
}

From source file:Main.java

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

    arrlist.add(1);/*from   w ww . j  a v  a2  s  .  c  om*/
    arrlist.add(2);
    arrlist.add(3);
    arrlist.add(4);
    arrlist.add(5);

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

}

From source file:Main.java

public static void main(String[] args) {
    Map errors = new HashMap();

    errors.put("404", "A.");
    errors.put("403", "B.");
    errors.put("500", "C.");

    String errorDesc = (String) errors.get("404");
    System.out.println("Error 404: " + errorDesc);

    Iterator iterator = errors.keySet().iterator();
    while (iterator.hasNext()) {
        String key = (String) iterator.next();
        System.out.println("Error " + key + " means " + errors.get(key));
    }/*from   w ww.ja v a 2s .c  o  m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String url = "http://www.java2s.com";
    Document doc = Jsoup.connect(url).userAgent(
            "Mozilla/5.0 (Windows; U; WindowsNT 5.1;" + " en-US; rv1.8.1.6) Gecko/20070725 Firefox/2.0.0.6")
            .get();/*w  w  w.  j a  va2 s.c o m*/

    Elements resultDivElems = doc.select("div");
    Iterator<Element> itr = resultDivElems.iterator();

    while (itr.hasNext()) {
        System.out.println(((Element) itr.next()).text());
    }
}

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");

    Set st = ht.keySet();//from  w  w  w  .j  ava2s.c  o m

    Iterator itr = st.iterator();

    while (itr.hasNext()) {
        System.out.println(itr.next());
    }
    st.remove("2");

    Enumeration e = ht.keys();
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }
}

From source file:OldStyle.java

public static void main(String args[]) {
    ArrayList list = new ArrayList();

    // These lines store strings, but any type of object 
    // can be stored.  In old-style code, there is no  
    // convenient way restrict the type of objects stored 
    // in a collection 
    list.add("one");
    list.add("two");
    list.add("three");
    list.add("four");

    Iterator itr = list.iterator();
    while (itr.hasNext()) {

        // To retrieve an element, an explicit type cast is needed 
        // because the collection stores only Object. 
        String str = (String) itr.next(); // explicit cast needed here. 

        System.out.println(str + " is " + str.length() + " chars long.");
    }/*from   w ww.jav  a  2s.co m*/
}

From source file:Main.java

public static void main(String[] args) {
    List<String> syncList = Collections.synchronizedList(new ArrayList<String>());

    syncList.add("one");
    syncList.add("two");
    syncList.add("three");

    synchronized (syncList) {
        Iterator<String> iterator = syncList.iterator();
        while (iterator.hasNext()) {
            System.out.println("item: " + iterator.next());
        }//from  w  ww . j  av a2 s  .  c om
    }
}