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 {
    SortedSet<String> set = new TreeSet<String>();
    set.add("b");
    set.add("c");
    set.add("a");

    Iterator it = set.iterator();
    while (it.hasNext()) {
        Object element = it.next();
    }/*from   ww  w  . ja  va2 s  . c  o m*/
    String[] array = (String[]) set.toArray(new String[set.size()]);
}

From source file:MainClass.java

public static void main(String[] args) {
    List list = Arrays.asList("A", "B", "C", "D");
    Iterator iterator = list.iterator();
    while (iterator.hasNext()) {
        String element = (String) iterator.next();
        System.out.println(element);
    }//  w  ww.j a v a  2 s . c o  m

}

From source file:MainClass.java

public static void main(String[] a) {
    String elements[] = { "A", "B", "C", "D", "E" };
    Set set = new HashSet(Arrays.asList(elements));

    Iterator iter = set.iterator();
    while (iter.hasNext()) {
        System.out.println(iter.next());
    }/* w  ww.  j a  v a  2 s .c  o m*/

}

From source file:Main.java

public static void main(String[] args) {
    String[] array = { "A", "B", "C", "D" };
    List list = Arrays.asList(array);

    Iterator iterator = list.iterator();
    while (iterator.hasNext()) {
        System.out.println((String) iterator.next());
    }/*from  ww w  .  j a v a 2  s  . co m*/
}

From source file:Main.java

public static void main(String[] a) {
    String elements[] = { "A", "B", "C", "D", "E" };
    HashSet<String> set = new HashSet<String>(Arrays.asList(elements));

    Iterator iter = set.iterator();
    while (iter.hasNext()) {
        System.out.println(iter.next());
    }/*from  w ww. jav  a2s.co  m*/

}

From source file:Main.java

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

    Collection c = treeMap.values();
    Iterator itr = c.iterator();

    while (itr.hasNext()) {
        System.out.println(itr.next());
    }// w w w.  ja  va2 s.c  o  m
}

From source file:MainClass.java

public static void main(String[] a) {
    ArrayList<String> nums = new ArrayList<String>();
    nums.add("O");
    nums.add("Two");
    nums.add("Three");
    nums.add("Four");

    String s;//from  www .jav  a 2  s.  c o m
    Iterator e = nums.iterator();
    while (e.hasNext()) {
        s = (String) e.next();
        System.out.println(s);
    }
}

From source file:MainClass.java

public static void main(String[] s) {
    Hashtable table = new Hashtable();
    table.put("key1", "value1");
    table.put("key2", "value2");
    table.put("key3", "value3");

    Set set = table.entrySet();//w ww.  java2  s.co  m
    Iterator it = set.iterator();
    while (it.hasNext()) {
        Map.Entry entry = (Map.Entry) it.next();
        System.out.println(entry.getKey() + " : " + entry.getValue());
    }
}

From source file:Main.java

public static void main(String[] args) {
    LinkedList<String> lList = new LinkedList<String>();
    lList.add("1");
    lList.add("2");
    lList.add("3");
    lList.add("4");
    lList.add("5");

    Iterator itr = lList.iterator();
    while (itr.hasNext()) {
        System.out.println(itr.next());
    }// ww w .  j  a  v  a  2s .  com
}

From source file:Main.java

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

    tSet.add(new Integer("1"));
    tSet.add(new Integer("2"));
    tSet.add(new Integer("3"));

    Iterator itr = tSet.iterator();

    while (itr.hasNext()) {
        System.out.println(itr.next());
    }//  w w  w.  jav a  2 s .c  o m
}