Example usage for java.util Collection iterator

Introduction

In this page you can find the example usage for java.util Collection iterator.

Prototype

Iterator<E> iterator();

Source Link

Document

Returns an iterator over the elements in this collection.

Usage

From source file:Main.java

public static void main(String[] a) {
    HashMap<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    Collection set = map.values();
    Iterator iter = set.iterator();

    while (iter.hasNext()) {
        System.out.println(iter.next());
    }//from   w ww .j a v a 2s  .  c  o  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());
    }//from   ww  w. j ava2  s  .  c o  m
}

From source file:Main.java

public static void main(String[] a) {
    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    Collection set = map.values();
    Iterator iter = set.iterator();

    while (iter.hasNext()) {
        System.out.println(iter.next());
    }/*w w w  .ja  v a2  s  .com*/
}

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");

    Collection c = hMap.values();
    Iterator itr = c.iterator();
    while (itr.hasNext()) {
        System.out.println(itr.next());
    }/*  w  w w  . j  av  a2  s  . c  om*/
}

From source file:Main.java

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

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

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

    while (itr.hasNext()) {
        System.out.println(itr.next());
    }//from w  w w  .  j a  va 2s. co  m
}

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();
    Iterator itr = c.iterator();
    while (itr.hasNext()) {
        System.out.println(itr.next());
    }//from w  w w. j  av  a2  s.  c  o  m
    c.remove("One");

    Enumeration e = ht.elements();

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

From source file:Main.java

public static void main(String[] args) throws Exception {
    File root = new File("c:\\");

    String[] extensions = { "xml", "java", "dat" };
    boolean recursive = true;

    Collection files = FileUtils.listFiles(root, extensions, recursive);

    for (Iterator iterator = files.iterator(); iterator.hasNext();) {
        File file = (File) iterator.next();
        System.out.println("File = " + file.getAbsolutePath());
    }/*  ww w .j ava2 s.co m*/
}

From source file:MainClass.java

public static void main(String[] a) {
    Collection c = new ArrayList();
    c.add("1");/*www  . j  a  va 2s.  co m*/
    c.add("2");
    c.add("3");
    Iterator i = c.iterator();
    while (i.hasNext()) {
        System.out.println(i.next());
    }
}

From source file:Main.java

public static void main(String[] a) {
    Collection<String> c = new ArrayList<String>();
    c.add("1");/*ww w.  ja  va  2  s  . c om*/
    c.add("2");
    c.add("3");
    Iterator i = c.iterator();
    while (i.hasNext()) {
        System.out.println(i.next());
    }
}

From source file:list.Main.java

public static void main(String[] args) throws Exception {
    Options options = getOptions();/*from w w  w  .j  a  v  a 2 s.c om*/
    try {

        CommandLineParser parser = new GnuParser();

        CommandLine line = parser.parse(options, args);
        File dir = new File(line.getOptionValue("dir", "."));
        Collection files = ListFile.list(dir);
        System.out.println("listing files in " + dir);
        for (Iterator it = files.iterator(); it.hasNext();) {
            System.out.println("\t" + it.next() + "\n");
        }
    } catch (ParseException exp) {
        // oops, something went wrong
        System.err.println("Parsing failed.  Reason: " + exp.getMessage());

        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("list", options);
    }
}