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 dumpCurrentSharedPrerence(SharedPreferences pref) {
    Map<String, ?> map = pref.getAll();
    Iterator<String> ite = map.keySet().iterator();
    while (ite.hasNext()) {
        String key = ite.next();//from  w w w.j  a  va  2 s. co  m
        Log.d(TAG, "dump " + key + " : " + String.valueOf(map.get(key)));
    }
}

From source file:Main.java

public static void printMapBySet(Map map) {
    Set<String> ketSet = map.keySet();
    Iterator<String> iterator = ketSet.iterator();
    while (iterator.hasNext()) {
        String key = iterator.next();
        String value = (String) map.get(key);
        Log.i(TAG, "----key = " + key + ",value = " + value);
    }/*from ww w  . ja v a2  s  . co  m*/

}

From source file:Main.java

public static String join(Collection<String> collection, String delimiter) {
    StringBuffer buffer = new StringBuffer();
    Iterator<String> iter = collection.iterator();
    while (iter.hasNext()) {
        buffer.append(iter.next());//from  w  w  w  . ja  v  a  2 s.c  o  m
        if (iter.hasNext()) {
            buffer.append(delimiter);
        }
    }
    return buffer.toString();
}

From source file:Main.java

public static <T> void cleanNulls(Collection<T> c) {
    Iterator<T> it = c.iterator();
    try {//  w  w w . j  ava2 s  .com
        while (it.hasNext())
            if (it.next() == null)
                c.remove(null);
    } catch (NullPointerException e) {
        // Does not permit nulls, it should be ok
    }
}

From source file:Main.java

public static <T> T getByIndex(Iterable<T> iterable, int index) {
    T el = null;//from  w w w.  j ava 2 s  .  com
    Iterator<T> it = iterable.iterator();
    for (int i = 0; it.hasNext(); i++) {
        T cur = it.next();
        if (i == index) {
            el = cur;
            break;
        }
    }
    return el;
}

From source file:Main.java

/**
 * Adds all elements that a given {@link Iterator} provides to a given
 * {@link Collection} of appropriate type
 * //from  w  w  w.j  a  v a 2s.co  m
 * @param targetCollection
 *           the {@link Collection} where to add the elements
 * @param sourceIterator
 *           the {@link Iterator} where to get the elements from
 * @param <T>
 *           the type of elements to transfer
 */
public static <T> void addAll(final Collection<? super T> targetCollection,
        final Iterator<? extends T> sourceIterator) {
    while (sourceIterator.hasNext()) {
        targetCollection.add(sourceIterator.next());
    }
}

From source file:Main.java

public static List list(Iterator ite) {
    ArrayList ret = new ArrayList();
    while (ite.hasNext()) {
        Object o = ite.next();/*from w  w  w.  j av a 2s  .c  o  m*/
        ret.add(o);
    }
    return ret;
}

From source file:Main.java

/**
 *//*from w  w w  . ja v  a  2  s .  com*/
public static String[] getTextElements(List<Element> elements) throws Exception {
    ArrayList<String> list = new ArrayList<String>();
    Iterator<Element> iter = elements.iterator();
    while (iter.hasNext()) {
        String s = iter.next().getFirstChild().getTextContent();
        list.add(s);
    }
    return list.toArray(new String[0]);
}

From source file:Main.java

public static boolean containsIgnoreCase(List<String> l, String s) {
    Iterator<String> it = l.iterator();
    while (it.hasNext()) {
        if (it.next().equalsIgnoreCase(s))
            return true;
    }// w  ww . jav  a 2  s  . c  o m
    return false;
}

From source file:Main.java

/** Write all Identifiables that we contain to os.  The total
 * length must be written before this method is called.
 *//*www . j  av a2  s . c o m*/
public static void writeIdentifiableSequence(List container, OutputStream os) {
    os.write_long(container.size());
    Iterator iter = container.iterator();
    while (iter.hasNext()) {
        Identifiable obj = (Identifiable) (iter.next());
        os.write_long(obj.getId());
        obj.write(os);
    }
}