Example usage for java.util Iterator next

Introduction

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

Prototype

E next();

Source Link

Document

Returns the next element in the iteration.

Usage

From source file:Main.java

public static Map<String, Boolean> parseBooleanJsonMap(JSONObject object) throws JSONException {
    Map<String, Boolean> map = new ArrayMap<String, Boolean>();
    Iterator<String> keys = object.keys();
    while (keys.hasNext()) {
        String key = keys.next();
        map.put(key, object.getBoolean(key));
    }/*from   w w w  .  ja va 2s.  co  m*/
    return map;
}

From source file:Main.java

public static Collection and(Collection collection1, Collection collection2) {
    Vector completeList = new Vector();

    if (collection2 == null)
        return completeList;
    Iterator i = collection2.iterator();
    while (i.hasNext()) {
        Object addlItem = i.next();
        if (collection1.contains(addlItem) == true) {
            completeList.addElement(addlItem);
        }/*from  w  ww  . jav  a2s  . co  m*/
    }
    return completeList;
}

From source file:Main.java

public static ArrayList<String> getHashMap(HashMap<String, String> hm) {
    ArrayList<String> a = new ArrayList<String>();
    Set s = hm.entrySet();/*from  ww  w. ja  v a 2s.  com*/
    Iterator it = s.iterator();
    while (it.hasNext()) {
        Map.Entry m = (Map.Entry) it.next();
        a.add(m.getKey() + "\t" + m.getValue());
    }
    return a;
}

From source file:Main.java

/**
 * Get comma separated string from collection
 * //w w  w.ja va2s.com
 * @param strings
 * @return
 */
public static String getCommaSeparatedString(Collection<String> strings) {
    if (strings != null && !strings.isEmpty()) {
        Iterator<String> it = strings.iterator();
        StringBuilder sb = new StringBuilder(it.next());
        while (it.hasNext()) {
            sb.append("," + it.next());
        }
        return sb.toString();
    } else {
        return null;
    }
}

From source file:Main.java

License:asdf

public static <K, V> Object getKey(Map<K, V> in, V value) {
    Set<K> key = in.keySet();
    Iterator<K> keyIterator = key.iterator();
    while (keyIterator.hasNext()) {
        K valueObject = (K) keyIterator.next();
        if (in.get(valueObject).equals(value)) {
            return valueObject;
        }/*from www . j a  v  a2  s . co m*/
    }
    return null;
}

From source file:Main.java

@SuppressWarnings("rawtypes")
public static String getKeyByValue(Map<?, String> hm, String value) {
    Set<?> s = hm.entrySet();
    Iterator<?> it = s.iterator();
    while (it.hasNext()) {
        Map.Entry m = (Map.Entry) it.next();
        if (m.getValue().equals(value))
            return m.getKey() + "";
    }//from  ww w.  j  a v  a 2s  .c  o  m
    return null;
}

From source file:Main.java

/**
 * Creates new collection that contains only element whose string
 * representation starts with prefix It is parameterized.
 * /*from  ww w  .  j a  va2  s  .  c  om*/
 * @param c
 *            raw collection to create prefixed collection from
 * @param prefix
 *            to use as filter
 * @return collection without nulls
 */
public static <T> Collection<T> withPrefix(Collection<T> c, String prefix) {
    Collection<T> prefixed = new ArrayList<T>();
    Iterator<T> iterator = c.iterator();
    while (iterator.hasNext()) {
        T o = iterator.next();
        if (o != null && o.toString().startsWith(prefix)) {
            prefixed.add(o);
        }
    }
    return prefixed;
}

From source file:Main.java

/**
 * Returns a {@link Collection} containing <tt><i>a</i> - <i>b</i></tt>. The
 * cardinality of each element <i>e</i> in the returned {@link Collection}
 * will be the cardinality of <i>e</i> in <i>a</i> minus the cardinality of
 * <i>e</i> in <i>b</i>, or zero, whichever is greater.
 * //from  w  w  w . j a  v  a 2s .  c  o m
 * @see Collection#removeAll
 */
public static Collection subtract(final Collection a, final Collection b) {
    ArrayList list = new ArrayList(a);
    Iterator it = b.iterator();
    while (it.hasNext()) {
        list.remove(it.next());
    }
    return list;
}

From source file:Main.java

public static String implode(final Iterable<?> pieces, final String glue) {
    if (pieces == null) {
        return "";
    }//from  w ww .  ja v  a 2s  .  co m
    final StringBuilder resBuf = new StringBuilder(100);
    final Iterator<?> iter = pieces.iterator();
    resBuf.append(iter.next().toString());
    while (iter.hasNext()) {
        resBuf.append(glue);
        resBuf.append(iter.next().toString());
    }
    return resBuf.toString();
}

From source file:Main.java

@SuppressWarnings("rawtypes")
public static Map<Integer, String> swapStrKeysAndIntValues(Map<String, Integer> hm) {
    HashMap<Integer, String> nhm = new HashMap<Integer, String>();
    Set<?> s = hm.entrySet();
    Iterator<?> it = s.iterator();
    while (it.hasNext()) {
        Map.Entry m = (Map.Entry) it.next();
        nhm.put((Integer) m.getValue(), (String) m.getKey());
    }//from  w  ww .  j  av  a2  s  .  c o  m
    return nhm;
}