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 deleteDuplicate(List<Integer> list) {
    List<Integer> tempList = new ArrayList<Integer>();

    Iterator<Integer> iter = list.iterator();
    while (iter.hasNext()) {
        Integer current = iter.next();
        if (tempList.contains(current)) {
            iter.remove();/*  ww w  .j av a 2 s.  c o  m*/
        } else {
            tempList.add(current);
        }
    }
}

From source file:Main.java

public static Map<String, String> bundleToMap(Bundle extras) {
    Map<String, String> map = new HashMap<String, String>();

    Set<String> ks = extras.keySet();
    Iterator<String> iterator = ks.iterator();
    while (iterator.hasNext()) {
        String key = iterator.next();
        map.put(key, extras.getString(key));
    }/*  w  w w. j a v a 2  s  .c om*/
    return map;
}

From source file:Main.java

public static String join(Iterator<String> strings, String sep) {
    if (!strings.hasNext())
        return "";

    String start = strings.next();
    if (!strings.hasNext()) // only one, avoid builder
        return start;

    StringBuilder sb = new StringBuilder(64).append(start);
    while (strings.hasNext()) {
        sb.append(sep);/*from w  w w .j av a 2 s  .c o m*/
        sb.append(strings.next());
    }
    return sb.toString();
}

From source file:Main.java

public static final <E, F extends Collection<E>> F removeNulls(F collection) {
    Iterator<E> iterator = collection.iterator();
    while (iterator.hasNext()) {
        if (iterator.next() == null) {
            iterator.remove();//from   w ww. ja v a2  s .  c o  m
        }
    }

    return collection;
}

From source file:Main.java

public static <T> T lastOrDefault(Iterable<T> source) {
    if (source == null || !source.iterator().hasNext())
        return null;
    T result = null;// ww  w  . java2s. c  om
    Iterator<T> it = source.iterator();
    while (it.hasNext()) {
        result = it.next();
        // source
    }
    return result;

}

From source file:Main.java

/**
 * Creates new collection that does not contain nulls. Does not change input
 * collection. It uses raw collection - not parameterized.
 * {@link SuppressWarnings} annotation is added to avoid IDE to report
 * rawtypes and unchecked warnings./* w ww  .j  a  v a  2  s .  c o  m*/
 * 
 * @param c
 *            raw collection to create cleaned collection from.
 * @return collection without nulls
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public static Collection toCleanedRaw(Collection c) {
    ArrayList cleaned = new ArrayList();
    Iterator iterator = c.iterator();
    while (iterator.hasNext()) {
        Object e = iterator.next();
        if (e != null) {
            cleaned.add(e);
        }
    }
    return cleaned;
}

From source file:Main.java

protected static void checkExcludedEmail(Set excluded, String email) throws CertPathValidatorException {
    if (excluded.isEmpty()) {
        return;//ww w. j av a  2  s .c o  m
    }

    String sub = email.substring(email.indexOf('@') + 1);
    Iterator it = excluded.iterator();

    while (it.hasNext()) {
        String str = (String) it.next();
        if (sub.endsWith(str)) {
            throw new CertPathValidatorException("Subject email address is from an excluded subtree");
        }
    }
}

From source file:Main.java

public static String toIdListString(Collection<Long> ids) {
    StringBuilder response = new StringBuilder();
    Iterator<Long> i = ids.iterator();
    while (i.hasNext()) {
        response.append(i.next());/*  w w  w . j a  va 2  s .c o  m*/
        if (i.hasNext())
            response.append(",");
    }
    return response.toString();
}

From source file:Main.java

public static String join(Iterable<? extends CharSequence> s, String delimiter) {
    Iterator<? extends CharSequence> iter = s.iterator();
    if (!iter.hasNext())
        return "";
    StringBuilder buffer = new StringBuilder(iter.next());
    while (iter.hasNext())
        buffer.append(delimiter).append(iter.next());
    return buffer.toString();
}

From source file:Main.java

public static void printMapList(List<Map> list) {
    Map map = null;//from  www  . j a  v a 2 s  . com
    for (int i = 0; i < list.size(); i++) {
        map = list.get(i);
        Iterator iter = map.entrySet().iterator();
        while (iter.hasNext()) {
            Map.Entry entry = (Map.Entry) iter.next();
            System.out.println(entry.getKey() + ": " + entry.getValue());
        }
    }
}