Example usage for java.util ListIterator remove

Introduction

In this page you can find the example usage for java.util ListIterator remove.

Prototype

void remove();

Source Link

Document

Removes from the list the last element that was returned by #next or #previous (optional operation).

Usage

From source file:Main.java

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

    arrlist.add(1);/*from ww w . j a  v a  2 s.co m*/
    arrlist.add(2);
    arrlist.add(3);
    arrlist.add(4);
    arrlist.add(5);

    ListIterator<Integer> iterator = arrlist.listIterator();
    while (iterator.hasNext()) {
        Integer i = iterator.next();
        iterator.remove();

    }
    System.out.println(arrlist);

}

From source file:Main.java

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

    arrlist.add(1);/*  www.  j av  a 2  s  .  co m*/
    arrlist.add(2);
    arrlist.add(3);
    arrlist.add(4);
    arrlist.add(5);

    ListIterator<Integer> iterator = arrlist.listIterator(2);
    while (iterator.hasNext()) {
        Integer i = iterator.next();
        iterator.remove();

    }
    System.out.println(arrlist);

}

From source file:MovingPlanets.java

public static void main(String args[]) {
    String names[] = { "Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune", "Pluto" };
    List planets = new ArrayList();
    for (int i = 0, n = names.length; i < n; i++) {
        planets.add(names[i]);//  www.  jav  a  2s .com
    }
    ListIterator lit = planets.listIterator();
    String s;
    lit.next();
    lit.next();
    s = (String) lit.next();
    lit.remove();
    lit.next();
    lit.next();
    lit.next();
    lit.add(s);
    lit.next(); // Gets back just added
    lit.previous();
    lit.previous();
    s = (String) lit.previous();
    lit.remove();
    lit.next();
    lit.next();
    lit.add(s);
    Iterator it = planets.iterator();
    while (it.hasNext()) {
        System.out.println(it.next());
    }
}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> aList = new ArrayList<String>();

    aList.add("1");
    aList.add("2");
    aList.add("3");
    aList.add("4");
    aList.add("5");

    // Get an object of ListIterator using listIterator() method

    ListIterator listIterator = aList.listIterator();
    listIterator.next();//from   w w w .  j a v  a  2  s .  c  o m
    listIterator.next();

    // remove element returned by last next method

    listIterator.remove();
    for (String str : aList) {
        System.out.println(str);
    }
}

From source file:Main.java

/**
 * Remove all null elements at the end of the list.
 *//*from   w  w w  . j a va  2 s.  c  o m*/
public static <T> void trimTail(List<T> l) {
    final ListIterator<T> it = l.listIterator(l.size());
    while (it.hasPrevious()) {
        if (it.previous() != null)
            return;
        it.remove();
    }
}

From source file:Main.java

/**
 * Removed null elements in-place./*from   www .j a  va 2s  .c  om*/
 * 
 * @param <T>
 * @param col
 */
public static <T> void clearNulls(List<T> col) {
    ListIterator<T> iter = col.listIterator();
    while (iter.hasNext()) {
        if (iter.next() == null) {
            iter.remove();
        }
    }
}

From source file:Main.java

/**
 *  Resizes the passed list to N entries. Will add the specified object if
 *  the list is smaller than the desired size, discard trailing entries if
 *  larger. This is primarily used to presize a list that will be accessed
 *  by index, but it may also be used to truncate a list for display.
 *
 *  @return The list, as a convenience for callers
 *
 *  @throws UnsupportedOperationException if the list does not implement
 *          <code>RandomAccess</code> and its list iterator does not
 *          support the <code>remove()</code> operation
 *//*from  w  ww.j  av a2  s. co m*/
public static <T> List<T> resize(List<T> list, int newSize, T obj) {
    if (list instanceof ArrayList)
        ((ArrayList<T>) list).ensureCapacity(newSize);

    if (list.size() < newSize) {
        for (int ii = list.size(); ii < newSize; ii++)
            list.add(obj);
    } else if (list.size() > newSize) {
        if (list instanceof RandomAccess) {
            for (int ii = list.size() - 1; ii >= newSize; ii--)
                list.remove(ii);
        } else {
            ListIterator<T> itx = list.listIterator(newSize);
            while (itx.hasNext()) {
                itx.next();
                itx.remove();
            }
        }
    }

    return list;
}

From source file:Main.java

/**
 * Keeps and returns the original list.//w  w  w  .  j a v  a 2 s.  c o  m
 * 
 * @param <T>
 * @param list
 * @return removes any duplicates in the list. Keeps the first occurrence of duplicates.
 */
public static <T> List<T> removeDuplicates(List<T> list) {
    HashSet<T> set = new HashSet<T>(list.size());
    ListIterator<T> i = list.listIterator();
    while (i.hasNext()) {
        T cur = i.next();
        if (set.contains(cur)) {
            i.remove();
        } else {
            set.add(cur);
        }
    }

    return list;
}

From source file:Main.java

public static long iterRemove(List list) {
    ListIterator iter = list.listIterator();
    long start, stop, result = 0;
    for (int i = 0; i < 100; i++) {
        iter.next();//from w w w.ja v a 2  s.  c o m
        start = System.nanoTime();
        iter.remove();
        stop = System.nanoTime();
        result += stop - start;
    }
    return result / 100;
}

From source file:edu.cornell.mannlib.vitro.webapp.utils.fields.FieldUtils.java

public static List<Individual> removeIndividualsAlreadyInRange(List<Individual> individuals,
        List<ObjectPropertyStatement> stmts, String predicateUri, String objectUriBeingEdited) {
    HashSet<String> range = new HashSet<String>();

    for (ObjectPropertyStatement ops : stmts) {
        if (ops.getPropertyURI().equals(predicateUri))
            range.add(ops.getObjectURI());
    }/*from   ww  w. j  a  v a2 s  .  c o  m*/

    int removeCount = 0;
    ListIterator<Individual> it = individuals.listIterator();
    while (it.hasNext()) {
        Individual ind = it.next();
        if (range.contains(ind.getURI()) && !(ind.getURI().equals(objectUriBeingEdited))) {
            it.remove();
            ++removeCount;
        }
    }

    return individuals;
}