Example usage for java.util Collection remove

Introduction

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

Prototype

boolean remove(Object o);

Source Link

Document

Removes a single instance of the specified element from this collection, if it is present (optional operation).

Usage

From source file:Main.java

public static <T> void removeAll(Collection<T> collection, T... array) {
    for (T t : array) {
        collection.remove(t);
    }// w w  w. j av a2 s .c  o m
}

From source file:Main.java

public static <O> boolean replace(Collection<O> c, O item) {
    if (c == null) {
        return false;
    }/* w w w .jav a 2 s  .  c o m*/

    c.remove(item);
    c.add(item);

    return true;
}

From source file:Main.java

/**
 * Removes and returns an arbitrary element from the collection
 *///ww  w  .j  a  v  a  2 s  . c o m
public static Object removeElement(Collection coll) {
    Object ele = getAnElement(coll);
    coll.remove(ele);
    return ele;
}

From source file:Main.java

/**
 * Removes items from collection/* w  ww.ja  v a  2  s.c  om*/
 * @param <T>
 * @param collection
 * @param items 
 */
public static final <T> void remove(Collection<T> collection, T... items) {
    for (T t : items) {
        collection.remove(t);
    }
}

From source file:Main.java

public static <T> boolean remove(Collection<T> col, T value) {
    if (col == null) {
        return false;
    }/*from   ww  w .ja  va  2s.c  o m*/

    return col.remove(value);
}

From source file:Main.java

public static <T> void removeAll(Collection<T> c, T... items) {
    assert c != null;
    assert items != null;

    for (T item : items) {
        c.remove(item);
    }// ww  w  . j a v a2  s  .co  m
}

From source file:Main.java

public static <T> void cleanNulls(Collection<T> c) {
    Iterator<T> it = c.iterator();
    try {/*  w  ww .  jav a2s. c o  m*/
        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

/**
 * Removes all objects from the specified list.
 *
 * @param collection list to fill//from  w ww .  j a  va 2  s .  co  m
 * @param objects    objects
 * @param <T>        objects type
 * @return true if list changed as the result of this operation, false otherwise
 */
public static <T> boolean removeAll(final Collection<T> collection, final T... objects) {
    boolean result = false;
    for (final T object : objects) {
        result |= collection.remove(object);
    }
    return result;
}

From source file:org.opendatakit.aggregate.odktables.Util.java

/**
 * V must implement equals./*ww  w . j  a va 2 s .  co m*/
 */
public static <V> void assertCollectionSameElements(Collection<V> expected, Collection<V> actual) {
    Collection<V> expectedCopy = new ArrayList<V>(expected);
    Collection<V> actualCopy = new ArrayList<V>(actual);

    for (V item : actualCopy) {
        assertTrue(expectedCopy.remove(item));
    }
    assertTrue(expectedCopy.isEmpty());
}

From source file:Main.java

@SuppressWarnings({ "rawtypes", "unchecked" })
public static <T> Collection<T> substract(Collection<T> oldList, Collection<T> newList,
        java.util.Comparator comparator) {
    Collection<T> result = new ArrayList<T>(oldList);
    for (T oldValue : oldList) {
        for (T newValue : newList) {
            if (comparator.compare(oldValue, newValue) == 0) {
                result.remove(oldValue);
            }/*from w  w  w . j a  v a 2  s  .  c  o  m*/
        }
    }
    return result;
}