Example usage for java.util Collection contains

Introduction

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

Prototype

boolean contains(Object o);

Source Link

Document

Returns true if this collection contains the specified element.

Usage

From source file:Main.java

private static void extractRemovedEntries(final Collection<String> oldCollection,
        final Collection<String> updatedCollection, final Collection<String> removedEntriesCollection) {
    for (final String string : oldCollection) {
        if (!updatedCollection.contains(string)) {
            removedEntriesCollection.add(string);
        }/*from  www. j  a va2s.c  o m*/
    }
}

From source file:Main.java

public static void removeHightlights(final Collection<Highlighter.HighlightPainter> sample,
        Highlighter highlighter) {
    for (Highlight highlight : highlighter.getHighlights()) {
        if (sample.contains(highlight.getPainter())) {
            highlighter.removeHighlight(highlight);
        }/*  ww w.  j  av  a 2s  . c  om*/
    }

}

From source file:org.zalando.stups.tokens.util.Objects.java

public static <T extends Object> Collection<T> noNullEntries(String name, Collection<T> collection) {
    name = notBlank("name", name);
    collection = notNull(name, collection);
    try {/*from   w ww.ja  v a  2 s.  c o m*/
        if (collection.contains(null)) {
            throw new IllegalArgumentException(name + " should not contain 'null'");
        }
    } catch (NullPointerException e) {
        return collection;
    }
    return collection;
}

From source file:Main.java

public static <T> List<T> intersection(Collection<T> a, Collection<T> b) {
    ArrayList list = new ArrayList();
    Iterator i$ = a.iterator();//from  w w w  .ja  va  2  s . com

    while (i$.hasNext()) {
        Object element = i$.next();
        if (b.contains(element)) {
            list.add(element);
        }
    }

    return list;
}

From source file:Main.java

/**
 * Adds all non-null objects into the specified list.
 *
 * @param collection list to fill//from ww w  . ja va2 s  .  c o  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 addAllNonNull(final Collection<T> collection, final Collection<T> objects) {
    boolean result = false;
    for (final T object : objects) {
        if (!collection.contains(object) && object != null) {
            result |= collection.add(object);
        }
    }
    return result;
}

From source file:Main.java

public static Collection rightDifference(final Collection c1, final Collection c2) {
    final List result = new ArrayList();
    final Object[] members_c1 = c1.toArray();
    for (int i = 0; i < members_c1.length; i++) {
        if (!c2.contains(members_c1[i])) {
            result.add(members_c1[i]);//  ww  w .j av  a2s .c  om
        }
    }
    return result;
}

From source file:Main.java

/**
 * Check whether the given element is contained in the given scopes.
 *
 * @param element element to checking//w  ww . ja  v a 2  s .  c  om
 * @param scopes  scopes to checking element
 * @param <T>     element type
 * @return checking result.
 */
public static <T> boolean contains(T element, Collection<T> scopes) {
    Assert.notNull(element, "Element to checking must not be null.");
    Assert.notNull(scopes, "Checking scopes must not be null.");
    return scopes.contains(element);
}

From source file:Main.java

public static <T> Set<T> intersection(Collection<? extends T> c1, Collection<? extends T> c2) {
    Set<T> result = new HashSet<T>();
    for (Iterator<? extends T> it = c1.iterator(); it.hasNext();) {
        T element = it.next();/*  www.j a v a2s  .c o m*/
        if (c2.contains(element))
            result.add(element);
    }
    return result;
}

From source file:Main.java

/**
 * the intersection of two collections./*from w  ww . jav a2s  .  c om*/
 * 
 * @param c1
 *            collection1.
 * @param c2
 *            collection2.
 * @return the intersection, i.e. all elements that are in both collections.
 * @since 0.1
 */
public static Collection intersection(final Collection c1, final Collection c2) {
    final List list = new ArrayList();
    final Object[] members_c1 = c1.toArray();
    for (int i = 0; i < members_c1.length; i++) {
        if (c2.contains(members_c1[i])) {
            list.add(members_c1[i]);
        }
    }
    return list;
}

From source file:Main.java

public static Collection intersection(Collection a, Collection b)

{

    Collection results = new HashSet();

    for (Iterator i = a.iterator(); i.hasNext();) {

        Object o = i.next();//  ww w .  j  ava 2  s .  c om

        if (b.contains(o)) {

            results.add(o);

        }

    }

    return results;

}