Java Collection Subtract subtractCollections(Collection collection1, Collection collection2)

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Description

Returns all items in collection1 that are not in collection2

License

Open Source License

Declaration 

public static <T> Collection<T> subtractCollections(Collection<? extends T> collection1,
        Collection<? extends T> collection2)

Method Source Code


//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;
import java.util.Collection;

public class Main {
    /**/*from  w w w. j a v a2s . co m*/
     * Returns all items in collection1 that are not in collection2
     */
    public static <T> Collection<T> subtractCollections(Collection<? extends T> collection1,
            Collection<? extends T> collection2) {
        Collection<T> result = new ArrayList<T>(collection1);
        result.removeAll(collection2);
        return result;
    }
}

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  4. subtract(final Collection a, final Collection b)
  5. subtract(final Collection a, final Collection b)