This method returns true if set A is a subset of set B i.e. - Android java.util

Android examples for java.util:Set

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Description

This method returns true if set A is a subset of set B i.e.

Demo Code

/*//www.  j a va  2 s .  c om
 * Copyright 2002-2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.book2s;
import java.util.*;

public class Main {
    /**
     * This method returns true if set A is a subset of set B
     * i.e. it answers the question if all items in A exists in B
     * @param setA set A
     * @param setB set B
     * @param <T> type
     * @return {@code boolean} true if A is a subset of B
     */
    public static <T> boolean isSubset(Set<T> setA, Set<T> setB) {
        return setB.containsAll(setA);
    }
}

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