Java List Single Value singleValue(List values)

Description

single Value

License

Apache License

Declaration

public static <T> T singleValue(List<T> values) 

Method Source Code

//package com.java2s;
/**/*w w  w.j av a  2 s .co m*/
 * Copyright 2013-2015 Pierre Merienne
 *
 * 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.
 */

import java.util.List;

public class Main {
    public static <T> T singleValue(List<T> values) {
        return values == null || values.isEmpty() ? null : values.get(0);
    }
}

Related

1. singletonList(final T source)
2. singletonList(T element)
3. singletonListIfNotNullOrEmptyListIfNull(T element)
4. singleValue(Class type, List values)
5. singleValue(List l)