Java List First Item getOnlyFirst(List obj)

Description

get Only First

License

Apache License

Declaration

public static Object getOnlyFirst(List<?> obj) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2009 Time Space Map, LLC/*w  w w. j av  a2s .  c o m*/
 * 
 * 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 Object getOnlyFirst(List<?> obj) {
        if (obj.size() == 1) {
            return obj.get(0);
        } else {
            return null;
        }
    }
}

Related

1. getFirstValueString(List