Java Collection Empty isEmpty(Collection c)

Description

is Empty

License

Apache License

Declaration

public static <T> boolean isEmpty(Collection<T> c) 

Method Source Code

//package com.java2s;
/**/*from   www.j a  va  2 s.  co  m*/
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.Collection;
import java.util.Iterator;

public class Main {
    public static <T> boolean isEmpty(Collection<T> c) {
        if (c == null || c.size() == 0) {
            return true;
        }
        for (Iterator<T> iter = c.iterator(); iter.hasNext();) {
            if (iter.next() != null) {
                return false;
            }
        }
        return true;
    }
}

Related

1. isEmpty(Collection values)
2. isEmpty(Collection c)
3. isEmpty(Collection data)
4. isEmpty(Collection