Java Collection Sum sum(final Collection values)

Description

Sums the values in the collection.

License

Open Source License

Parameter

Parameter	Description
values	a parameter

Exception

Parameter	Description
Exception	an exception

Declaration

public static int sum(final Collection<Integer> values) throws Exception 

Method Source Code

//package com.java2s;
/*/*from   w w w. java2  s  . c  om*/
 * Copyright (c) 2015 Christopher Ritchie
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to 
 * deal in the Software without restriction, including without limitation the 
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 
 * sell copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */

import java.util.Collection;

public class Main {
    /**
     * Sums the values in the collection.
     * @param values
     * @return
     * @throws Exception
     */
    public static int sum(final Collection<Integer> values) throws Exception {
        int sum = 0;

        for (Integer operand : values) {
            if (Integer.MAX_VALUE - sum < operand) {
                throw new Exception("Overflow.");
            }
            sum += operand;
        }
        return sum;
    }
}

Related

1. sum(Collection values)
2. sum(Collection values)
3. sum(Collection vec)
4. sum(Collection values)
5. sum(Collection collection)
6. sumDouble(Collection collection)
7. summarizeCollection(Collection collection, String collectionType, String elementType)
8. sumNumberCollection(Collection numbers)