Java Collection to Array asLongArray(java.util.Collection c)

Description

Returns 'c' as a long array.

License

Open Source License

Declaration

public static long[] asLongArray(java.util.Collection<? extends Number> c) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (C) 2006-2013 AITIA International, Inc.
 * //from   w ww . j  av  a 2 s  .c o m
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

public class Main {
    /** Returns 'c' as a long array. */
    public static long[] asLongArray(java.util.Collection<? extends Number> c) {
        int i = 0, n = (c == null) ? 0 : c.size();
        long[] ans = new long[n];
        if (n > 0)
            for (Number nr : c)
                ans[i++] = nr.longValue();
        return ans;
    }
}

Related

1. asArray(Collection c)
2. asArray(Collection collection, E[] a)
3. asBooleanArray(Collection collection)
4. asLongArray(final Collection ls)
5. collectionToArray(Collection collection)
6. collectionToIntArray(Collection c)
7. collectionToIntArray(final Collection numbers)
8. collectionToObjectArray(Collection c)