Java mean mean(final int[] scores)

Description

mean

License

Apache License

Declaration

public static float mean(final int[] scores) 

Method Source Code

//package com.java2s;
/*// w w w .j a  v a2 s. com
 * @(#)$Id$
 *
 * Copyright 2006-2008 Makoto YUI
 *
 * 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.
 * 
 * Contributors:
 *     Makoto YUI - initial implementation
 */

public class Main {
    public static float mean(final int[] scores) {
        if (scores.length == 0) {
            return -1f;
        }
        long total = 0L;
        for (int s : scores) {
            total += s;
        }
        return total / scores.length;
    }

    public static double mean(final long[] scores) {
        if (scores.length == 0) {
            return -1d;
        }
        long total = 0L;
        for (long s : scores) {
            total += s;
        }
        return total / scores.length;
    }
}

Related

1. mean(final double[] data, final boolean noNaN)
2. mean(final double[] expected, final int begin, final int end)
3. mean(final double[] in, final int start, final int stop)
4. mean(final double[] values)
5. mean(final double[] vec)
6. mean(final int[] values)
7. mean(float a, float b)
8. mean(float[] a, int off, int length)
9. mean(float[] arr)