TheAlgorithms-Java/Maths/Median.java at master · windNight/TheAlgorithms-Java · GitHub

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package Maths;

import java.util.Arrays;

/** Wikipedia: https://en.wikipedia.org/wiki/Median */

public class Median {

public static void main(String[] args) {

assert median(new int[] {0}) == 0;

assert median(new int[] {1, 2}) == 1.5;

assert median(new int[] {4, 1, 3, 2}) == 2.5;

assert median(new int[] {1, 3, 3, 6, 7, 8, 9}) == 6;

assert median(new int[] {1, 2, 3, 4, 5, 6, 8, 9}) == 4.5;

}

/**

* Calculate average median

* @param values number series

* @return median of given {@code values}

public static double median(int[] values) {

Arrays.sort(values);

int length = values.length;

return length % 2 == 0

? (values[length / 2] + values[length / 2 - 1]) / 2.0

: values[length / 2];

}

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