29 lines
806 B
Java
29 lines
806 B
Java
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package Maths;
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import java.util.Arrays;
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/**
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* Wikipedia: https://en.wikipedia.org/wiki/Median
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*/
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public class Median {
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public static void main(String[] args) {
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assert median(new int[]{0}) == 0;
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assert median(new int[]{1, 2}) == 1.5;
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assert median(new int[]{4, 1, 3, 2}) == 2.5;
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assert median(new int[]{1, 3, 3, 6, 7, 8, 9}) == 6;
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assert median(new int[]{1, 2, 3, 4, 5, 6, 8, 9}) == 4.5;
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}
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/**
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* Calculate average median
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*
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* @param values number series
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* @return median of given {@code values}
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*/
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public static double median(int[] values) {
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Arrays.sort(values);
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int length = values.length;
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return length % 2 == 0 ? (values[length / 2] + values[length / 2 - 1]) / 2.0 : values[length / 2];
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}
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}
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