29 lines
806 B
Java
29 lines
806 B
Java
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];
|
|
}
|
|
}
|