package Maths; /** * https://en.wikipedia.org/wiki/Cube_(algebra) */ public class PerfectCube { public static void main(String[] args) { assert !isPerfectCube(-1); assert isPerfectCube(0); assert isPerfectCube(1); assert !isPerfectCube(4); assert isPerfectCube(8); assert isPerfectCube(27); } /** * Check if a number is perfect cube or not * * @param number number to check * @return {@code true} if {@code number} is perfect cube, otherwise {@code false} */ public static boolean isPerfectCube(int number) { int a = (int) Math.pow(number, 1.0 / 3); return a * a * a == number; } }