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