Java/Maths/Ceil.java at master · iDev-git/Java · GitHub

Repository navigation

package Maths;

import java.util.Random;

public class Ceil {

public static void main(String[] args) {

Random random = new Random();

for (int i = 1; i <= 1000; ++i) {

double randomNumber = random.nextDouble();

assert ceil(randomNumber) == Math.ceil(randomNumber);

}

/**

* Returns the smallest (closest to negative infinity)

* @param number the number

* @return the smallest (closest to negative infinity) of given {@code number}

public static double ceil(double number) {

if (number - (int) number == 0) {

return number;

} else if (number - (int) number > 0) {

return (int) (number + 1);

} else {

return (int) number;

}