JavaAlgorithms/Maths/AbsoluteValue.java
2020-08-23 12:40:30 +08:00

28 lines
618 B
Java

package Maths;
import java.util.Random;
public class AbsoluteValue {
public static void main(String[] args) {
Random random = new Random();
/* test 1000 random numbers */
for (int i = 1; i <= 1000; ++i) {
int randomNumber = random.nextInt();
assert absVal(randomNumber) == Math.abs(randomNumber);
}
}
/**
* If value is less than zero, make value positive.
*
* @param value a number
* @return the absolute value of a number
*/
public static int absVal(int value) {
return value < 0 ? -value : value;
}
}