EN
Java - Math.min() with multiple arguments
7 points
In this short article, we would like to show a simple Java alternative Math.min() function implementation that lets to pass multiple arguments and returns a minimum value (pass more than 2 arguments).
Practical example:
xxxxxxxxxx1
import java.util.Comparator;2
3
public class Program {4
5
private static <T> T findMin(Comparator<T> comparator, T... values) {6
if (values.length == 0) {7
return null;8
}9
T result = values[0];10
for (int i = 1; i < values.length; ++i) {11
T value = values[i];12
int order = comparator.compare(value, result);13
if (order < 0) {14
result = value;15
}16
}17
return result;18
}19
20
21
// Usage example:22
23
public static void main(String[] args) {24
25
System.out.println(findMin(Integer::compare, 5, 4, 3, 2 )); // 226
System.out.println(findMin(Long::compare, 5L, 4L, 3L, 2L, 1L)); // 127
28
System.out.println(findMin(Float::compare, 3.0f, 2.0f, 1.0f, 0.0f )); // 0.029
System.out.println(findMin(Double::compare, 3.0, 2.0, 1.0, 0.0, -1.0)); // -1.030
31
System.out.println(findMin(Byte::compare, (byte) 5, (byte) 4 )); // 432
System.out.println(findMin(Short::compare, (short) 5, (short) 4, (short) 3)); // 333
}34
}Output:
xxxxxxxxxx1
42
33
24
15
0.06
-1.0