Java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number: ");
double n = sc.nextDouble();
if (n > 0) {
System.out.println(n + " is Positive");
} else if (n < 0) {
System.out.println(n + " is Negative");
} else {
System.out.println("Number is Zero");
}
sc.close();
}
}Output
Enter a number: -3 -3.0 is Negative
We compare the number with 0 to classify it as positive, negative, or zero.