Java program to check if number is positive or negative

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// the number which is greater that 0 is positive
		// the number which is less than 0 is negative
		// the number which is equal to 0 is 0
		
		Scanner s = new Scanner(System.in);
		System.out.println("Enter a number:");
		double number = s.nextDouble();
		if(number < 0.0) {
			System.out.println(number + " is a negative number");
		}
		else if(number > 0.0) {
			System.out.println(number + " is a positive number");
		}
		else {
			System.out.println(number + " is zero");
		}
	}

}