Introduction

In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..

import java.util.Scanner;
public class JavaExcercise {
 
 
  public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Input number: ");
        int num = in.nextInt();
 
        if (num > 0)
        {
            System.out.println("Number is positive");
        }
        else if (num < 0)
        {
            System.out.println("Number is negative");
        }
        else
        {
            System.out.println("Number is zero");
        }
    }
}

Result