check positive or negative number in java | codeYourslf| #cy

I always do coding in mobile, today I am going to explain how you can easily write a java programming to check whether a number is positive or negative.

👉 To check whether a number is positive or negative, first of all we have to be clear about how to know a number is positive or negative

Then see...

check positive or negative number in java | codeYourslf| #cy

Source code of the program

 
package CodeYourslf.BasicProgram;

import java.util.Scanner;

public class checkForPositiveOrNegative {

  public static void main(String args[]) {

    int num;

    Scanner sc = new Scanner(System.in);

    System.out.println("Enter the number to check positive or negative");

    num = sc.nextInt();

    if (num > 0) {

      System.out.println("The number is positive");

    } else {

      System.out.println("The number is negative");

    }

  }

}

Output:-

If a number is greater than 0 (num > 0), then we can say the number is positive.

Otherwise the number will be negative, I mean if the given number is less than 0 it will called as negative number(num < 0).

How to code in mobile to check positive or negative of a number in java :-

As I have mentioned above that if the number is greater than 0, then the number is positive. Now if we can able to put a condition that will show the number is greater or lesser than 0, then we can easily determine whether the number is positive or negative.

- Now in java we have greater operator (>) by using that operator we can easily determine, a given number is positive or not.

see...

num > 0 return positive.

num < 0 return negative

- To perform this method in java, we have if else statement. By the help of if else we can easily check whether a number is positive or negative.

Which app I use to code in mobile :-

👉 To code every java problem in mobile, I use 'Java N-IDE' , here also I use this android IDE to code in mobile for the java programming problem i.e how to check whether a number is positive or negative.

Here is the code that I have written in mobile by using 'Java N-IDE' :-

Code Explanation that I have written in mobile phone :-

Step-1

First I create a class i.e
public class checkForPositiveOrNegativs

Step-2

Now I will create the main method i.e
public static void main(String args[]);

Step-3

Inside the main method I have to declare a variable of interger type to store the number that will give the user i.e
int num;

Step-4

Now time to receive user input of interger type, so we have to import Scanner class and have to create a object to that Scanner class i.e
import java.util.Scanner;
Scanner sc = new Scanner(System.in);

Step-5

Now inside if block we have to check the condition i.s " num > 0 ", if this condition satisfy, then we have to show this number is positive or otherwise negative.

if (num > 0) {
System.out.println("The number is positive");
}

else{
System.out.println("The number is negative");
}

Also Read:-

Plankalkül : World first programming language :- click here
How receive user input in java :- click here

👉 We everyone knows that in if else condition if one condition satisfy then the program doesn't enter to another block, I mean if the here if condition satisfy then the program will execute the part " The number is positive". Otherwise it will execute the part "The number is negative" .

codeYourslf