Python program to check whether a number is Positive or Negative or Zero

Python program to check whether a number is Positive or Negative or Zero

problem – Python program to check whether a number is Positive or Negative or Zero

In this tutorial, we will discuss a concept in Python  program to check whether a number is Positive or Negative or Zero

In this post, we will learn how to check if the number is positive or negative or zero in Python programming language

 

The logic of the program

If a number is greater than zero it is a positive number – (if the number>=0)

If a number is less than to zero it is a Negative number – (if the number<=0)

Otherwise, if the number is equal to zero the number is zero – (if the number==0)

 

Using if elif statements

Program 1

This program allows the user to enter a number and check if the number(entered by the user) is positive or negative or zero using if elif statements

number=int(input("Enter the value of number: "))
if number>0:
    print("The number is positive")
elif number==0:
    print("The number is zero")
else:
    print("The number is Negative")

When the above code is executed, it produces the following results

case 1

Enter the value of number: 25
The number is positive

 

case 2

Enter the value of number: -10
The number is Negative

 

case 3

Enter the value of number: 0
The number is zero

 

 

Using Nested if  statements

Program 2

This program allows the user to enter a number and check if the number(entered by the user) is positive or negative or zero using Nested if  statements

number=int(input("Enter the value for number: "))
if number>=0:
    if number==0:
         print("The number is zero")
    else:
         print("The number is positive")
else:
    print("The number is Negative")

When the above code is executed, it produces the following results

Case 1

Enter the value for number: 12
The number is positive

case 2

Enter the value for number: -15
The number is Negative

case 3

Enter the value for number: 0
The number is zero

 

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