PYTHON CODE FOR ADDING TWO NUMBERS

 

PYTHON CODE FOR ADDING TWO NUMBERS

Variables works like containers in computer memory that can be used to store values. Variable's name is a label for that memory location (container). Variables can store different values, but one at a time. it's value can be changed during the program execution.

In Python, a variable does not need to be declared before assigning a value to it. We don't need to specify the datatype of a variable, they can allocate memory space based on the type of value which will be assigned to it.

Assignment operator is used to store value in a variable. Variable must be on the left hand side of the operator. The value of the right hand side of the assignment operator is assigned to the left hand side variable of the operator.

The following statement will create a variable (container) with the name “num”. It stores the value 10 which is assigned to “num” variable using assignment (=) operator.

num=10 

Here, 10 is an integer value which is assigned into num. So, num is an int type variable.

type() is a built-in function and it returns the type of given object.

type(num)   This statement will return an int.

We can assign single value to multiple variables

num1=num2=num3=10

Here, the variable num1, num2 and num3 stores the integer value 10

We can also assign multiple value to multiple variables

num1, num2, num3=10, 5, 9

Here, integer values 10, 5 and 9 are stored into num1, num2 and num3 respectively.

Python supports different types of data types such as numeric, string, list, boolean etc. The int, float and complex are numeric data types.

Output data can be displayed to the standard output device like monitor from the computer memory using the built-in function print().

Python code for adding two numbers

# 5 is assigned to num1, num1 is an integer variable
num1=5                

# 10 is assigned to num2, num2 is an integer variable
num2=10             

         

# the result of num1 + num2 is also an int value which is stored into sum

sum=num1+num2

#print() display the value of sum to the screen

print(sum)           

User input data can be entered into the computer memory from standard input device like keyboard. Python uses a built-in function “input()” to take user input from keyboard or other input devices. It always returns a string. If we want a numeric type, then we need to convert the string to the int value using the built-in function int().

Python code for adding two numbers by user input

Example 1

#take an input from user and assigned it into num1

num1=input("Enter 1st number:") 

#take an input from user and assigned it into num2

num2=input("Enter 2nd number:")           

#convert string into int datatype using the function int() and the result of num1 + num2 is also an int value which is stored into sum

sum = int(num1) + int(num2)            

print("Sum =", sum)

Example 2

#convert string into int datatype using the function int() at the time of user input

num1=int(input("Enter 1st number:"))

num2=int(input("Enter 2nd number:"))

sum = num1 + num2

print(“Sum=”, sum)