# Python Program to Get nth Bit of a Number

In the previous article, we have discussed Program to Find All Non Repeated Characters in a String

Given a number and the bit position, the task is to get the bit that is present at that position (in the binary representation of a number).

Bitwise & Operator:

If both bits are 1, sets each bit to 1.

Examples:

Example1:

Input:

Given Number = 2
Bit position(in range 0-31)= 0

Output:

The bit present at the given position{ 0 } for a given number is 0

Example2:

Input:

Given Number = 14
Bit position(in range 0-31)= 3

Output:

The bit present at the given position{ 3 } for a given number is 1

## Program to Get nth Bit of a Number in Python

Below are the ways to get the bit that is present at that position (in the binary representation of a number) in python:

### Method #1: Using Bitwise &(and) Operator (Static Input)

Approach:

• Give the number as static input and store it in a variable.
• Give the bit position that you need to get the bit value at that position as static input and store it in another variable.
• Apply the left shift operator to 1 and the above-given bit position and store it in another variable.
• Apply bitwise & operation for the given number and the above result and store it in another variable say bit_val.
• Check if the above result bit_val is greater than 0 using the if conditional statement.
• If the statement is true, then print “The bit present at the given position for a given number is 1”.
• Else print “The bit present at the given position for a given number is 0”.
• The Exit of the Program.

Note: ‘0’ indexing .Give the bit position in range(0-31).

Below is the implementation:

# Give the number as static input and store it in a variable.
gvn_numb = 2
# Give the bit position that you need to get the bit value at that position as static input
# and store it in another variable.
bitpositin = 0
# Apply the left shift operator to 1 and the above-given bit position and
# store it in another variable.
numbr_bit = (1 << bitpositin)
# Apply bitwise & operation for the given number and the above result and
# store it in another variable say bit_val.
bit_val = gvn_numb & numbr_bit
# Check if the above result bit_val is greater than 0 using the if conditional statement.
if (bit_val > 0):
# If the statement is true, then print "The bit present at the given position is 1".
print(
"The bit present at the given position{", bitpositin, "} for a given number is 1")
else:
# Else print "The bit present at the given position is 0".
print(
"The bit present at the given position{", bitpositin, "} for a given number is 0")

Output:

The bit present at the given position{ 0 } for a given number is 0

### Method #2: Using Bitwise &(and) Operator (User Input)

Approach:

• Give the number as user input using the int(input()) function and store it in a variable.
• Give the bit position that you need to get the bit value at that position as user input using the int(input()) function and store it in another variable.
• Apply the left shift operator to 1 and the above-given bit position and store it in another variable.
• Apply bitwise & operation for the given number and the above result and store it in another variable say bit_val.
• Check if the above result bit_val is greater than 0 using the if conditional statement.
• If the statement is true, then print “The bit present at the given position for a given number is 1”.
• Else print “The bit present at the given position for a given number is 0”.
• The Exit of the Program.

Below is the implementation:

# Give the number as user input using the int(input()) function and
# store it in a variable.
gvn_numb = int(input("Enter some random number = "))
# Give the bit position that you need to get the bit value at that position as user input
# using the int(input()) function and store it in another variable.
bitpositin = int(input("Enter some random number = "))
# Apply the left shift operator to 1 and the above-given bit position and
# store it in another variable.
numbr_bit = (1 << bitpositin)
# Apply bitwise & operation for the given number and the above result and
# store it in another variable say bit_val.
bit_val = gvn_numb & numbr_bit
# Check if the above result bit_val is greater than 0 using the if conditional statement.
if (bit_val > 0):
# If the statement is true, then print "The bit present at the given position is 1".
print(
"The bit present at the given position{", bitpositin, "} for a given number is 1")
else:
# Else print "The bit present at the given position is 0".
print(
"The bit present at the given position{", bitpositin, "} for a given number is 0")

Output:

Enter some random number = 14
Enter some random number = 3
The bit present at the given position{ 3 } for a given number is 1

If you wanna write simple python programs as a part of your coding practice refer to numerous Simple Python Program Examples existing and learn the approach used.