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I did not understand why num1 & num2 gives us 0. Please could you explain that?

Basically, in bitwise operations, we look at each individual bit rather than the whole binary representation of the number.

Let’s come to the code.

num1 = 01010 and num2 = 10100

The & operator represents the logical AND which means 1&0 would be 0.

num1 & num2 means that the AND operation will be performed between their bits:
01010
10100

Let’s start from the right side:

01010
10100
0&0 is 0.

01010
10100
1&0 is 0.

01010
10100
0&1 is 0

And so forth. The answer ultimately ends up being 0.

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Can you explain bitwise not with example??

First, let’s note that all numbers are made up of bits (0s and 1s).

Bitwise refers to operations on the actual bits representing a value. That’s the simplest definition.

A bitwise AND and OR operation occurs between two numbers. Pairs will be made consisting of one bit from the first number and one from the second. Then the AND/OR operation will be performed on this pair. This will be done for all pairs.

A bitwise NOT will just perform the NOT operation on every bit of the number.