Learn Programming Technique C to Master Skills - Use of & sign with variables - video Dailymotion

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Transcript

00:00Hello everyone. This is Sandeep. Today I am going to explain that why we use

00:09ampersand sign or you can say the and sign with the variables when we have to

00:15input something from the keyboard and that is going to store inside the

00:20variables. So inside the scanf function we use ampersand sign or you can say

00:27the and sign with the variables. So what is the reason behind it. So I am going to

00:33explain this thing with one of the realistic approach example and the

00:37things will be clear to all of you. Let me explain. Suppose this person has to go

00:45to a particular location. So what he has to do the first thing which he has to do

00:52is to read the address of that location. So he is going to read the address from

00:58his address book. Once he will get the address of that location this person

01:03will go to that particular location. He will reach the destination. Now the same

01:09methodology the same architecture is there in programming in C programming

01:14also. The and represent address of A. The and or you can say the ampersand

01:22represent the address of B. So what it is indicating it's indicating to the

01:28compiler that first go and see the address of A and address of B then take

01:35the value which is input from the keyboard and store inside A variable and

01:41B variable. So and represent to the address to the address of A and address

01:47of B. So first to read the address, reach the location and then store the value

01:54inside it. I hope you understand. In the next video I will explain something else.

01:59Bye