C++ Variables

     Helloo.. My favorite blog readers.. Welcome to the newest post from ispire++ blog. This post is the next post of our fundamental of programming post series . So don't get confused this with our new post series OOP.
     I gave you some homeworks in my last post. Did you do those. Well if you did here are the answers for them.

Last posts Homework answers ;)

So... last week I promised you to start to talk about c++ variables. Here lets start it. Variables are a kind of structure we use to hold data in a program. 
     We know that when we run a program, it runs on our RAM.(Random Access Memory) . In a program, when we want to store some data(Temporarily, Not on hard disk), We create variables. 
      For example, let say we want to store the age of a person. What we have to do is create a variable to hold that data age of a person. Age is measured by years, so it is we can consider as an integer value. So what exactly we want to do here is, create a variable to hold an integer data. And store our data (age) in it. 
How do we do this.
     We want an integer variable, so we type int first,
     Then we put a space, and then we type a suitable name for the variable, ie:- age.
Ok, and finally as always we type semicolon ; . Right! We now have officially created the first variable we ever created in c++. Weldone guys.. :) 

     
     Ok.. now after we created the variable, lets store something in it. In this example age. Let say the age of the person is 23. So what we do is , in a new line we type the name of our variable, age , and then we type equal sign(in c++ it is known as assignment operator) after that we type the value we want 23 and finally semicolon;. 
     Congratulations you have assigned a value to your variable. Now let's check the variable. In a new line let's start a code to print the value. Type, cout<<age; and build and run your program.

     See the output! It says 23 right!! That's the value we assigned to our variable. See how easy to create variables, assign values to them and use them!! 

     Now I want you to create 5 variables about 5 subjects of a student naming English, Programming, Drawing, Electrical, Fluid. And assign the marks values as follows 80, 83, 75, 80, 60. And then in your program write a code to take them as output. Do this as a homework I'll give you the answers in our next post. 
     Ok.. here I end up this post. Hoping to see you in my next post soon.. Bye..!! :)

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