C Programming – Features & The First C
Program
Most important features of C programming were Portability and less lines of code. Have you
ever wondered why a company like Google for example has separate departments for carrying
out different tasks for the same job ? If the job is to develop a software, then there might be a
separate department for requirement analysis, a separate. department for. requirement analysis or
design phase. This is the distinction between High level. language and low level language.
Abstraction means hiding system level details. Therefore, high degree of abstraction means less
efforts to the user. C language is called middle level language because it makes programming
simpler for human beings. On the other hand it also allows us to access system level features
such as Direct access to memory through pointers and Bit manipulation using bitwise operators.
This makes programming a cake walk for programmers and that is obviously a great advantage. I
would recommend you to download Code Blocks IDE to execute code on your own. Code
Blocks is an integrated development environment that helps you in creating C programs
efficiently. C function consists of group of statements intended to solve a particular problem. On
the other hand variables are the entities used to store values which are used during computation.
Compiler actually look forward to this particular function and it is the starting point of your
program. # include simply requests processors to include the file stdio. h.
The last statement that I have written here is , return 0 It indicates that if your statements
complete execution successfully , then return integer 0 and exit from the function. After the
name of the function, you can see some lists of parameters which are enclosed within the round
brackets. These are called the inputs to your function. In our example, main function does n't
have any parameters. It is mostly defined like that way. But if you want , you can add parameters
arcc and arcv whose values is been provided at run time using command line arguments. Build
and Run are required for the execution of your code. Build asks the. compiler to build the
machine code for the source code we had written. And Run simply runs the code and produces
the output. If you are not making any changes to the code, then you have to build it again and
Run. Neso Academy is printed. Make these changes to the code and see what happens. Please
make the changes one by one and not all at the same time. Comment out the # include. Remove
the semicolon after printf. Remove int return type from main. Instead of 0 in return write any
integer value you want. Replace 0 with some character. Characters are usually written with
single quotes.
Introduction to Variables
we are going to talk about variables in C programming. In reality,
variables are simply names that points to some memory location.
You must have to declare variables before using it in your program.
Declaration simple means announcing the properties of the variable
to the compiler. Definition of a variable means allocating memory to
, a variable. A variable in its pronunciation has word vary. Something
that can vary over time. On the other hand constant is just the
opposite. once defined will never change. If you want the value to
be changed somewhere, then you can do that. You can also assign
variable to a variable instead of this constant value 3 or 4. All these
variables are of integer type. Instead of defining and declaring in
different lines it is better to write them down in a single line. There
are three different variables var1 var2 var3. Because all of them has
been assigned to the same value 4 that is why we are getting three
values of 4 in the output.
Variable Naming Conventions
C programming is not the case that everything is allowed
in C programming as we want. studying naming
conventions is equally important name of a variable is
composed of letters or maybe combination of letters both
uppercase and lowercase and digits rules for naming
variables are as follows you can not start your variable
name with a digit. See you in the next lecture [ ] [ Music ]
for more of your knowledge of programming languages.
Use these long names in your code to make your programs
look good and use them later in your program. Use the
long names again and again in code whenever you want to
use them that's it for now.
Basic Output Function – printf
Program
Most important features of C programming were Portability and less lines of code. Have you
ever wondered why a company like Google for example has separate departments for carrying
out different tasks for the same job ? If the job is to develop a software, then there might be a
separate department for requirement analysis, a separate. department for. requirement analysis or
design phase. This is the distinction between High level. language and low level language.
Abstraction means hiding system level details. Therefore, high degree of abstraction means less
efforts to the user. C language is called middle level language because it makes programming
simpler for human beings. On the other hand it also allows us to access system level features
such as Direct access to memory through pointers and Bit manipulation using bitwise operators.
This makes programming a cake walk for programmers and that is obviously a great advantage. I
would recommend you to download Code Blocks IDE to execute code on your own. Code
Blocks is an integrated development environment that helps you in creating C programs
efficiently. C function consists of group of statements intended to solve a particular problem. On
the other hand variables are the entities used to store values which are used during computation.
Compiler actually look forward to this particular function and it is the starting point of your
program. # include simply requests processors to include the file stdio. h.
The last statement that I have written here is , return 0 It indicates that if your statements
complete execution successfully , then return integer 0 and exit from the function. After the
name of the function, you can see some lists of parameters which are enclosed within the round
brackets. These are called the inputs to your function. In our example, main function does n't
have any parameters. It is mostly defined like that way. But if you want , you can add parameters
arcc and arcv whose values is been provided at run time using command line arguments. Build
and Run are required for the execution of your code. Build asks the. compiler to build the
machine code for the source code we had written. And Run simply runs the code and produces
the output. If you are not making any changes to the code, then you have to build it again and
Run. Neso Academy is printed. Make these changes to the code and see what happens. Please
make the changes one by one and not all at the same time. Comment out the # include. Remove
the semicolon after printf. Remove int return type from main. Instead of 0 in return write any
integer value you want. Replace 0 with some character. Characters are usually written with
single quotes.
Introduction to Variables
we are going to talk about variables in C programming. In reality,
variables are simply names that points to some memory location.
You must have to declare variables before using it in your program.
Declaration simple means announcing the properties of the variable
to the compiler. Definition of a variable means allocating memory to
, a variable. A variable in its pronunciation has word vary. Something
that can vary over time. On the other hand constant is just the
opposite. once defined will never change. If you want the value to
be changed somewhere, then you can do that. You can also assign
variable to a variable instead of this constant value 3 or 4. All these
variables are of integer type. Instead of defining and declaring in
different lines it is better to write them down in a single line. There
are three different variables var1 var2 var3. Because all of them has
been assigned to the same value 4 that is why we are getting three
values of 4 in the output.
Variable Naming Conventions
C programming is not the case that everything is allowed
in C programming as we want. studying naming
conventions is equally important name of a variable is
composed of letters or maybe combination of letters both
uppercase and lowercase and digits rules for naming
variables are as follows you can not start your variable
name with a digit. See you in the next lecture [ ] [ Music ]
for more of your knowledge of programming languages.
Use these long names in your code to make your programs
look good and use them later in your program. Use the
long names again and again in code whenever you want to
use them that's it for now.
Basic Output Function – printf
