C-and-C++/C4/Working-With-Structures/English-timed

Time	Narration
00:01	Welcome to the spoken-tutorial on Structures in C and C++.
00:06	In this tutorial we will learn,
00:08	* What is a Structure.
00:10	* Declaration of a structure.
00:13	We will do this through an example.
00:15	To record this tutorial, I am using
00:18	Ubuntu Operating System version 11.04,
00:22	gcc and g++ Compiler version 4.6.1.
00:28	Let us start with an introduction to Structure .
00:31	When one or more variables are grouped under one name, it is known as structure.
00:37	Structure is used to group different data into one object.
00:42	It is called as compound data-type.
00:45	It is used to group related information together.
00:49	Now we will see the syntax to declare a structure.
00:52	Here, the keyword struct tells the compiler that a structure is declared.
00:59	strcut_name is the name of the structure.
01:02	eg. struct employee;
01:04	You can give any name.
01:07	Now we will see how to declare a structure variable.
01:10	The syntax for this is:
01:13	struct struct_name and struct_var;
01:17	struct_var is the variable of type struc_name.
01:21	example, struct employee addr;
01:26	addr is the variable of type employee.
01:30	Let us move on to our example.
01:33	I have already typed the program on the editor. So, let me open it.
01:37	Note that our file name is structure.c.
01:41	In this program we will calculate the total marks of three subjects using structure.
01:48	Let me explain the code now.
01:51	This is our header file.
01:53	Here we have declared a structure as student.
01:57	Then we have declared three integer variables as English, maths and science.
02:03	Variables defined under the structure are called as members of the structure.
02:09	This is our main() function.
02:11	Here we have declared an integer variable 'total'.
02:16	Now we have declared a structure variable stud, stud is the variable of type student, it is used to access and modify the structure members.
02:28	Here we have modified the members
02:31	by assigning them values as 75, 70 and 65.
02:37	Here we calculate the total of three subjects.
02:41	Then we print the result.
02:44	This is our return statement.
02:46	Now click on Save .
02:48	Let us execute the program.
02:50	Please open the terminal window by pressing
02:54	Ctrl, Alt and T keys simultaneously on your keyboard.
02:59	To compile, type gcc space structure.c space hyphen o space struct and press Enter.
03:12	To execute, type (dot slash)./struct. Press Enter.
03:17	The output is displayed as:
03:20	Total is 210
03:22	Now we will execute the same program in C++ .
03:26	Come back to our program.
03:28	I will edit the same code.
03:30	First press Shift, Ctrl and S keys simultaneously on the keyboard.
03:37	Now save the file with an extension .cpp
03:41	and click on save.
03:43	Let's change the header file as iostream.
03:47	Now include the using statement
03:53	and click on save.
03:56	Structure declaration in C++ is same as in C.
04:01	So, no need to change anything here.
04:05	At the end we will replace the printf statement with the cout statement.
04:12	Delete the format specifier and (backslash n) \n.
04:15	Now delete the comma.
04:17	Type two opening angle brackets.
04:20	Here, delete the closing bracket
04:22	and type two opening angle brackets.
04:25	And within the double quotes, type \n (backslash n).
04:29	Now click on Save.
04:31	Let us execute the program.
04:33	Come back to our terminal.
04:35	To compile, type g++ space structure.cpp space hyphen o space struct1 .
04:46	Here we have struct1 because we don't want to overwrite the output parameters struct for the file structure.c .
04:55	Now press Enter.
04:57	To execute, type (dot slash) ./struct1. Press Enter.
05:03	The output is displayed as:
05:05	Total is 210
05:08	You can see that the output is same as our C code.
05:12	Now let us go back to our slides.
05:14	We will summarize now. In this tutorial we learned,
05:18	* Structure
05:19	* Syntax of a structure
05:20	eg. struct struct_name;
05:23	* To access members of a structure.
05:25	Eg: stud.maths = 75;
05:30	* And to add the structure variables.
05:33	Eg: total = stud.eng + stud.maths + stud.science;
05:40	As an assignment,
05:41	write a program to display records of an employee.
05:44	Like name, address, designation, and salary.
05:49	Watch the video available at the link shown below.
05:52	It summarizes the Spoken Tutorial project.
05:54	If you do not have good bandwidth, you can download and watch it.
05:59	The Spoken Tutorial Project Team:
06:01	Conducts workshops using spoken tutorials.
06:04	Gives certificates to those who pass an online test.
06:08	For more details, please write to, contact@spoken-tutorial.org.
06:15	Spoken Tutorial Project is a part of Talk to a Teacher project.
06:18	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
06:25	More information on this mission is available at the link shown below.
06:29	This is Ashwini Patil from IIT Bombay, signing off.
06:33	Thank You for watching.

Contributors and Content Editors

Kavita salve, Krupali, PoojaMoolya, Pratik kamble, Sandhya.np14, Sneha