Difference between revisions of "C-and-C++/C4/Working-With-Structures/English-timed"
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| 00.01 | | 00.01 | ||
− | |Welcome to the spoken-tutorial on Structures in C and C++. | + | |Welcome to the spoken-tutorial on '''Structures''' in '''C and C++'''. |
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| 00.08 | | 00.08 | ||
− | |What is a Structure. | + | |What is a '''Structure. ''' |
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| 00.10 | | 00.10 | ||
− | |Declaration of a structure | + | |Declaration of a '''structure''' |
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| 00.18 | | 00.18 | ||
− | |Ubuntu Operating System version 11.04, | + | |'''Ubuntu Operating System ''' version '''11.04''', |
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| 00.22 | | 00.22 | ||
− | | gcc and g++ Compiler version 4.6.1 | + | | '''gcc '''and '''g++ Compiler''' version 4.6.1 |
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| 00.28 | | 00.28 | ||
− | |Let us start with an introduction to Structure | + | |Let us start with an introduction to '''Structure ''' |
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|00.31 | |00.31 | ||
− | |When one or more variables are grouped under one name it is known as structure. | + | |When one or more variables are grouped under one name it is known as '''structure.''' |
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|00.42 | |00.42 | ||
− | |It is called as compound data-type. | + | |It is called as '''compound data-type.''' |
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| 00.49 | | 00.49 | ||
− | | Now we will see the syntax to declare a structure | + | | Now we will see the syntax to declare a '''structure''' |
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| 00.52 | | 00.52 | ||
− | |Here the keyword struct tells the compiler that a structure is declared | + | |Here the keyword '''struct''' tells the compiler that a structure is declared |
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| 00.59 | | 00.59 | ||
− | |strcut_name is the name of the structure. | + | |'''strcut_name''' is the name of the '''structure.''' |
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| 01.02 | | 01.02 | ||
− | |eg. struct employee; | + | |eg. '''struct employee; ''' |
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| 01.07 | | 01.07 | ||
− | |Now we will see how to declare a structure variable. | + | |Now we will see how to declare a '''structure variable. ''' |
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| 01.13 | | 01.13 | ||
− | |struct struct_name and struct_var; | + | |'''struct struct_name and struct_var; ''' |
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| 01.17 | | 01.17 | ||
− | |struct_var is the variable of type struc_name | + | |'''struct_var''' is the variable of type '''struc_name''' |
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| 01.21 | | 01.21 | ||
− | |example, struct employee addr; | + | |example, '''struct employee addr; ''' |
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| 01.26 | | 01.26 | ||
− | |addr is the variable of type employee. | + | |'''addr''' is the '''variable''' of type '''employee. ''' |
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|01.37 | |01.37 | ||
− | |Note that our filename is structure.c. | + | |Note that our filename is '''structure.c.''' |
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| 01.53 | | 01.53 | ||
− | |Here we have declared a structure as student. | + | |Here we have declared a '''structure''' as '''student.''' |
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| 01.57 | | 01.57 | ||
− | | Then we have declared three integer variables as english, maths and science. | + | | Then we have declared three integer variables as '''english, maths''' and '''science. ''' |
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| 02.11 | | 02.11 | ||
− | | Here we have declared an integer variable total. | + | | Here we have declared an integer variable '''total. ''' |
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| 02.16 | | 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 | + | | 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 |
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| 02.46 | | 02.46 | ||
− | |Now click on Save | + | |Now click on '''Save ''' |
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| 02.54 | | 02.54 | ||
− | | Ctrl, Alt and T keys simultaneously on your keyboard. | + | | '''Ctrl, Alt''' and '''T''' keys simultaneously on your keyboard. |
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| 02.59 | | 02.59 | ||
− | | To compile type gcc space structure.c space hyphen o space struct and press Enter | + | | To compile type '''gcc space structure.c space hyphen o space struct''' and press''' Enter''' |
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| 03.12 | | 03.12 | ||
− | |To execute type (dot slash)./struct. Press Enter | + | |To execute type (dot slash)'''./struct.''' Press Enter |
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| 03.30 | | 03.30 | ||
− | |First press shift, Ctrl and S keys simultaneously on the keyboard | + | |First press '''shift, Ctrl and S''' keys simultaneously on the keyboard |
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| 03.37 | | 03.37 | ||
− | |Now save the file with an extension .cpp | + | |Now save the file with an extension '''.cpp ''' |
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| 03.43 | | 03.43 | ||
− | | Lets change the header file as iostream | + | | Lets change the header file as '''iostream''' |
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| 03.47 | | 03.47 | ||
− | |Now include the using statement | + | |Now include the '''using''' statement |
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| 03.53 | | 03.53 | ||
− | |and click on save | + | |and click on '''save''' |
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| 03.56 | | 03.56 | ||
− | |Structure declaration in C++ is same as in C | + | |Structure declaration in '''C++''' is same as in '''C''' |
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| 04.29 | | 04.29 | ||
− | |Now click on Save | + | |Now click on '''Save''' |
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| 04.35 | | 04.35 | ||
− | |To compile type g++ space structure.cpp space hyphen o space struct1 | + | |To compile type '''g++ space structure.cpp space hyphen o space struct1 ''' |
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| 04.46 | | 04.46 | ||
− | | Here we have struct1 because we dont want to overwrite the output parameters struct for the file structure.c | + | | Here we have struct1 because we dont want to overwrite the output parameters struct for the file '''structure.c ''' |
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| 04.57 | | 04.57 | ||
− | |To execute type (dot slash) ./struct1 Press Enter | + | |To execute type (dot slash) '''./struct1''' Press '''Enter''' |
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| 05.05 | | 05.05 | ||
− | |Total is 210 | + | |'''Total is 210''' |
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| 05.20 | | 05.20 | ||
− | |eg. struct struct_name; | + | |eg. '''struct struct_name; ''' |
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| 05.25 | | 05.25 | ||
− | |Eg: stud.maths = 75; | + | |Eg: '''stud.maths = 75; ''' |
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| 05.33 | | 05.33 | ||
− | |Eg: total = stud.english+ stud.maths + stud.science; | + | |Eg: '''total = stud.english+ stud.maths + stud.science; ''' |
Revision as of 11:23, 26 March 2014
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 | Strucutre 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 filename 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 | Lets 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 |
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 |
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 dont 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.english+ stud.maths + stud.science;
|
05.40 | As an assignment, |
05.41 | Write a program to diplay 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