Difference between revisions of "C-and-C++/C3/Arrays/English-timed"

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{| border = 1
 
{| border = 1
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+
|'''Time'''
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|Time
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|'''Narration'''
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+
−
|Narration
+
−
 
+
  
 
|-
 
|-
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|-
 
|-
 
| 00:07
 
| 00:07
−
|In this tutorial we will learn,    
+
|In this tutorial we will learn:    
  
 
|-
 
|-
 
| 00:09
 
| 00:09
−
|What is an '''array.'''
+
| What is an '''array'''
  
 
|-
 
|-
 
| 00:11
 
| 00:11
−
|Declaration of an '''array. '''
+
| Declaration of an '''array '''
  
 
|-
 
|-
 
| 00:13
 
| 00:13
−
|Initialization of an '''array. '''
+
| Initialization of an '''array '''
  
 
|-
 
|-
 
| 00:16
 
| 00:16
−
| Few Examples on array
+
| Few Examples on array.
  
 
|-
 
|-
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|-
 
|-
 
| 00:22
 
| 00:22
−
| To record this tutorial, I am using,
+
| To record this tutorial, I am using  
  
 
|-
 
|-
 
| 00:25
 
| 00:25
−
|'''Ubuntu Operating System''' version 11.04  
+
|'''Ubuntu Operating System''' version 11.04,
  
 
|-
 
|-
 
|00:30
 
|00:30
 
| '''gcc''' and '''g++ Compiler''' version 4.6.1 .
 
| '''gcc''' and '''g++ Compiler''' version 4.6.1 .
−
 
  
 
|-
 
|-
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|-
 
|-
 
| 00:55
 
| 00:55
−
|'''Single dimensional array. '''
+
|'''Single dimensional array '''
  
 
|-
 
|-
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|-
 
|-
 
| 01:11
 
| 01:11
−
|'''data-type name of the array and size'''
+
|'''data-type name of the array''' and '''size'''
  
 
|-
 
|-
 
|01:16
 
|01:16
−
|example, here we have declare an integer array star which contain 5 elements
+
|example, here we have declared an '''integer array''' 'star' which contains 5 elements.
  
 
|-
 
|-
 
|01:24
 
|01:24
−
|The array index will start from star 0 to star 4
+
|The array index will start from star 0 to star 4.
  
 
|-
 
|-
 
|01:29
 
|01:29
−
|We saw the declaration of an array
+
|We saw the declaration of an array.
−
 
+
  
 
|-
 
|-
 
|01:32
 
|01:32
−
|Now, we will see the initialize of an array.  
+
|Now, we will see the initialization of an array.  
  
 
|-
 
|-
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| 01:38
 
| 01:38
 
|'''data-type,( name of the array ), size is equal to elements'''
 
|'''data-type,( name of the array ), size is equal to elements'''
−
 
  
 
|-
 
|-
 
| 01:44
 
| 01:44
−
|example, here we have declared an integer array star with size 3. The elements of the array are 1,2 and 3
+
|example: here we have declared an 'integer array star' with size 3. The elements of the array are 1,2 and 3.
  
 
|-
 
|-
 
|01:54
 
|01:54
−
|Here the index will start from star 0 to star 2
+
|Here the index will start from star 0 to star 2.
  
 
|-
 
|-
 
|01:59
 
|01:59
−
|Now, lets us move to the examples
+
|Now, lets us move to the examples.
  
 
|-
 
|-
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|-
 
|-
 
| 02:06
 
| 02:06
−
|Please,note that our file name is '''array.c '''
+
|Please note that our file name is '''array.c '''
−
 
+
  
 
|-
 
|-
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|-
 
|-
 
| 02:16
 
| 02:16
−
| Let me explain the code now
+
| Let me explain the code now.
  
 
|-
 
|-
 
| 02:18
 
| 02:18
 
| This is our '''header file.'''
 
| This is our '''header file.'''
−
 
  
 
|-
 
|-
 
|02:20
 
|02:20
−
|This is our '''main function'''.  
+
|This is our '''main()''' function.  
−
 
+
  
 
|-
 
|-
 
| 02:22
 
| 02:22
−
| Here, we have declared and initialized an '''array star''' with size 3.  
+
| Here, we have declared and initialized an array '''star''' with size 3.  
  
 
|-
 
|-
 
| 02:28
 
| 02:28
−
| The elements of the array are 4, 5 and 6
+
| The elements of the array are 4, 5 and 6.
  
 
|-
 
|-
 
| 02:33
 
| 02:33
−
|Then we have declared an '''integer variable sum'''
+
|Then we have declared an 'integer variable' '''sum'''.
  
 
|-
 
|-
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|-
 
|-
 
| 02:41
 
| 02:41
−
|Note that 4 will be store at index 0, 5 will be store at index 1 and 6 will be store at index 2
+
|Note that 4 will be stored at index 0, 5 will be stored at index 1 and 6 will be stored at index 2.
  
 
|-
 
|-
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|-
 
|-
 
| 02:52
 
| 02:52
−
|This is our '''return statement.'''
+
|This is our '''return''' statement.
  
 
|-
 
|-
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|-
 
|-
 
| 02:59
 
| 02:59
−
|Please open the terminal window by pressing '''Ctrl, Alt and T ''' keys simultaneously on your keyboard.
+
|Please open the terminal window by pressing '''Ctrl, Alt''' and '''T ''' keys simultaneously on your keyboard.
  
 
|-
 
|-
 
| 03:09
 
| 03:09
−
|To compile type, '''gcc space array dot c space hypen o array''' and press '''Enter.'''
+
|To compile, type '''gcc space array dot c space hypen o array''' and press '''Enter.'''
  
 
|-
 
|-
 
| 03:19
 
| 03:19
−
| To execute type, '''dot slash array '''.Press '''Enter'''
+
| To execute, type '''dot slash array '''(./array). Press '''Enter'''.
  
 
|-
 
|-
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|-
 
|-
 
| 03:28
 
| 03:28
−
|Now let us see some common errors which we can come accross.  
+
|Now let us see some common errors which we can come across.  
−
 
+
  
 
|-
 
|-
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|-
 
|-
 
| 03:34
 
| 03:34
−
|Suppose here, at line number 4 we miss the curly brackets.  
+
|Suppose, here at line number 4, we miss the curly brackets.  
  
 
|-
 
|-
 
| 03:39
 
| 03:39
−
|Click on '''Save'''. Let us see what happens
+
|Click on '''Save'''. Let us see what happens.
  
 
|-
 
|-
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|-
 
|-
 
| 03:47
 
| 03:47
−
| We see an error
+
| We see an error:
  
 
|-
 
|-
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|-
 
|-
 
| 04:09
 
| 04:09
−
|Now, click on '''Save'''
+
|Now, click on '''Save'''.
  
 
|-
 
|-
 
| 04:12
 
| 04:12
−
|Lets us execute. Come back to the terminal  
+
|Lets us execute. Come back to the terminal.
  
 
|-
 
|-
 
| 04:15
 
| 04:15
 
|Let us compile as before. Let us execute as before.
 
|Let us compile as before. Let us execute as before.
−
 
  
 
|-
 
|-
 
| 04:19
 
| 04:19
−
| Yes,it is working
+
| Yes, it is working.
−
 
+
  
 
|-
 
|-
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|-
 
|-
 
| 04:30
 
| 04:30
−
|First press '''Shift , Ctrl and S''' keys  simultaneously on your keyboard
+
|First, press '''Shift , Ctrl''' and '''S''' keys  simultaneously on your keyboard.
  
 
|-
 
|-
 
| 04:38
 
| 04:38
−
|Now save the file with the extension dot '''cpp''' and click on '''Save'''
+
|Now save the file with the extension '''dot cpp''' (.cpp) and click on '''Save'''.
  
 
|-
 
|-
 
| 04:44
 
| 04:44
−
|Let us change the ''' header file''' as '''iostream'''
+
|Let us change the ''' header file''' as '''iostream'''.
  
 
|-
 
|-
 
| 04:49
 
| 04:49
−
|Now include the '''using''' statement
+
|Now include the '''using''' statement.
  
 
|-
 
|-
 
| 04:55
 
| 04:55
−
|The declaration and initialization of an array is same in C++
+
|The declaration and initialization of an array is same in C++.
  
 
|-
 
|-
 
| 05:01
 
| 05:01
−
|Hence no need to change anything here
+
|Hence no need to change anything here.
  
 
|-
 
|-
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|-
 
|-
 
| 05:09
 
| 05:09
−
|Delete the format specifier and back slash n, now delete the comma and type two opening angle brackets
+
|Delete the format specifier and backslash n (\n), now delete the comma and type two opening angle brackets.
  
 
|-
 
|-
 
| 05:17
 
| 05:17
−
|Delete the bracket here. Again type two opening angle brackets and within the double quotes type back slash n
+
|Delete the bracket here. Again type two opening angle brackets and within the double quotes type backslash n (\n).
  
 
|-
 
|-
 
| 05:26
 
| 05:26
−
|Now click on '''Save.'''  
+
|Now, click on '''Save.'''  
  
 
|-
 
|-
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|-
 
|-
 
| 05:32
 
| 05:32
−
|To compile type, '''g++ space array dot cpp space hypen o space array1.'''
+
|To compile, type '''g++ space array dot cpp space hyphen o space array1'''
  
 
|-
 
|-
 
| 05:42
 
| 05:42
−
|Here we have array1 because we dont want to overwrite the output parameter '''array''' for the file '''array dot c'''
+
|Here we have array1 because we don't want to overwrite the output parameter '''array''' for the file '''array dot c'''.
  
 
|-
 
|-
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|-
 
|-
 
| 05:54
 
| 05:54
−
|To execute type,''' dot slash array1''' .Press '''Enter'''
+
|To execute type,''' dot slash array1'''(./array1) . Press '''Enter'''.
  
 
|-
 
|-
 
| 05:59
 
| 05:59
−
|The output is displayed as,  '''The sum is 15'''
+
|The output is displayed as: '''The sum is 15'''
  
 
|-
 
|-
 
| 06:02
 
| 06:02
−
|We can see that it is similar to our C code
+
|We can see that it is similar to our C code.
  
 
|-
 
|-
 
| 06:07
 
| 06:07
 
|Now, we will see another common error.
 
|Now, we will see another common error.
−
 
  
 
|-
 
|-
 
| 06:10
 
| 06:10
−
|Come back to our program
+
|Come back to our program.
  
 
|-
 
|-
 
| 06:12
 
| 06:12
−
|Suppose here, at line number 7  
+
|Suppose here, at line number 7,
  
 
|-
 
|-
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|-
 
|-
 
| 06:23
 
| 06:23
−
|Click on Save.
+
|click on Save.Let us execute. Come back to our terminal.
−
 
+
−
|-
+
−
| 06:24
+
−
|Let us execute. Come back to our terminal
+
  
 
|-
 
|-
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| 06:36
 
| 06:36
 
|We get an unexpected output.
 
|We get an unexpected output.
−
 
  
 
|-
 
|-
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|-
 
|-
 
| 06:54
 
| 06:54
−
|Type 0 here 1 and 2. Click on Save
+
|Type 0 here 1 and 2. Click on Save.
  
 
|-
 
|-
 
| 07:02
 
| 07:02
−
|Let us execute. Come back to our terminal
+
|Let us execute. Come back to our terminal.
  
 
|-
 
|-
 
| 07:05
 
| 07:05
−
|Let us compile as before. Execute as before
+
|Let us compile as before. Execute as before.
  
 
|-
 
|-
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|-
 
|-
 
| 07:12
 
| 07:12
−
|Now, we will go back to our slides
+
|Now, we will go back to our slides.
  
 
|-
 
|-
 
| 07:14
 
| 07:14
−
|Le us summarize
+
|Le us summarize.
  
 
|-
 
|-
 
| 07:16
 
| 07:16
−
|In this tutorial we learned,
+
|In this tutorial we learned:
−
 
+
  
 
|-
 
|-
 
| 07:19
 
| 07:19
−
|Arrays.
+
|Arrays , To declare Single Dimensional Arrays  
−
 
+
−
|-
+
−
| 07:20
+
−
|To declare Single Dimensional Arrays.
+
  
 
|-
 
|-
 
| 07:23
 
| 07:23
−
|To initialize Single Dimensional Arrays.
+
| To initialize Single Dimensional Arrays
−
 
+
  
 
|-
 
|-
 
| 07:26
 
| 07:26
−
|example''' int star[3]={4, 5, 6}'''
+
|example '''int star[3]={4, 5, 6}'''
  
 
|-
 
|-
 
| 07:31
 
| 07:31
−
|To add the element of the array, example sum is equal to star 0 plus star 1 plus star 2
+
|To add the elements of the array, example sum is equal to star 0 plus star 1 plus star 2.
  
 
|-
 
|-
 
| 07:40
 
| 07:40
−
|As an assignment,  
+
|As an assignment, write a program to calculate the difference of the elements stored in an array.  
−
 
+
−
|-
+
−
| 07:41
+
−
|Write a program to calculate the difference of the elements stored in an array.  
+
−
 
+
  
 
|-
 
|-
 
| 07:47
 
| 07:47
−
|Watch the video available at the link shown below
+
|Watch the video available at the link shown below.
  
 
|-
 
|-
 
| 07:50
 
| 07:50
−
|It summarizes the Spoken Tutorial project  
+
|It summarizes the Spoken Tutorial project.
  
 
|-
 
|-
 
| 07:53
 
| 07:53
−
|If you do not have good bandwidth, you can download and watch it  
+
|If you do not have good bandwidth, you can download and watch it.
  
 
|-
 
|-
 
| 07:57
 
| 07:57
−
|The Spoken Tutorial Project Team  
+
|The Spoken Tutorial Project Team:
  
 
|-
 
|-
 
| 08:00
 
| 08:00
−
|Conducts workshops using spoken tutorials  
+
|Conducts workshops using spoken tutorials.
  
 
|-
 
|-
 
| 08:03
 
| 08:03
−
|Gives certificates to those who pass an online test  
+
|Gives certificates to those who pass an online test.
  
 
|-
 
|-
 
| 08:06
 
| 08:06
−
|For more details, please write to, contact@spoken-tutorial.org  
+
|For more details, please write to, contact@spoken-tutorial.org.
  
 
|-
 
|-
 
|08:13
 
|08:13
−
|Spoken Tutorial Project is a part of Talk to a Teacher project  
+
|Spoken Tutorial Project is a part of Talk to a Teacher project.
  
 
|-
 
|-
 
| 08:17
 
| 08:17
−
|It is supported by the National Mission on Education through ICT, MHRD, Government of India
+
|It is supported by the National Mission on Education through ICT, MHRD, Government of India.
−
 
+
  
 
|-
 
|-
 
| 08:25
 
| 08:25
−
|More information on this Mission is available at the link shown below
+
|More information on this mission is available at the link shown below.
  
 
|-
 
|-
 
| 08:30
 
| 08:30
−
|This is Ashwini Patil from IIT Bombay signing off  
+
|This is Ashwini Patil from IIT Bombay, signing off.
  
 
|-
 
|-
 
| 08:33
 
| 08:33
 
|Thank You for watching.
 
|Thank You for watching.

Latest revision as of 14:26, 24 March 2017

Time Narration
00:01 Welcome to the spoken-tutorial on Arrays in C and C++.
00:07 In this tutorial we will learn:
00:09 What is an array
00:11 Declaration of an array
00:13 Initialization of an array
00:16 Few Examples on array.
00:18 We will also see some common errors and their solutions.
00:22 To record this tutorial, I am using
00:25 Ubuntu Operating System version 11.04,
00:30 gcc and g++ Compiler version 4.6.1 .
00:36 Let us start with the introduction to Array.
00:39 Array is the collection of data or elements of same data-type.
00:44 Array index starts from 0.
00:48 The first element is stored at index 0.
00:52 There are three types of arrays:
00:55 Single dimensional array
00:57 Two dimensional array and
00:59 Multi-dimensional array.
01:01 We will be discussing single dimensional array in this tutorial.
01:06 Let us see how to declare single dimensional array.
01:09 The Syntax for this is:
01:11 data-type name of the array and size
01:16 example, here we have declared an integer array 'star' which contains 5 elements.
01:24 The array index will start from star 0 to star 4.
01:29 We saw the declaration of an array.
01:32 Now, we will see the initialization of an array.
01:35 The Syntax for this is:
01:38 data-type,( name of the array ), size is equal to elements
01:44 example: here we have declared an 'integer array star' with size 3. The elements of the array are 1,2 and 3.
01:54 Here the index will start from star 0 to star 2.
01:59 Now, lets us move to the examples.
02:01 I have already typed the program on the editor.
02:04 So, let me open it.
02:06 Please note that our file name is array.c
02:10 In this program, we will calculate the sum of the elements stored in an array.
02:16 Let me explain the code now.
02:18 This is our header file.
02:20 This is our main() function.
02:22 Here, we have declared and initialized an array star with size 3.
02:28 The elements of the array are 4, 5 and 6.
02:33 Then we have declared an 'integer variable' sum.
02:36 Here we add the elements of the array and store the result in sum.
02:41 Note that 4 will be stored at index 0, 5 will be stored at index 1 and 6 will be stored at index 2.
02:50 Then we print the sum.
02:52 This is our return statement.
02:54 Now, click on Save.
02:57 Let us execute the program.
02:59 Please open the terminal window by pressing Ctrl, Alt and T keys simultaneously on your keyboard.
03:09 To compile, type gcc space array dot c space hypen o array and press Enter.
03:19 To execute, type dot slash array (./array). Press Enter.
03:24 Here the output is displayed as,
03:26 The sum is 15.
03:28 Now let us see some common errors which we can come across.
03:32 Come back to our program.
03:34 Suppose, here at line number 4, we miss the curly brackets.
03:39 Click on Save. Let us see what happens.
03:42 Come back to the terminal.
03:44 Let us compile as before.
03:47 We see an error:
03:49 Invalid initializer and Expected identifier or bracket before numeric constant.
03:56 This is because arrays must be initialized within curly brackets.
04:01 Come back to our program. Let us fix the error.
04:04 Type the curly brackets here at line number 4.
04:09 Now, click on Save.
04:12 Lets us execute. Come back to the terminal.
04:15 Let us compile as before. Let us execute as before.
04:19 Yes, it is working.
04:21 Now we will execute the same program in C++.
04:25 Come back to our program.
04:28 I will change a few things here.
04:30 First, press Shift , Ctrl and S keys simultaneously on your keyboard.
04:38 Now save the file with the extension dot cpp (.cpp) and click on Save.
04:44 Let us change the header file as iostream.
04:49 Now include the using statement.
04:55 The declaration and initialization of an array is same in C++.
05:01 Hence no need to change anything here.
05:04 Now replace the printf statement with the cout statement.
05:09 Delete the format specifier and backslash n (\n), now delete the comma and type two opening angle brackets.
05:17 Delete the bracket here. Again type two opening angle brackets and within the double quotes type backslash n (\n).
05:26 Now, click on Save.
05:29 Let us execute. Come back to a terminal.
05:32 To compile, type g++ space array dot cpp space hyphen o space array1
05:42 Here we have array1 because we don't want to overwrite the output parameter array for the file array dot c.
05:51 Now press Enter.
05:54 To execute type, dot slash array1(./array1) . Press Enter.
05:59 The output is displayed as: The sum is 15
06:02 We can see that it is similar to our C code.
06:07 Now, we will see another common error.
06:10 Come back to our program.
06:12 Suppose here, at line number 7,
06:14 I will type star[1], star[2] and star[3];
06:23 click on Save.Let us execute. Come back to our terminal.
06:28 Let me clear the prompt.
06:30 Let us compile as before.
06:33 Let us execute as before.
06:36 We get an unexpected output.
06:39 This is because array index starts from 0.
06:43 Come back to our program. We can see here the array index starts from one.
06:49 Hence it is giving an error. Let us fix the error.
06:54 Type 0 here 1 and 2. Click on Save.
07:02 Let us execute. Come back to our terminal.
07:05 Let us compile as before. Execute as before.
07:09 Yes, it is working.
07:12 Now, we will go back to our slides.
07:14 Le us summarize.
07:16 In this tutorial we learned:
07:19 Arrays , To declare Single Dimensional Arrays
07:23 To initialize Single Dimensional Arrays
07:26 example int star[3]={4, 5, 6}
07:31 To add the elements of the array, example sum is equal to star 0 plus star 1 plus star 2.
07:40 As an assignment, write a program to calculate the difference of the elements stored in an array.
07:47 Watch the video available at the link shown below.
07:50 It summarizes the Spoken Tutorial project.
07:53 If you do not have good bandwidth, you can download and watch it.
07:57 The Spoken Tutorial Project Team:
08:00 Conducts workshops using spoken tutorials.
08:03 Gives certificates to those who pass an online test.
08:06 For more details, please write to, contact@spoken-tutorial.org.
08:13 Spoken Tutorial Project is a part of Talk to a Teacher project.
08:17 It is supported by the National Mission on Education through ICT, MHRD, Government of India.
08:25 More information on this mission is available at the link shown below.
08:30 This is Ashwini Patil from IIT Bombay, signing off.
08:33 Thank You for watching.

Contributors and Content Editors

Kavita salve, PoojaMoolya, Pratik kamble, Sandhya.np14

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