C-and-C++/C2/First-C-Program/English-timed

From Script | Spoken-Tutorial
Revision as of 15:42, 3 July 2013 by Krupali (Talk | contribs)

Jump to: navigation, search
Time Narration


00.02 પ્રથમ C પ્રોગ્રામ પરના સ્પોકન ટ્યુટોરીયલમાં તમારું સ્વાગત છે.
00.06 આ ટ્યુટોરીયલ માં, આપણે શીખીશું,
00.08 સરળ C પ્રોગ્રામ કેવી રીતે લખવું
00.11 તેને કમ્પાઇલ કેવી રીતે કરવું
00.13 તેને એક્ઝેક્યુટ કેવી રીતે કરવું
00.14 આપણે કેટલીક સામાન્ય એરર અને તેના ઉકેલો પણ સમજીશું.
00.19 આ ટ્યુટોરીયલ રેકોર્ડ કરવા માટે, હું
00.22 ઉબુન્ટુ ઓપરેટીંગ સિસ્ટમ આવૃત્તિ 11.10 અને ઉબુન્ટુ પર GCC કમ્પાઈલર આવૃત્તિ 4.6.1 નો ઉપયોગ કરી રહ્યી છું.
00.31 આ ટ્યુટોરીયલનો અભ્યાસ કરવા માટે,
00.33 તમારે ઉબુન્ટુ ઓપરેટીંગ સિસ્ટમ અને એડિટર સાથે પરિચિત હોવું જોઈએ
00.39 કેટલાક એડીટરો vim અને gedit છે
00.42 આ ટ્યુટોરીયલ માં હું gedit નો ઉપયોગ કરીશ.
00.46 સંબંધિત ટ્યુટોરિયલ્સ માટે અમારી વેબસાઇટ http://spoken-tutorial.org જુઓ.
00.51 ચાલો હું એક ઉદાહરણ દ્વારા C પ્રોગ્રામ કેવી રીતે લખવું તે કહું.
00.56 તમારા કીબોર્ડ પર Ctrl, Alt અને T કીઓ એકસાથે દબાવી ટર્મિનલ વિન્ડો ખોલો.
01.07 હવે ટેક્સ્ટ એડિટર ખોલો. તેથી, પ્રોમ્પ્ટ પર, ટાઇપ કરો,
01.12 “gedit” space “talk” dot “c” space “&”
01.20 પ્રોમ્પ્ટને મુક્ત કરવા માટે આપણે એમપરસેન્ડ (&) ચિહ્નનો ઉપયોગ કરીશું.
01.25 નોંધ લો કે બધી C ફાઈલને ડોટ C એક્સ્ટેંશન છે.
01.31 હવે એન્ટર ડબાઓ.
01.33 ટેક્સ્ટ એડિટર ખૂલેલ છે.
01.37 પ્રોગ્રામ લખવા માટે શરૂઆત કરીએ
01.39 ટાઇપ કરો, ડબલ સ્લેશ “//” space
01.42 “My first C program”.
01.48 અહીં, ડબલ સ્લેશ લીટીને કમેન્ટ કરવા માટે વપરાય છે.
01.52 કમેન્ટ્સ પ્રોગ્રામનો ફ્લો સમજવા માટે વપરાય છે
01.56 તે ડોકયુમેન્ટેશન માટે ઉપયોગી છે
01.58 તે આપણને પ્રોગ્રામ વિશે માહિતી આપે છે
02.01 ડબલ સ્લેશ સિંગલ લાઈન કમેન્ટ તરીકે ઓળખવામાં આવે છે.
02.07 હવે એન્ટર ડબાઓ.
02.09 ટાઇપ કરો, હેશ “include” સ્પેસ, ઑપનિંગ બ્રેકેટ, ક્લોસિંગ બ્રેકેટ,
02.17 પ્રથમ કૌંસ પૂર્ણ કરવું અને પછી તે અંદર લખવાનું શરૂ કરવું એ હંમેશા સારી પ્રેક્ટીસ છે,
02.24 હવે કૌશ અંદર, ટાઇપ કરો, “stdio” dot”.” “h”
02.30 stdio.h એ હેડર ફાઈલ છે.
02.34 પ્રોગ્રામ આ હેડર ફાઈલ સમાવવું જ જોઈએ જયારે તે ઇનપુટ/આઉટપુટ ફ્ન્ક્શનોનો ઉપયોગ કરે છે. હવે એન્ટર દબાવો.
02.43 ટાઇપ કરો, “int” સ્પેસ “main” ઓપનીંગ બ્રેકેટ, 
ક્લોસિંગ બ્રેકેટ “()”.
02.50 ' main એક ખાસ ફન્કશન છે.
02.53 તે સૂચવે છે કે પ્રોગ્રામનું એકઝીક્યુશન આ લીટીથી શરૂ થાય છે.
02.58 The opening bracket and closing bracket is called as parenthesis.
03.04 Parenthesis followed by main is to tell the user that main is a function
03.11 Here the int main function takes no arguments
03.15 It returns a value of type integer.
03.19 We will learn about data types in another tutorial.
03.23 Now Let us switch to the slides to know more about main function. Let us go to the next slide.
03.30 Every programshould have one main function
03.33 There should NOT be more than one main function
03.37 Otherwise the compiler cannot locate the beginning of the program
03.41 The empty pair of parentheses indicates that main has no arguments
03.47 The concept of arguments will be discussed in detail in the upcoming tutorials.
03.52 Now let us come back to our program. Press Enter.
03.58 Type opening curly brace “{”
04.00 The opening curly bracket marks the beginning of the function main.
04.05 Then Type closing curly bracket “}”
04.08 The closing curly bracket indicates the end of the function main.
04.13 Now Inside the bracket
04.14 press Enter twice, move the cursor one line up
04.20 Indentation makes the code easier to read
04.23 It also helps to locate errors faster
04.26 So let us give three space here
04.29 And Type “printf” opening bracket closing bracket “()”
04.34 printf is a standard C function to print the output on the terminal
04.39 Here inside the brackets, within double quotes,
04.44 Anything within the double quotes in the printf statement will be printed on the terminal.
04.50 Type“Talk To a Teacher backslash n”
05.00 Backslash n “\n” signifies newline
05.03 As a result, after execution of the printf function, the cursor moves to the new line
05.11 Every C statement must end with a semicolon “;”
05.15 Hence, type it at the end of this line.
05.19 Semicolon acts as a statement terminator.
05.24 Now press Enter give three space here
05.28 And type “return” space “0” and a semicolon “;”
05.34 This statement returns the integer zero
05.38 An integer has to be returned for this function because the function type is int
05.45 The return statement marks the end of executable statements
05.51 We will learn more about the returned values in another tutorial.
05.56 Now click on"Save" button to save the file
06.00 It is a good habit to save files frequently
06.03 This will protect you from sudden power failures
06.06 It will also be useful in case the applications were to crash.
06.11 Let us now compile the program come back to a terminal.
06.15 Type “gcc” space “talk.c” space hyphen “-o” space “myoutput”
06.24 gcc is the compiler
06.27 talk.c is our filename .
06.30 -o myoutput says that the executable should go to the file myoutput
06.37 Now Press Enter.
06.39 We see that the program is compiled
06.42 By typing ls -lrt, we can see that myoutput is the last file to be created
06.54 To execute the program, type dot slash “./myoutput” press Enter.
07.01 Here the output is displayed as “Talk To a Teacher”.
07.06 As I said before, return is the last statement to be executed
07.10 Thus after the return statement nothing will be executed. Let us try it out.
07.16 come back to our program.
07.17 After the return statement, let us include one more printf statement type printf("Welcome \n");
07.35 Now click on save.
07.37 Let us compile and execute come back to our terminal.
07.41 you can recall the previously entered commands by using up arrowkey.
07.46 That is what I did now
07.51 We see that the second statements welcome is not executed
07.58 Now come back to our program
08.00 Let us write the 'Welcome' statement above the return statement
08.07 Click on Save.
08.09 Let us compile and execute
08.15 We see that the second printf statement welcome has also has been executed
08.23 Now let us see the common errors which we can come across. Come back to our program.


08.29 Suppose here I will the miss the dot in “stdio.h” Click on save.


08.35 Let us compile and execute .
08.42 We see that
08.43 There is a fatal error at line no.2 in our talk.c file.
08.48 The compiler cannot find a header file with the name “stdioh”hence it is giving an error no such file or directory.
08.59 And the compilation is terminated.
09.03 Let us now fix the error come back to a program Reinsert the dot “.”click on save


09.11 Let us compile and execute it.Yes It is working.
09.19 I will show you another common error
09.23 Let us switch back to the program.


09.26 Now, suppose here i will miss the semicolon at the end of the line
09.31 Click on Save.Let us compile and execute
09.42 We see that there is an error at line no.6 in our talk.c file. That expected semicolon before printf.
09.51 Come back to our program. As i said before semicolon acts as a statement terminator


09.59 So it will search for it at the end of the line.5 and at the beginning of the line.6.
10.07 This is line 6
10.09 This is the last place where you can put the semicolon
10.13 Recall that the compiler also give the error message on line 6.
10.18 Let us try what happens if we put the semicolon here.
10.24 Click on Save .
10.26 Let us Compile and execute.Yes it is working
10.33 Now come back to our program. Let us type the semicolon here at the end of this line.



10.41 As it is a conventional practice to type the semicolon at the end of the line. Now click on save.
10.49 Let us Compile and execute. .Yes it is working.


10.49 Let us go back to our slides.
10.57 As an Assignment
10.59 Write a program to print "Welcome to the World of C"
11.03 See what happens if “\n” is not included in the printf statement.
11.09 This brings us to the end of this tutorial
11.12 Watch the video available at the link shown http://spokentutorial.org/What\_is\_a\_Spoken\_Tutorial
11.15 It summarises the Spoken Tutorial project
11.18 If you do not have good bandwidth, you can download and watch it.
11.22 The Spoken Tutorial Project Team
11.25 Conducts workshops using spoken tutorials
11.28 Gives certificates to those who pass an online test
11.32 For more details, please write to contact [at] spoken hyphen tutorial dot org
11.38 Spoken Tutorial Project is a part of the Talk to a Teacher project
11.42 It is supported by the National Mission on Education through ICT, MHRD, Government of India
11.48 More information on this Mission is available at: http://spoken-tutorial.org\NMEICT-Intro
11.51 This is Ashwini Patil from IIT Bombay. Thank you for joining.
Retrieved from "https://script.spoken-tutorial.org/index.php?title=C-and-C%2B%2B/C2/First-C-Program/English-timed&oldid=4965"