Java/C2/do-while/Gujarati - Revision history

PoojaMoolya at 06:12, 28 February 2017

2017-02-28T06:12:12Z

Jyotisolanki at 13:51, 21 February 2017

2017-02-21T13:51:06Z

Pratik kamble at 07:17, 23 June 2014

2014-06-23T07:17:31Z

Krupali at 11:46, 7 August 2013

2013-08-07T11:46:30Z

Krupali at 11:46, 7 August 2013

2013-08-07T11:46:00Z

Show changes

Krupali at 07:35, 7 August 2013

2013-08-07T07:35:30Z

Show changes

Krupali at 05:58, 7 August 2013

2013-08-07T05:58:23Z

Show changes

Krupali: Blanked the page

2013-08-07T05:31:44Z

Blanked the page

Show changes

Krupali: Created page with ' {| border=1 || ''Time''' || '''Narration''' |- |- | 00:02 | Welcome to the spoken tutorial on''' While Loop '''in java'''.''' |- | 00:06 | In this tutorial, you will learn …'

2013-08-07T05:27:44Z

Created page with ' {| border=1 || ''Time''' || '''Narration''' |- |- | 00:02 | Welcome to the spoken tutorial on''' While Loop '''in java'''.''' |- | 00:06 | In this tutorial, you will learn …'

New page

{| border=1
|| ''Time'''
|| '''Narration'''

|-
|-
| 00:02
| Welcome to the spoken tutorial on''' While Loop '''in java'''.'''

|-
| 00:06
| In this tutorial, you will learn '''About the while loop.'''

'''How To use it.'''

|-
| 00:12
| For this tutorial we are using

'''Ubuntu 11.10''',

'''JDK 1.6''' and

'''Eclipse 3.7'''

|-
| 00:21
| To follow this tutorial, you must have knowledge of '''relational operators in Java'''

|-
| 00:26
| If not, for relevant tutorials please visit our website as shown. [http://spoken-tutorial.org/ http][http://spoken-tutorial.org/ ://][http://spoken-tutorial.org/ spoken][http://spoken-tutorial.org/ -][http://spoken-tutorial.org/ tutorial][http://spoken-tutorial.org/ .][http://spoken-tutorial.org/ org]

|-
| 00:36
| Here is the structure of a while loop.

|-
| 00:39
| It has two parts.

|-
| 00:41
| One is the '''loop running condition''' and the second is the '''loop variable.'''

|-
| 00:48
| Let us now look at an example. Switch to Eclipse

|-
| 00:55
| Here We have the eclipse IDE and the skeleton required for rest of the code

|-
| 01:00
| I have created a class WhileDemo and added the main method to it.

|-
| 01:05
| | We shall print numbers from 1 to 10 using a while loop. Type '''''int n = 1'' '''''

|-
| 01:15
| This variable n is going to be our loop variable

|-
| 01:21
| type '''''while ''''in ''parenthesis '''n''' less than or equal to'' '''''10''''' open and close braces

|-
| 01:33
| This condition is called looping running condition.

|-
| 01:37
| It means the loop will run as long as this condition is true.

|-
| 01:42
| In our case, it will run as long as the value of '''n''' is less than or equal to 10.

|-
| 01:47
| And it will stop only when the value of '''n''' become greater than 10.

|-
| 01:53
| Inside the loop, we shall print the value of '''n'''

|-
| 01:58
| '''System.out.println(n);''' and then increment '''n = n + 1;'''

|-
| 02:12
| This way, first 1 is printed and then the value of n becomes 2.

|-
| 02:18
| Then the loop condition is checked.

|-
| 02:21
| Since it is true. 2 is printed and n becomes 3.

|-
| 02:25
| And so on loop progresses untill 10 is printed after that n becomes 11 and the condition is not true and the loop will stop

|-
| 02:37
| So Let us see the code in action.

|-
| 02:39
| Save and run.

|-
| 02:47
| As we can see, the numbers from 1 to 10 are printed.

|-
| 02:52
| Now we shall print numbers from '''50''' to '''40'''

|-
| 02:58
| So We start with 50. ''' Change n = 1 to n = 50'''

|-
| 03:03
| And We go till 40.

|-
| 03:05
| In other words as long as n ''is greater than or equal to ''40. So change the condition to n '' greater than or equal to ''40.

|-
| 03:16
| And since we are looping from a bigger number to a smaller number, we have decrement the loop variable.

|-
| 03:22
| So Change '''n=n + 1''' to '''n=n - 1'''

|-
| 03:27
| Save and run. As we can see, the the numbers 50 to 40 have been printed

|-
| 03:42
| Now we shall print the first 10 multiples of 7.

|-
| 03:48
| To do that, we start with 7

|-
| 03:50
| So change '''n = 50''' to '''n = 7'''and then end with 70.

|-
| 03:57
| Change the condition to n''' ''less than equal to '''''70'''

|-
| 04:03
| This way, we make sure the loop stops at 70.

|-
| 04:07
| To get the multiples, we shall increment the loop variable by 7.

|-
| 04:12
| So, change ''' n=n - 1''' to '''n=n + 7'''

|-
| 04:18
| This way first 7 is printed and then n becomes 14, 14 is printed and so on untill 70. Save and run

|-
| 04:33
| | As we can see, the first 10 multiples of 7 are printed.

|-
| 04:43
| We can also use a while loop to get the sum of digits of a number.

|-
| 04:47
| Let us see how to do so.

|-
| 04:49
| First clear the main method.

|-
| 04:54
| int '''n''' ''equal to'' '''13876'''. This is the number

|-
| 05:02
| Then '''int dSum '''''equal to'' '''0'''The variable dsum with symbolic for digit sum will contain the sum of digits

|-
| 05:18
| Type while, n greater than 0 open close parenthesis

|-
| 05:27
| The reason for using this condition will be evident in a while.

|-
| 05:32
| To get the sum of digits, we must first get the digits.
|-
| 05:36
| To do that we use modulo operator.

|-
| 05:40
| Type '''dSum = dSum + (n % 10)''' So we get the unit digit and add it to dsum

|-
| 05:5
|After that we remove the digit by dividing by 10. n = n / 10

|-
| 06:08
| So when the loop is run for the first time, '''dSum '''will be 6 and n will be 1387.

|-
| 06:15
| And when the loop is run for the the second time, '''dSum''' will be sum of 7 and 6 which is 13, and '''n''' will become 138.

|-
| 06:22
| So on, as the loop progresses, the digits will be removed from '''n''' and finally

|-
| 06:28
| '''n''' become zero.After that the condition n greater than 0 will be false and the loop will stop

|-
| 06:36
| So let us now add a print statement
|-
| 06:42
| '''System.out.println(dSum)'''

|-
| 06:51
| Let us see the code and action. Save and run
|-
| 06:59
| As we can see the sum of digit which is 25 has been printed

|-
| 07:06
| This way, a while loop, which is one of the most fundamental constructs in programming, can be used.

|-
| 07:16
| This brings us to the end of the tutorial.

|-
| 07:20
| In this tutorial we have learnt

* About while loop
* how to use it

|-
|07:26
| As an assignment for this tutorial solve the following problem.

|-
| 07:29
| Given a number, compute its reverse by using a while loop. Example: 19435 => 53491

|-
|07:37
|To know more about the '''Spoken Tutorial''' project, watch the video available at the following link, that summarizes the Spoken Tutorial project

|-
| 07:45
| If you do not have good bandwidth, you can download and watch it.

|-
| 07:50
| The Spoken Tutorial Project Team, Conducts workshops using spoken tutorials, Gives certificates for those who pass an online test

|-
| 07:57
| For more details, please write to '''contact AT spoken HYPHEN tutorial DOT org.'''

|-
| 08:03
| '''Spoken Tutorial '''Project is a part of the '''Talk to a Teacher''' project.
|-
| 08:07
| It is supported by the '''National Mission on Education through ICT, MHRD, Government of India.
|-
| 08:12
| '''More information on this Mission is available at the following link

|-
| 08:17
| This tutorial has been contributed by '''TalentSprint'''. Thanks for joining.

|}

@@ Line 10: / Line 10: @@
 |-
 |  00:06
-| | આ ટ્યુટોરીયલમાં આપણે શીખીશું,
+| આ ટ્યુટોરીયલમાં આપણે શીખીશું, '''  do-while લુપ અને''', '''તે કેવી રીતે વાપરવું.'''
-−
- ''  do-while લુપ અને'''
- '''તે કેવી રીતે વાપરવું.'''
 |-
@@ Line 21: / Line 18: @@
 '''Ubuntu 11.10''',
-'''JDK 1.6''' અને
+'''JDK 1.6''' અને  '''Eclipse 3.7''' નો ઉપયોગ કરી રહ્યા છીએ.
-−
 '''Eclipse 3.7''' નો ઉપયોગ કરી રહ્યા છીએ.
 |-
@@ Line 107: / Line 102: @@
 |-
 |  02:05
-|  અને આપણે આ,
+|અને આપણે આ,
 |-
@@ Line 139: / Line 134: @@
 |-
 |  02:47
-|  પ્રથમ 1 પ્રિન્ટ થાય છે અને પછી n ની વેલ્યુ 2 બને છે.
+| પ્રથમ 1 પ્રિન્ટ થાય છે અને પછી n ની વેલ્યુ 2 બને છે.
 |-
@@ Line 170: / Line 165: @@
 |-
-|  03:23
+|03:23
-|  આપણે મોટા નંબરથી નાના નંબર માટે લુપીંગ કરી રહ્યા છે, તેથી આપણે લુપ વેરિયેબલ ડીક્રીમેન્ટ કર્યો છે.
+| આપણે મોટા નંબરથી નાના નંબર માટે લુપીંગ કરી રહ્યા છે, તેથી આપણે લુપ વેરિયેબલ ડીક્રીમેન્ટ કર્યો છે.
 |-
@@ Line 198: / Line 193: @@
 |-
-|  04:02
+| 04:02
 | હવે do-while લુપની મદદથી વિવિધ લોજીકનો પ્રયાસ કરીએ.
 |-
-|  04:10
+| 04:10
 | આપેલ નંબર સંપૂર્ણ વર્ગ છે કે નહી તે શોધો.
 |-
-|  04:15
+| 04:15
 | પ્રથમ મેઈન મેથડ ક્લીયર કરો.
@@ Line 214: / Line 209: @@
 |-
-|  04:25
+| 04:25
-|  n ની વેલ્યુ સંપૂર્ણ વર્ગ છે કે નહી તે જોઈશું.
+| n ની વેલ્યુ સંપૂર્ણ વર્ગ છે કે નહી તે જોઈશું.
 |-
-|  04:32
+| 04:32
 | પછી ટાઇપ કરો, '''int x = 0;'''
@@ Line 254: / Line 249: @@
 |-
-|   05:16
+| 05:16
 |તો જયારે લૂપ અટકે છે, આ કન્ડીશનનું વિપરીત true થશે.
@@ Line 286: / Line 281: @@
 |-
-|  05:59
+| 05:59
 |   '''Save''' અને '''Run''' કરો.  આપણે joi શકીએ છીએ કે આઉટપુટ '''true''' છે.
@@ Line 294: / Line 289: @@
 |-
-|  06:10
+| 06:10
-|    '''n = 25 ને n = 49''' થી બદલો.
+| '''n = 25 ને n = 49''' થી બદલો.
 |-
-|  06:15
+| 06:15
-|  Save અને Run કરો.
+|Save અને Run કરો.
 |-
@@ Line 306: / Line 301: @@
 |-
-|  06:23
+| 06:23
-|  ચાલો એ નંબર સાથે પ્રયાસ કરીએ જે સંપૂર્ણ વર્ગ નથી.
+|ચાલો એ નંબર સાથે પ્રયાસ કરીએ જે સંપૂર્ણ વર્ગ નથી.
 |-
-|   06:26
+| 06:26
 | 49 ને 23 માં બદલો. Save અને Run કરો અને
@@ Line 354: / Line 349: @@
 |-
-|  07:26
+| 07:26
 |  આ રીતે, do-while લૂપ ઘણી સમસ્યાઓની શ્રેણી ઉકેલવા માટે વપરાય છે.
@@ Line 382: / Line 377: @@
 |-
-|   07:56
+| 07:56
 | સ્પોકન ટ્યુટોરીયલ પ્રોજેક્ટ વિષે વધુ જાણવા માટે, નીચે આપેલ લીંક ઉપર ઉપલબ્ધ વિડીઓ જુઓ,
@@ Line 390: / Line 385: @@
 |-
-|   08:06
+| 08:06
 | સ્પોકન ટ્યુટોરીયલ પ્રોજેક્ટ ટીમ,
@@ Line 402: / Line 397: @@
 |-
-|   08:22
+| 08:22
 |સ્પોકન ટ્યુટોરિયલ પ્રોજેક્ટ એ ટોક ટુ અ ટીચર પ્રોજેક્ટનો એક ભાગ છે. જે આઇસીટી, એમએચઆરડી, ભારત સરકાર દ્વારા શિક્ષણ પર નેશનલ મિશન દ્વારા આધારભૂત છે

@@ Line 12: / Line 12: @@
 | | આ ટ્યુટોરીયલમાં આપણે શીખીશું,
-* ''  do-while લુપ અને'''
+ ''  do-while લુપ અને'''
-* '''તે કેવી રીતે વાપરવું.'''
+ '''તે કેવી રીતે વાપરવું.'''
 |-
@@ Line 279: / Line 279: @@
 |-
 | 05:47
-| '''System.out.println(x * x == n);'''
+| '''System.out.println(x  x == n);'''
 |-

@@ Line 84: / Line 84: @@
 | 01:29
 |'''int n ''ઇકવલ ટુ'' 1  '''''
 |-

@@ Line 1: / Line 1: @@
 {| border=1
-|| ''Time'''
+|| '''Time'''
 || '''Narration'''