Java/C2/Method-overloading/Gujarati - Revision history

Jyotisolanki at 10:35, 24 March 2017

2017-03-24T10:35:34Z

Pratik kamble at 10:18, 15 July 2014

2014-07-15T10:18:04Z

Pratik kamble at 10:17, 15 July 2014

2014-07-15T10:17:08Z

Krupali at 11:08, 4 October 2013

2013-10-04T11:08:45Z

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Jyotisolanki at 05:53, 5 September 2013

2013-09-05T05:53:37Z

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Jyotisolanki at 11:24, 4 September 2013

2013-09-04T11:24:39Z

Jyotisolanki at 10:20, 4 September 2013

2013-09-04T10:20:36Z

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Jyotisolanki: Created page with ' {| border=1 || ''Time''' || '''Narration''' |- | 00:01 | Welcome to the Spoken Tutorial on '''method overloading''' in''' java'''. |- | 00:06 | In this tutorial we will l…'

2013-09-04T08:47:49Z

Created page with ' {| border=1 || ''Time''' || '''Narration''' |- | 00:01 | Welcome to the Spoken Tutorial on '''method overloading''' in''' java'''. |- | 00:06 | In this tutorial we will l…'

New page

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

|-
| 00:01
| Welcome to the Spoken Tutorial on '''method overloading''' in''' java'''.

|-
| 00:06
| In this tutorial we will learn

|-
| 00:08
| What is '''method overloading.'''

|-
| 00:10
|And to overload '''method.'''

|-
| 00:13
| Here we are using

* Ubuntu version 11.10 OS
* Java Development kit 1.6
* And Eclipse 3.7.0

|-
| 00:24
| To follow this tutorial you must know

|-
| 00:26
|how to create '''methods '''and

|-
| 00:29
|To '''overload''' '''constructor''' in '''java''' using '''eclipse'''.

|-
| 00:32
|If not, for relevant tutorials please visit our website which is as shown,

('''http'''://'''www.spoken'''-'''tutorial.org''')

|-
| 00:39
|What is '''method overloading'''?
|-
| 00:42
| Define two or more methods with same name within a class.

|-
| 00:46
|They must differ in number or types of parameters.

|-
| 00:50
|These methods are called '''overloaded methods'''.

|-
| 00:54
|The process is called '''method''' '''overloading'''.

|-
| 00:57
| Let us now see how to overload '''method'''.

|-
| 01:00
|In '''eclipse''', I have a class '''Addition.'''

|-
| 01:06
|Inside the class we will declare two integer variables.

|-
| 01:10
|So type '''''int''''' '''''a''''' ''is equalto '''10''' and '''int''' '''b''' is equalto '''5''.'''

|-
| 01:19
| Let us create a method to add these two integers.

|-
| 01:23
|So type''''' void add '''parentheses''.

|-
| 01:30
|''Within curly brackets type '''System''' dot '''out''' dot '''println'''.''

|-
| 01:40
|''Inside parentheses '''a+b'''.''

|-
| 01:44
|So this method will give us the sum of two integer variables.

|-
| 01:50
| Let us create another method which takes two parameter.

|-
| 01:55
|So type '''''void addTwoNumbers'''''.
|-
| 02:04
|''Within parentheses '''int''' '''num1''' comma '''int''' '''num2.'''''

|-
| 02:14
|Then within curly brackets '''System''' dot '''out''' dot '''println''' '''num1''' plus '''num2.'''''

|-
| 02:35
|So this method will give us the sum of two values that are passed test argument to this methods.
|-
| 02:44
| Let us create an object of the class and call the methods.

|-
| 02:49
|So in the '''Main''' method type '''''Addition i.e the class name ''''' '''''obj''' is equalto '''new''' '''Addition''' parentheses'' semicolon.

|-
| 03:13
|Then'''Obj.add'''

|-
| 03:18
|And'''''Obj.addTwonumbers''' within parentheses.''

|-
| 03:31
| we will pass two arguments.

|-
| 03:33
|Suppose if we pass floating point values.

|-
| 03:37
|So type '''2.5''' comma and an integer '''3'''.

|-
| 03:45
| We get an error which states that ,''' the method addTwoNumbers int comma int of the class '''addition is not applicable for the argument '''double comma int'''.

|-
| 03:57
| So what we do is in the method instead of '''int''' we will give '''double'''.

|-
| 04:06
|So replace'''''int'''''by '''''double'''''. Save the file

|-
| 04:12
| we see that the error is resolved.

|-
| 04:17
| we also know that Java automatically i.e. implicitly coverts '''int''' into '''double'''.

|-
| 04:24
|So here we can pass an integer arguments as well.

|-
| 04:28
| Now '''Save''' and '''Run''' the program

|-
| 04:32
| In the output we see the sum of two integers variables,

|-
| 04:37
|And the sum of two numeric arguments that we passed.

|-
| 04:43
| Now we see that both the method performs same operation.

|-
| 04:50
|The difference is that the first method has no parameter. While the second method has parameters.

|-
| 05:00
|So in such case java provides us with '''method''' '''overloading'''.

|-
| 05:05
| So what we do is give same name to both the methods.

|-
| 05:09
|So replace '''''addTwoNumbers''''' with '''''add''''' also change here.

|-
| 05:29
| We will define one more method with same opearation.

|-
| 05:33
|So type '''''void''' '''add'''.''

|-
| 05:38
|And''Within parentheses '''int n1 '''comma '''int n2''' comma '''int n3.'''''

|-
| 05:51
|So we have given three parameters.

|-
| 05:54
| One Within curly brackets '''System''' dot '''out''' dot''' println'''.''

|-
| 06:03
|''Within parentheses '''n1''' plus '''n2''' plus '''n3'''.''

|-
| 06:11
|So this method will give sum of three numbers.

|-
| 06:17
| let us call this method.

|-
| 06:19
|So type ''''' obj dot add''' '''1''' comma''' 5''' comma '''4'''''

|-
| 06:35
| ''Save''' and '''Run'''

|-
| 0639
| In the output we see the sum of three number i.e'''10'''

|-
| 06:47
|So Java compiler overloads the proper method depending on the parameters.

|-
| 06:52
|It checks the number and type of parameter passed

|-
| 06:57
|So as a programmer we dont have worry about the method name.

|-
| 07:01
|Nor even the type or number of argument we passed.

|-
| 07:05
| We can create one more method which append strings.

|-
| 07:11
|So we will create one more '''overload ''' method
|-
| 07:15
| type '''''void add''''' '''String''' '''s1''' comma '''String''' '''s2'''. ''

|-
| 07:29
|''Within curly brackets '''System''' dot '''out''' dot '''println'''.''

|-
| 07:41
|''Within parentheses '''s1''' plus '''s2'''.''

|-
| 07:45
| And we will call this method.

|-
| 07:50
|So type '''''obj''' dot '''add'''.''

|-
| 07:55
|''Within parentheses in double quotes '''Hello''' comma in double quotes space '''World'''.''

|-
| 08:07
|Now '''Save''' and '''Run''' the program.

|-
| 08:12
| So in the output we see '''Hello''' space '''World'''.

|-
| 08:16
|So the add method with two string arguments, appends the string.

|-
| 08:21
| Suppose now we declare add method with return type.

|-
| 08:27
|So type'' '''int''' '''add''' parentheses no parameter and curly brackets.''

|-
| 08:40
| We get an error it states that''' duplicate method''' add in type addition

|-
| 08:48
|This is because we have already declared a method''' add''' with no parameters.

|-
| 08:54
|So remember that to overload method the parameters must differ.

|-
| 08:5
|Having different return types will not overload the method.

|-
| 09:03
|So remove this method and Save the file.

|-
| 09:09
|This is how '''method overloading''' is done in '''java'''

|-
| 09: 16
| So in this tutorial we learnt,

|-
| 09:18
|About '''method overloading.'''

|-
| 09:20
|To''' overload method.'''

|-
| 09:22
| And advantage of '''method overloading.'''

|-
| 09:25
| For self assessment, create a method subtract that subtract that number

|-
|09:31
|Overload it.

|-
| 09:33
| To know more about the Spoken Tutorial Project
|-
| 09:36
| Watch the video available at [http://spoken-tutorial.org/What_is_a_Spoken_Tutorial http://spoken-][http://spoken-tutorial.org/What_is_a_Spoken_Tutorial tutorial.org/What_is_a_Spoken_Tutorial]
|-
| 09:42
| It summarizes the Spoken Tutorial project

|-
| 09:45
| If you do not have good bandwidth, you can download and watch it

|-
| 09:48
| The Spoken Tutorial Project Team

|-
| 09:50
| Conducts workshops using spoken tutorials

|-
| 09:52
|Give certificates to those who pass an online test

|-
| 09:56
| For more details, please write to contact@spoken-tutorial.org

|-
| 10:01
| | Spoken Tutorial Project is a part of the Talk to a Teacher project

|-
| 10:05
|It is supported by the National Mission on Education through ICT, MHRD, Government of India

|-
| 10:11
| More information on this Mission is available at
[http://spoken-tutorial.org/NMEICT-Intro http://spoken-tutorial.org/NMEICT-Intro]

|-
| 10:19
| We have come to the end of this tutorial.

|-
| 10:21
|Thanks for joining.

|-
| 10:22
|This is Prathamesh Salunke signing off. Jai Hind.

|}

@@ Line 408: / Line 408: @@
 |-
 | 10:11
-| આ મિશન પર વધુ માહીતી આપેલ લીંક પર ઉપલબ્ધ છે
+| આ મિશન પર વધુ માહીતી આપેલ લીંક પર ઉપલબ્ધ છે '''http://spoken-tutorial.org/NMEICT-Intro'''
-−
- '''*''' '''http://spoken-tutorial.org/NMEICT-Intro'''
 |-

@@ Line 341: / Line 341: @@
 |-
-| 09: 16
+| 09:16
 | તો આ ટ્યુટોરીયલમાં આપણે શીખ્યા,

@@ Line 329: / Line 329: @@
 |-
-| 08:5
+| 08:58
 | અલગ રીટર્ન ટાઇપ હોવું મેથડને ઓવરલોડ કરશે નહી.

@@ Line 195: / Line 195: @@
 |-
 | 04:43
-|  Now we see that both the method performs same operation.
+|હવે આપણે જોઈએ છીએ કે બંને મેથડ  સમાન ક્રિયા ભજવે છે.
 |-
 |  04:50
-|The difference is that the first method  has no parameter. While the second method has  parameters.
+|તફાવત છે કે પ્રથમ મેથડ પેરામીટર ધરાવતું નથી.જયારે બીજું મેથડ પેરામીટર ધરાવે છે.
 |-
 |  05:00
-|So in such case java provides us with '''method''' '''overloading'''.
+|તો આવા કિસ્સામાં જવા આપણને '''method''' '''overloading''' પ્રદાન કરે છે.
 |-
 | 05:05
-| So what we do is give same name to both the methods.
+|તો આપણે શું કરીશું કે બંને મેથાડોને સમાન નામ આપીશું.
 |-
 |  05:09
-|So replace '''''addTwoNumbers''''' with '''''add'''''  also change here.
+|તો '''''addTwoNumbers''''' ને  '''''add'''''થી બદલી કરો સાથે જ અહી પણ બદલો.
 |-
 |   05:29
-|  We will define one more method with same opearation.
+|સમાન ક્રિયા સાથે આપણે વધુ એક મેથડ વ્યાખ્યિત કરીશું.
 |-
 |  05:33
-|So type '''''void''' '''add'''.''
+|તો ટાઈપ કરો '''''void''' '''add'''.''
 |-
 |  05:38
-|And''Within parentheses '''int n1 '''comma '''int n2''' comma '''int n3.'''''
+|અને ''કૌંસમાં  '''int n1 '''અલ્પવિરામ  '''int n2''' અલ્પવિરામ '''int n3.'''''
 |-
 |  05:51
-|So we have given three parameters.
+|તો આપણે ત્રણ પેરામીટરો આપ્યા છે.
 |-
 | 05:54
-| One Within curly brackets '''System''' dot '''out''' dot''' println'''.''
+| 'પહેલું છગડીય કૌંસમાં '''System''' dot '''out''' dot''' println'''.'
 |-
 |  06:03
-|''Within parentheses '''n1''' plus '''n2''' plus '''n3'''.''
+|કૌંસમાં '''n1''' plus '''n2''' plus '''n3'''.''
 |-