Java/C2/Creating-class/English-timed - Revision history

PoojaMoolya at 09:49, 28 March 2017

2017-03-28T09:49:19Z

PoojaMoolya at 10:01, 9 March 2017

2017-03-09T10:01:53Z

Show changes

PoojaMoolya at 14:01, 20 February 2017

2017-02-20T14:01:00Z

Sandhya.np14 at 05:28, 7 April 2015

2015-04-07T05:28:07Z

Sandhya.np14 at 07:12, 30 March 2015

2015-03-30T07:12:51Z

Show changes

Gaurav at 09:11, 9 July 2014

2014-07-09T09:11:08Z

Sneha: Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00:02 | Welcome to the spoken tutorial on '''Creating Classes''' |- | 00:05 | In this tutorial, we will learn about |- | 0…'

2013-07-02T11:58:46Z

Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00:02 | Welcome to the spoken tutorial on '''Creating Classes''' |- | 00:05 | In this tutorial, we will learn about |- | 0…'

New page

{| border=1
|| ''Time'''
|| '''Narration'''
|-
| 00:02
| Welcome to the spoken tutorial on '''Creating Classes'''

|-
| 00:05
| In this tutorial, we will learn about

|-
| 00:08
| A '''class '''in real world
|-
| 00:10
| A '''class '''in Java
|-
| 00:12
| Structure of a''' Java class'''
|-
| 00:14
| Syntax for a''' Java class'''
|-
| 00:16
| And A simple example of '''Java class'''

|-
| 00:19
| Here we are using

* Ubuntu version 11.10
* JDK 1.6 and
* Eclipse 3.7.0

|-
| 00:30
| To follow this tutorial you must know how to write, compile and run a simple Java program in Eclipse.

|-
| 00:37
|If not, please see the spoken-tutorial on these topics available at '''spoken-tutorial.org'''.

|-
| 00:46
| Now let us see what is a '''class '''in real world.

|-
| 00:50
|Whatever we can see in this world are all objects.

|-
| 00:54
|And All the objects can be categorized into special groups.

|-
| 00:59
|Each group is termed as a class.

|-
| 01:02
|For example human being is a class.

|-
| 01:05
|We are all different objects of this class.

|-
| 01:08
|We all have different properties like eyes, legs, hands etc.

|-
| 01:13
| Which are common to the human being class.

|-
| 01:15
|Seeing, eating, walking etc are behaviors that are common to the human being class.

|-
| 01:22
|Now let us see what is the class in '''Java'''?

|-
| 01:26
| A''' class '''is the blueprint from which individual objects are created.

|-
| 01:31
|Structure of a '''Java Class''' ; A class defines:

|-
| 01:35
|A set of properties called''' variables '''

|-
| 01:37
|And A set of behaviors called''' methods.'''

|-
| 01:40
| Now, let us see the syntax for declaring classes

|-
| 01:44
|'''modifier – class -classname''' within curly brackets '''variable, constructor''' and''' method '''declarations.

|-
| 01:52
|We will learn about these in detail in the coming tutorials.

|-
| 01:58
|Now let us create a simple''' class '''using '''Eclipse'''.

|-
| 02:03
|I have already opened''' Eclipse'''.

|-
| 02:09
|Now let us create a '''Project.'''

|-
| 02:11
|So click on '''File,''' go to '''New '''and click on''' Java Project.'''

|-
| 02:20
| In the '''New Project Wizard''', enter the '''Project name '''as '''ClassDemo''' with C and D in capital.

|-
| 02:34
|Then click on '''Finish'''.

|-
| 02:38
| We see that the '''Project ClassDemo''' is created.

|-
|02:43
| We will now create a''' Java class ''' name '''Student'''.

|-
| 02:47
|So right click on''' ClassDemo''', go to''' New''' and click on '''Class'''.

|-
| 02:56
|In the '''New Java Class wizard''' type the '''Name''' as '''Student.'''

|-
| 03:03
|We can see that the '''modifier''' here is''' public'''.

|-
| 03:07
|This shows that the class is visible to all the classes everywhere.

|-
| 03:11
|If a class has no '''modifier''' which is the '''default''' , it is visible only within its own '''package.'''

|-
| 03:18
|We will learn about '''packages''' in the later tutorials.

|-
| 03:23
| Here I have selected''' public.'''

|-
| 03:26
|In the method stubs select '''public static void main.'''

|-
| 03:31
|Then click on '''Finish'''.

|-
| 03:36
|We can see that the class named '''Student '''is created.

|-
| 03:40
|Now, let me remove the comments.

|-
| 03:51
| A '''Student class''' can contain properties like Name, Roll Number, Marks etc.

|-
| 03:57
|So inside this''' class Student''' let me declare two '''variables''' '''Roll Number''' and '''Name'''.

|-
| 04:04
|So, I will type''' int roll''' ''underscore'' '''number''' ''semicolon''.

|-
| 04:14
| '''String name '''''semicolon.''

|-
| 04:19
|So I have declared two '''variables.'''

|-
| 04:22
|Now a class also contains''' methods.'''

|-
| 04:25
|So let me create a method named '''StudentDetail.'''

|-
| 04:30
|This method will give the detail of each student.

|-
| 04:34
|So let me type,'''' void studentDetail''' then opening and closing brackets, curly brackets open.

|-
| 04:49
|Now, this method will give the roll number and name of the Student.

|-
| 04:53
|So, type '''System''' ''dot '''''out '''''dot'' '''println''' within brackets and double quotes '''The roll number is ''' we can type it as number is ; close the double quotes '''plus roll_number ''' ''semicolon''.

|-
| 05:23
|Next line type '''System '''''dot'' '''out''' ''dot''' ''println''' within brackets and double quotes '''The name is''' ''plus'' '''name''' and'' semicolon'''''.'''

|-
| 05:40
|Now, inside the main method we will type '''System''' ''dot'' '''out '''''dot'' '''println''' within brackets and double quotes '''We have created a class with two variables and 1 method.'''

|-
| 06:10
|Thus We have created the class '''student'''.

|-
| 06:20
|Now let me, '''save''' the file by pressing '''Control''' and '''S''' keys simultaneously.

|-
| 06:26
|Let me'''Run '''the program by pressing '''Control '''and '''F11''' keys simultaneously.

|-
| 06:33
| We get the output as :

|-
| 06:34
|'''We have created a class with 2 variables and 1 method '''

|-
| 06:38
|just as we had typed in the main method.

|-
| 06:46
|Thus we have successfully created a '''class'''.

|-
| 06:50
| So, in this tutorial we learnt '''about a class '''in java and '''how to create a class in java'''.

|-
| 06:59
| For self assessment create a '''class''' named '''Employee '''with '''variables emp''' ''underscore'' '''number''' and''' emp''''' underscore'' '''name''' .

|-
| 07:10
|And Method '''printEmployee '''which displays the '''Employee''' information.

|-
| 07:16
| To know more about the spoken-tutorial project.

|-
| 07:19
| 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]

|-
| 07:22
| It summarises the Spoken Tutorial project

|-
| 07:25
| If you do not have good bandwidth, you can download and watch it

|-
| 07:30
| The Spoken Tutorial Project Team

|-
| 07:32
| Conducts workshops using spoken tutorials

|-
| 07:35
|Gives certificates to those who pass an online test

|-
| 07:38
|* For more details, please write to contact@spoken-tutorial.org

|-
| 07:44
| Spoken Tutorial Project is a part of the Talk to a Teacher project

|-
| 07:48
| It is supported by the National Mission on Education through ICT, MHRD, Government of India
|-
| 07:55
| More information on this Mission is available at
* [http://spoken-tutorial.org/NMEICT-Intro http://spoken-tutorial.org/NMEICT-Intro]

|-
| 08:04
| Thus We come to the end of this tutorial.

|-
| 08:07
|This is Arya Ratish from IIT Bomaby signing off. Thanks for joining us.

@@ Line 33: / Line 33: @@
 |-
 | 00:19
-| Here we are using:
+| Here we are using: '''Ubuntu version 11.10''', '''JDK 1.6''' and '''Eclipse 3.7.0'''
 '''Ubuntu version 11.10'''
 '''JDK 1.6''' and
 '''Eclipse 3.7.0'''
 |-

@@ Line 12: / Line 12: @@
 |-
 |  00:08
-|* A '''class''' in real world
+| A '''class''' in real world
 |-
 |  00:10
-|* A '''class''' in Java
+| A '''class''' in Java
 |-
 |  00:12
-|* Structure of a '''Java class'''
+| Structure of a '''Java class'''
 |-
 |  00:14
-|* Syntax for a''' Java class'''
+|Syntax for a''' Java class'''
 |-
 |  00:16
-|* And a simple example of '''Java class'''.
+| And a simple example of '''Java class'''.
 |-
 |  00:19
 | Here we are using:
-* '''Ubuntu version 11.10'''
+'''Ubuntu version 11.10'''
-* '''JDK 1.6''' and
+'''JDK 1.6''' and
-* '''Eclipse 3.7.0'''
+'''Eclipse 3.7.0'''
 |-
@@ Line 317: / Line 317: @@
 |-
 |  07:55
-| More information on this mission is available at
+| More information on this mission is available at [http://spoken-tutorial.org/NMEICT-Intro].
 [http://spoken-tutorial.org/NMEICT-Intro].
 |-

@@ Line 28: / Line 28: @@
 |  00:19
 | Here we are using:
-* Ubuntu version 11.10
+* '''Ubuntu version 11.10'''
-* JDK 1.6 and
+* '''JDK 1.6''' and
-* Eclipse 3.7.0
+* '''Eclipse 3.7.0'''
 |-
@@ Line 70: / Line 70: @@
 |-
 |  01:13
-| Which are common to the human being class.
+| which are common to the 'human being' class.
 |-
@@ Line 94: / Line 94: @@
 |-
 |  01:37
-|* And A set of behaviors called '''methods.'''
+|* And a set of behaviors called '''methods.'''
 |-
 |  01:40
-|  Now, let us see the syntax for declaring '''class'''es.
+|  Now, let us see the syntax for declaring '''classes'''.
 |-
@@ Line 138: / Line 138: @@
 |-
 |02:43
-| We will now create a '''Java class''' name '''Student'''.
+| We will now create a Java '''class''' named '''Student'''.
 |-
@@ Line 190: / Line 190: @@
 |-
 |  03:57
-|So, inside this '''class Student''', let me declare two '''variables''' '''Roll Number''' and '''Name'''.
+|So, inside this '''class Student''', let me declare two '''variables''' '''roll_Number''' and '''name'''.
 |-
 |  04:04
-|So, I will type '''int roll''' underscore '''number''' semicolon'.
+|So, I will type '''int roll''' underscore '''number''' semicolon.
 |-
@@ Line 214: / Line 214: @@
 |-
 |  04:30
-|This '''method''' will give the detail of each student.
+|This '''method''' will give the details of each student.
 |-
@@ Line 222: / Line 222: @@
 |-
 |  04:49
-|Now, this '''method''' will give the roll number and name of the Student.
+|Now, this '''method''' will give the roll_number and name of the Student.
 |-
 |  04:53
-|So, type '''System''' dot '''out''' dot  '''println''' within brackets and double quotes '''The roll number  is ''' we can type it as number is, close the double quotes plus '''roll_number''' semicolon .
+|So, type '''System''' dot '''out''' dot  '''println''' within brackets and double quotes '''The roll number  is ''' we can type it as number is, close the double quotes plus '''roll_number''' semicolon.
 |-
@@ Line 234: / Line 234: @@
 |-
 |  05:40
-|Now, inside the '''main method''' we will type: '''System''' dot '''out''' dot  '''println''' within brackets and double quotes '''We have created a class with two variables and 1 method.'''
+|Now, inside the '''main method''', we will type: '''System''' dot '''out''' dot  '''println''' within brackets and double quotes '''We have created a class with 2 variables and 1 method.'''
 |-
@@ Line 254: / Line 254: @@
 |-
 |  06:34
-|'''We have created a class with 2 variables and 1 method ''',
+|'''We have created a class with 2 variables and 1 method''',
 |-
@@ Line 266: / Line 266: @@
 |-
 | 06:50
-| So, in this tutorial, we learnt about a '''class''' in java and how to create a '''class''' in java.
+| So, in this tutorial, we learnt about the '''class''' in java and how to create a '''class''' in java.
 |-
@@ Line 274: / Line 274: @@
 |-
 |  07:10
-|And '''method''' '''printEmployee''' which displays the '''Employee''' information.
+|And '''method''' '''printEmployee''' which displays the '''employee''' information.
 |-
@@ Line 282: / Line 282: @@
 |-
 | 07:19
-|  watch the video available at [http://spoken-tutorial.org/What_is_a_Spoken_Tutorial]
+|  watch the video available at [http://spoken-tutorial.org/What_is_a_Spoken_Tutorial].
 |-
@@ Line 314: / Line 314: @@
 |-
 |  07:48
-| 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.
 |-
 |  07:55

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