Difference between revisions of "Java/C2/Hello-World-Program-in-Eclipse/English-timed"
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| − | |Let us remove this line. Similarly every thing that is in between '''slash Astrix ''', and '''Astrix slash ''' is also | + | |Let us remove this line. Similarly every thing that is in between '''slash Astrix ''', and '''Astrix slash ''' is also a comment |
Revision as of 11:35, 31 October 2013
| Time | Narration |
| 00:01 | Welcome to the spoken tutorial on HelloWorld in Java on Eclipse. |
| 00:06 | In this tutorial, we are going to learn, how to write a simple Hello Worldprogram in Java using Eclipse. |
| 00:13 | For this tutorial we are using Eclipse 3.7.0 and Ubuntu 11.10 |
| 00:20 | To follow this tutorial you must have Eclipse installed on your system.
|
| 00:25 | And you must know how to create, save and run a file in Eclipse.
|
| 00:30 | If not, for relevant tutorial please visit our website as shown. |
| 00:36 | Here is a line of java code that prints the message Hello World
|
| 00:44 | Now let us try it on Eclipse. |
| 00: 46 | Press Alt and F2 and in the dialog box type eclipse and hit enter.
|
| 00:56 | Click Ok at the workspace and here we have the Eclipse IDE. |
| 01:09 | Let us add a new project.
|
| 01:12 | click File New and select Project |
| 01:19 | In the list of project select Java Project and click Next.
|
| 01:26 | In the project name ;Type DemoProject (please note that their is no space between Demo and ProjectD & P are in capital letters)
|
| 01:40 | Click Finish at the bottom right corner of the wizards. |
| 01:46 | DemoProject has been created. |
| 01:49 | Now let us add 'a new class to the project.
|
| 01:52 | Right click on the Project New select Class.
This opens a New Java Class Portlet
|
| 01:59 | In the class name type DemoProgram and in the method stubs select one that says Public, Static,Void main. |
| 02.13 | Click Finish at the bottom right corner of the wizard.
|
| 02.20 | We can see that the DemoProject has the source directory and a file called Demo program.Java, |
| 02:27 | This is because every class in Java has to be in its own file. Hence the class Demo Program can exist only in the file Demo program. Java |
| 02:40 | We can see that their is very little space for the editor and the view looks blurred . Let us minimise the other portlets and here we have the editor . |
| 02:55 | Notice that this line begins with two slashes which means this line is the comment and has nothing to do with our code. |
| 03:05 | Let us remove this line. Similarly every thing that is in between slash Astrix , and Astrix slash is also a comment
|
| 03:17 | So let us remove this comments also. |
| 03:22 | Here we have the bare bone of the code. |
| 03:27 | Now let us add the print statement, System.
|
| 03:35 | Notice that eclipse gives a list of all the possible completion. |
| 03:38 | For now we are going to type the command manually; |
| 03:43 | Out.println. In brackets in quotes type, HelloWorld |
| 03:56 | In java,Every statement has to end with a semicolon. |
| 03:59 | So let us add a semicolon. |
| 04:03 | Here this are complete HelloWorld program in Java. |
| 04:06 | Press Ctrl + S to save |
| 04:11 | Right click Run as java application.Run the code |
| 04:19 | As we can see on the output console, the message HelloWorld has been printed. |
| 04:24 | Now let us change the World to Java |
| 04:30 | Save it with Ctrl + S and Run it. |
| 04:41 | As we can see, the message that is printed now is Hello Java |
| 04:45 | Now let us understand what each part of code does? |
| 04:48 | The first line indicates that the class name is DemoProgram and its a Public class |
| 04:55 | The second line indicates that this is the main method. In other words the method from which execution starts with java. |
| 05:04 | As we know this is a print statement. |
| 05:07 | And here is how we write a HelloWorld program in 'Java |
| 05:14 | This brings us to the end of the tutorial. |
| 05:17 | In this tutorial we have learnt how to write a 'HelloWorld' program in java and also what each part of code does in java code. |
| 05:27 | As an assignment for this tutorial. |
| 05:29 | Create a java class by the name Greet it should bring Program Successful when executed.
|
| 05:37 | To know more about the spoken-tutorial project. |
| 05:39 | Watch the video available at[1] |
| 05:42 | It summarises the Spoken Tutorial project
|
| 05:45 | If you do not have good bandwidth, you can download and watch it
|
| 05:51 | The Spoken Tutorial Team |
| 05:53 | Conducts workshops using spoken tutorials
|
| 05:55 | Gives certificates for those who pass an online test |
| 05:59 | For more details, please write to contact@spoken-tutorial.org |
| 06:05 | Spoken Tutorial Project is a part of the Talk to a Teacher project |
| 06:09 | It is supported by the National Mission on Education through ICT, MHRD, Government of India |
| 06:14 | More information on this Mission is available at spoken HYPHEN tutorial DOT org SLASH NMEICT HYPHEN Intro |
| 06:19 | This tutorial has been contributed by TalentSprint. |
Contributors and Content Editors
Arya Ratish, Devraj, Gaurav, Kavita salve, Krupali, PoojaMoolya, Priyacst, Sandhya.np14, Sneha, Vasudeva ahitanal
