Java/C2/Strings/English-timed

Time	Narration
00:01	Welcome to the spoken tutorial on Strings in Java.
00:05	In this tutorial, you will learn how to:
00:08	create strings, add strings and perform basic string operations like converting to lower case and upper case.
00:18	For this tutorial, we are using Ubuntu 11.10, JDK 1.6 and Eclipse 3.7
00:26	To follow this tutorial, you must have the knowledge of data types in Java.
00:32	If not, for relevant tutorials, please visit our website as shown.
00:40	String in Java is a sequence of characters.
00:44	Before starting with Strings, we will first see the character data type.
00:50	Let us now switch to eclipse.
00:55	We have the 'Eclipse IDE' and the skeleton required for the rest of the code.
01:00	We have created a class StringDemo and added the main method.
01:07	Inside the main method, type: char star equal to in single quotes asterisk.
01:19	This statement creates a variable with the name star and of the type char.
01:25	It can store exactly one character.
01:28	Let us print the word using a few characters.
01:33	Remove the char line and type:
01:36	char c1 equal to in single quotes 'c';
01:43	char c2 equal to in single quotes 'a';
01:49	char c3 equal to in single quotes 'r';
01:55	We have created three characters to make the word car.
01:59	Let us use them to print the word.
02:02	Type:
02:04	System.out.print(c1);
02:12	System.out.print(c2);
02:22	System.out.print(c3);
02:31	Please note that I’m using print instead of println so that all the characters are printed on the same line.
02:39	Save the file and run it.
02:43	As we can see, the output is as expected.
02:46	But this method only prints the word but does not create one.
02:50	To create a word, we use the String data type.
02:54	Let us try it out.
02:57	Remove everything inside the main method and type:
03:03	String greet equal to "Hello Learner";
03:16	Note that 'S' in the word String is in uppercase.
03:19	And we are using double quotes instead of single quotes as delimiters.
03:25	This statement creates a variable greet that is of the type String.
03:31	Now Let us print the message.
03:33	System.out.println(greet);
03:44	Save the file and run it.
03:51	As we can see, the message has been stored in the variable and it has been printed.
03:57	Strings can also be added in Java.
04:00	Let us see how to do so.
04:04	I'm removing the Learner from the message.
04:08	We'll store the name in a different variable.
04:14	String name equal to “Java”;
04:22	Now, we’ll add the strings to make a message.
04:28	String msg equal to greet plus name;
04:42	change the 'greet' in the print statement (println(greet)) to 'message' (println(msg)) save the file and run it.
04:56	We can see that the output shows the greeting and the name.
05:00	But there is no 'space' separating them.
05:02	So, let us create a space character.
05:08	char SPACE equal to in single quotes ' '(space);
05:17	Note that I have used all uppercase letters in the variable name so that it is clear.
05:23	You can change it as you want.
05:26	Now, let us add the SPACE to the message.
05:29	greet plus SPACE plus name;
05:36	save the file and run it.
05:40	Now we can see the output is clear and as expected.
05:45	Let us look at a few string operations.
05:50	I’m changing a few characters of the word “Hello” to upper case and of the word “java” to uppercase.
06:05	Often, when users give input, we have values like this, in mixed case.
06:11	So, Let us run the file and see the output.
06:18	As we can see, the output is not clean.
06:22	So let us use the String methods to clean the output.
06:27	Type: greet equal to greet.toLowerCase();
06:41	This statement converts each character of the string greet to lowercase.
06:47	name equal to name.toUpperCase();
06:58	This statement converts each character of the string name to uppercase.
07:03	Save the file and Run it.
07:08	As we can see, the output is now clean after we have used the String methods.
07:13	This is how we create strings and perform string operations.
07:18	There are more String methods and we'll discuss them as we move on to complex topics.
07:26	This brings us to the end of this tutorial.
07:29	In this tutorial, we have learnt:
07:31	how to create strings, add strings
07:33	and perform string operations like converting to lower case and upper case.
07:39	As an assignment for this tutorial:
07:41	Read about the concat method of Strings in Java. Find out how is it different from adding strings.
07:50	To know more about the Spoken Tutorial project, watch the video available at the following link.
07:55	It summarizes the Spoken Tutorial project.
07:58	If you do not have good bandwidth, you can download and watch it.
08:03	The Spoken Tutorial Project Team:
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08:07	Gives certificates to those who pass an online test. For more details, please write to contact AT spoken HYPHEN tutorial DOT org.
08:17	Spoken Tutorial Project is a part of the 'Talk to a Teacher' project.
08:21	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
08:28	More information on this mission is available at the following link: spoken HYPHEN tutorial DOT org SLASH NMEICT HYPHEN Intro.
08:33	This tutorial has been contributed by TalentSprint. Thanks for joining.

Contributors and Content Editors

Gaurav, PoojaMoolya, Sandhya.np14, Sneha