Pratik kamble at 07:10, 23 June 2014

2014-06-23T07:10:25Z

Krupali at 05:56, 24 July 2013

2013-07-24T05:56:42Z

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Krupali at 09:09, 23 July 2013

2013-07-23T09:09:19Z

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Krupali: Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00:01 | Welcome to the spoken tutorial on '''Strings in Java'''. |- | 00:05 | In this tutorial, you will learn how to |- | …'

2013-07-23T06:19:05Z

Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00:01 | Welcome to the spoken tutorial on '''Strings in Java'''. |- | 00:05 | In this tutorial, you will learn how to |- | …'

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{| border=1
|| ''Time'''
|| '''Narration'''
|-
| 00:01
| Welcome to the spoken tutorial on '''Strings in Java'''.

|-
| 00:05
| In this tutorial, you will learn how to

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| 00:08
| '''create strings''', '''add strings''' and ''''perform basic string operations''' like converting to lower case and upper case.'''

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| 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 knowledge of '''data types in Java.'''

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| 00:32
| If not, for relevant tutorial please visit our website as shown

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| 00:40
| '''String''' in Java, is a sequence of characters.

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| 00:44
| Before starting with '''Strings, '''we will first see the character data type.

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| 00:50
| Let us now switch to eclipse

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|00:55
| we have the eclipse IDE and the skeleton required for the rest of the code.

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| 01:00
| We have created a class '''StringDemo '''and added the main method.

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| 01:07
| Inside the '''main''' method, type '''''char star '''equal to in single''' '''quotes''' asrteicks '''''
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|01:19
| This statement creates a variable with name '''star '''and of the type '''char.'''

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| 01:25
| It can store exactly one character.

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| 01:28
| Let us print a word using a few characters.

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| 01:33
| Remove the char line and type ,

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| 01:36
| '''char c1 '''''equal to in single quotes''''' c'''

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| 01:43
| '''char c2 '''''equal to in single quotes''''' a'''

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| 01:49
| '''char c3 '''''equal to in single quotes''' ''r'''

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| 01:55
| We have created three characters to make the word '''car'''.

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| 01:59
| Now let us use them to print the word.

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| 02:02
| type,

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| 02:04
| '''System.out.print(c1);'''

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| 02:12
| '''System.out.print(c2);'''

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| 02:22
| '''System.out.print(c3);'''

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| 02:31
| Please note that I’m using '''print''' instead of '''println''' so that all the characters are printed on the same line.

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| 02:39
| save the file and run it.

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| 02:43
| As we can see, the output is as expected.

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| 02:46
| But this method only prints the word but does not create one.

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| 02:50
| To create a word, we use the '''String''' data type.

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| 02:54
| Let us try it out.

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| 02:57
| remove everything inside the main method and type

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| 03:03
| ''' String greet '''''equal to '''''Hello Learner ''''':

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| 03:16
| Note that '''S '''in the word '''String''' is in uppercase.

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| 03:19
| And we are using double quotes instead of single quotes as delimiters

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| 03:25
| This statement creates a variable '''greet''' that is of the type '''String'''

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| 03:31
| Now Let us print the message.

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| 03:33
| '''System.out.println(greet);'''

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| 03:44
| Save the file and run it
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| 03:51
| As we can see, the message has been stored in the variable and it has been printed.

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| 03:57
| Strings can also be added in Java.

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| 04:00
| let us see how to do so.

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| 04:04
| | I'm removing the '''Learner''' from the message.

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| 04:08
| We'll store the name in a different variable.

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| 04:14
| '''String name '''''equal to '''''“Java”;'''

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| 04:22
| Now we’ll add the strings to make a message

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| 04:28
| '''String msg '''''equal to '''''greet '''''plus '''''name ; '''

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| 04:42
| change the greet '''println(greet)''' in the print statement to message '''println(msg)''' save the file and run it.

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| 04:56
| We can see that the output shows the greeting and the name.

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| 05:00
| But there is no space separating them.

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| 05:02
| So Let us create a space character

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| 05:08
| '''char SPACE '''''equal to '''''' in single quotes ''' space'''

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| 05:17
| Note that I have used all uppercase letters in the variable name so that it is clear.

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| 05:23
| You can change it as you want.

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| 05:26
| Now let us add the space to the message.

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| 05:29
| '''greet '''''plus '''''SPACE '''''plus '''''name'''

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| 05:36
| save the file and run it

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| 05:40
| Now we can see the output is clear and as expected.

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| 05:45
| Let us look at a few string operations.

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| 05:50
| I’m changing a few characters of the word “Hello” to upper case and of the word “java” to uppercase.

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| 06:05
| Often, when users give input, we have values like this, in mixed case.

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| 06:11
| So Let us run the file to see the output.

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| 06:18
| As we can see t he output is not clean.

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| 06:22
| So let us use the String methods to clean the input.

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| 06:27
| type, '''greet '''''equal to '''''greet.toLowerCase();'''

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| 06:41
| This statement converts each character of the string '''greet''' to lowercase

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| 06:47
| '''name '''''equal to '''''name.toUpperCase();'''

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| 06:58
| This statement converts each character of the string '''name '''to uppercase.

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| 07:03
| Save the file and Run it.

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| 07:08
| As we can see, the output is now clean after we have used the String methods.

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| 07:13
|This is how we create strings and perform string operations.

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| 07:18
| There are more String methods and

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| 07:19
| We'll discuss them as we move on to complex topics.

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| 07:26
| This brings us to the end of this tutorial.

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| 07:29
| In this tutorial we have learnt

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| 07:31
| '''how to create strings ,addstrings '''

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| 07:33
|and perform ''' string operations like converting to lower case and upper case'''

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| 07:39

| | As a assignment for this tutorial.

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| 07:41
| Read about the '''concat''' method of Strings in Java. - Find out how is it different from adding strings.

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| 07:50
| To know more about the '''Spoken Tutorial''' project, watch the video available at the following link.

|-
| 07:55
| * It summarises the Spoken Tutorial project

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| 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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| 08:05
| Conducts workshops using '''spoken tutorials'''.

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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

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| 08:21
| It 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 links'''spoken HYPHEN tutorial DOT org SLASH NMEICT HYPHEN Intro'''

|-
| 08:33
| This tutorial has been contributed by '''TalentSprint'''. Thanks for joining.

|}

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Java/C2/Strings/Gujarati - Revision history

Pratik kamble at 07:10, 23 June 2014

Krupali at 05:56, 24 July 2013

Krupali at 09:09, 23 July 2013

Krupali: Created page with '{| border=1 || ''Time''' || '''Narration''' |- | 00:01 | Welcome to the spoken tutorial on '''Strings in Java'''. |- | 00:05 | In this tutorial, you will learn how to |- | …'