Difference between revisions of "Java/C2/For-Loop/English-timed"

|  Welcome to the spoken tutorial on '''for loop''' in java.

|  In this tutorial, you will learn how to use the '''for loop''' in Java.

|  For this tutorial, we are using:

* '''Ubuntu 11.10'''  

|  For this tutorial, you should have knowledge of '''relational operators''' and '''if statement''' in Java.

|If not, for relevant tutorials, please  visit  our website which is as shown. [http://spoken-tuitorial.org]  

|It consists of '''initialization''', '''loop condition''' and '''increment'''.

|Then it has the '''for block''' which keeps on executing till the '''loop condition''' is true.

|  So, switch to '''eclipse'''.

| So, inside the '''main''' function, type: '''int i''' semicolon.

|Then, '''for''' within parenthesis '''i ''' equal to '''0''' semicolon '''i ''' less than '''10''' semicolon '''i ''' equal to '''i''' plus '''1'''.

|This statement decides how the '''loop''' is going to progress.

| i =0 is the starting condition for the '''loop'''.

| i<10 is the '''loop''' running condition.

|If the condition is true then the '''for block''' will be executed.  

|That means, when 'i' becomes more than or equal to 10, the '''block''' is not executed.

| Then i= i+1 states how the '''loop variable''' is going to change.

|Here, the value of 'i' starts with 0.

|It keeps increasing by 1, for every iteration of the loop, until it becomes 10.

|Now, let us do something with 'i'.

| Inside the curly brackets, type: '''System''' dot '''out''' dot '''println''' and print '''i''' into '''i'''.

|So '''save''' and '''run''' the program.

|Now, let us print all the 2 digit numbers that are multiples of 3 or 5.

|  So, '''i''' should have values from 10 to 99.

|So, change '''i''' equal to '''0''' to '''i''' equal to '''10'''.

| And '''i''' less than '''10''' to '''i ''' less than '''100'''.

| Then, inside the curly brackets, we print the number only if it is a multiple of 3 or 5.

|So type:

|'''if''' within brackets '''i''' mod '''3''' double equal to '''0''' or within brackets '''i''' mod '''5 ''' double equal to '''0'''

|This statement checks whether 'i' is divisible by '3'or by '5'.

|Then, in curly  bracket, we print the value of 'i'.    

|So '''save''' and '''run''' the program.

| We can see that the numbers are either multiples of 3 or 5. In this way we use '''for loop''' in Java.

|In this tutorial we have learnt how to use '''for loop''' in java.

| For assignment, a  three digit number is called Armstrong Number if it is equal to the sum of cubes of its digits.

|  To know more about the Spoken Tutorial project,  

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| | The Spoken Tutorial project team: Conducts workshops using spoken tutorials,

| Spoken Tutorial project is a part of the Talk to a Teacher project and is supported by the National Mission on Education through ICT, MHRD, Government of India.

| More information on this Mission is available at '''spoken HYPHEN tutorial DOT org SLASH NMEICT HYPHEN Intro'''.

| This script has been contributed by '''TalentSprint'''. This is Prathamesh Salunke, signing off.