Difference between revisions of "C-and-C++/C3/Arrays/English-timed"

|In this tutorial we will learn,    

|What is an '''array.'''

|Declaration of an '''array. '''

|Initialization of an '''array. '''

| Few Examples on array

| To record this tutorial, I am using,

|'''Ubuntu Operating System''' version 11.04  

|'''Single dimensional array. '''

|'''data-type name of the array and size'''

|example, here we have declare an integer array star which contain 5 elements

|The array index will start from star 0 to star 4

|We saw the declaration of an array

 

|example, here we have declared an integer array star with size 3. The elements of the array are 1,2 and 3

|Here the index will start from star 0 to star 2

|Now, lets us move to the examples

| Let me explain the code now

|This is our '''main function'''.  

 

| Here, we have declared and initialized an '''array star''' with size 3.  

| The elements of the array are 4, 5 and 6

|Then we have declared an '''integer variable sum'''

|Note that 4 will be store at index 0, 5 will be store at index 1 and 6 will be store at index 2

|This is our '''return statement.'''

|Please open the terminal window by pressing '''Ctrl, Alt and T ''' keys simultaneously on your keyboard.

|To compile type, '''gcc space array dot c space hypen o array''' and press '''Enter.'''

| To execute type, '''dot slash array '''.Press '''Enter'''

|Click on '''Save'''. Let us see what happens

| We see an error

|Now, click on '''Save'''

|Lets us execute. Come back to the terminal  

|First press '''Shift , Ctrl and S''' keys  simultaneously on your keyboard

|Now save the file with the extension dot '''cpp''' and click on '''Save'''

|Let us change the ''' header file''' as '''iostream'''

|Now include the '''using''' statement

|The declaration and initialization of an array is same in C++

|Hence no need to change anything here

|Delete the format specifier and back slash n, now delete the comma and type two opening angle brackets

|Delete the bracket here. Again type two opening angle brackets and within the double quotes type back slash n

|To compile type, '''g++ space array dot cpp space hypen o space array1.'''

|Here we have array1 because we dont want to overwrite the output parameter '''array''' for the file '''array dot c'''

|To execute type,''' dot slash array1''' .Press '''Enter'''

|We can see that it is similar to our C code

|Come back to our program

|Let us execute. Come back to our terminal

|Type 0 here 1 and 2. Click on Save

|Let us execute. Come back to our terminal

|Let us compile as before. Execute as before

|Now, we will go back to our slides

|Le us summarize

|In this tutorial we learned,

 

|Arrays.

|To declare Single Dimensional Arrays.

|To initialize Single Dimensional Arrays.

 

|example''' int star[3]={4, 5, 6}'''

|To add the element of the array, example sum is equal to star 0 plus star 1 plus star 2

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