Basic C++ Language Getting started with C++

[Umar Shah 0]

another form of the loop is do while this can be shown in the following example

int main(int argc, char argv[]){int i=0;do{printf ("Iteration no: %s\n",i);i = i +1;}while(i<10);return 0;}

[Umar Shah 0]

Next thing we would want to do is talk about arrays

An array is an ordered list of values.

#include<stdio.h>int main(int argc, char *argv[]){int arr[10];int j;for(int j=0;j<10;j++){arr[j] = j * 3;}for(int j=0;j<10;j++){printf("the %d th value of arr is \n",j,arr[j]);}return 0;}

the above example demonstrates initializing an integer array of size 10 with multiples of 3 in the first loop.

the next loop prints these vales in that order in which they were stored.

Next example demonstrates a two dimensional array.

#include<stdio.h>int main(int argc, char *argv[]){int arr[10][10];int i,j;for(i=0;i<10;i++){ for(int j=0;j<10;j++)  {  arr[i][j] = i * j ;  }}for(i=0;i<10;i++){ for(int j=0;j<10;j++)  {  printf("the arr[%d][%d] has value :%d \n",i,j,arr[i][j]);  }}return 0;}

[Umar Shah 0]

Next we can try to understand a basic philosophy that everything is done in functions.lets see how we can use some of the previous examples to understand basics of functions.

#include<stdio.h>void printArr(int arr[]);int main(int argc, char *argv[]){int array[10];int j;for(int j=0;j<10;j++){array[j] = j * 3;}printArr(array);return 0;}void printArr(int arr[]){int j;for(j=0;j<10;j++){printf("the %d th value of arr is \n",j,arr[j]);}}

the reult of this program is sam, it assigns and then prints the values of array;but the function of printing values is carried out by a separate function called printArr which does not return any value but carries out the task of printing the values.

[Umar Shah 0]

#include<stdio.h>void printArr(int arr[]);int getMultiple(int a, int ;int main(int argc, char *argv[]){int array[10];int j;for(int j=0;j<10;j++){array[j] = getMultiple(j, 3 ) ;}printArr(array);return 0;}void printArr(int arr[]){int j;for(j=0;j<10;j++){printf("the %d th value of arr is \n",j,arr[j]);}int getMultiple(int a, int {return a * b;}}

in this example the vales are assigned by calling the function getMultiple.this function returns the product of the arguments passed to it.

Edited March 26, 2008 by Umar Shah (see edit history)

[Miles 0]

Very good tutorial, I already have experiance in both C and C++, and these tutorials certainly should do better than what I done, that being trial and error and looking at already programmed programs for assitance, I'm glad Umar Shah has decided to expand on this.