Given a character search for all occurrences of the character in the string and

Question

Given a character search for all occurrences of the character in the string and print the character as well as the next 3 characters(hint: use substr for this). Create a function printChar for the above task. This function takes in two arguments- the string and the character and prints out the result on the screen. It returns no value.

Note: Make sure to cast your string length into integer before using it. i.e. use: (int) str.length()

Example: Given the string abracadabra and the character a, your output should be-

abra

acad

adab

abra

a

Explanation / Answer

#include <iostream>
#include <string.h>

using namespace std;

/*printChar function definition, function takes in two arguments- the string and the character */
void printChar(string str, char ch)
{
//print string
cout<<"String is : "<<str <<endl;

//use: (int) str.length()
int l=(int) str.length();
int i;

cout<<"Print the character as well as the next 3 characters "<<endl;

//using for loop find character

for(int i=0;i<l;i++)
{
// if char found in string then print substring
if(str[i]==ch)
{
cout << str.substr(i, 4) << endl;
}
}

}

// main
int main()
{
// string str
string str="abracadabra";

// char a
char ch='a';

//calling printchar function
printChar(str,ch);

return 0;

}//end of main

-------------------------------------

output sample:-

String is : abracadabra
Print the character as well as the next 3 characters
abra
acad
adab
abra
a

---------------------------------------------------------------------------------------------

If you have any query, please feel free to ask.

Thanks a lot.

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