Requirements: build a function that can find all the occurrences of a character in a string.

The function should be named find$\_$a$\_$char$()$ and takes two parameters: the first one takes

in the string and the second one takes in the character to be found. Use find$\_$a$\_$char$("$Bobby

had the bat at the second base", $\text{'}$b$\text{'})$ to test your function. The output should be formatted

like:

#$1$ @index $2$

#$2$ @index $3$

Hint: You may use a while$-$loop to continue checking to the end of the string, and use string

method find$()$ to locate the indexes of the character in the string. Or you can use a for$-$loop

to keep checking the string character by character and check if it is the same as the second

parameter.