a- Write a complete Java program that includes a recursive java method countChar that takes a character and a string as arguments and finds the number of occurrences of that character in the string. You should include in your answer a screenshot that shows the program and the output provided that the given character s should be equal to your first name initial letter, and the string should be your name (consider all characters are lower case). For example, if your name is abdallah, then a is the char and abdallah is the string that should be used.

b- Using the above method, show all the recursive steps (composition and decomposition),if we call countChar('s', "Sessions").