please write this program by JAVA

Problem 3 (20 points) (Occurrences of a specified character) Write a method that finds the number of occurrences of a specified character in a string using the following header: public static int count(String str, char a) For example, count("Welcome", 'e') returns 2. Write a test program that prompts the user to enter a string followed by a character then displays the number of occurrences of the character in the string