2. Following is a program called TestString, to read a string and a character from command-line (command-line parameters). The program will count the number of occurrences of the character in the string, and display the results. Example run as following: java TestString exampleStringanc a 2 a(s) appears in "exampleStringanc. Complete the program according to the comment below. (5 marks) public class TestString { public static void main(String[] args) { } char ch = args[1].charAt(0); int num = count(args[0], ch); System.out.println(num + " " + ch + "(s) appear in \"" + args[0] + "\""); } //Define the count method here