please help

Exercise#2: Complete the following program to do the following: import java.util.Scanner; public class Mystery { public static void main(String[] args) { Scanner input = new Scanner(System.in); String sentence= "Coding in Java is easy" //Complete here the code here ) a. Change the first character to lowercase. b. Change every 'i' to 'l'. c. Print the length of the sentence. d. Print the index of the third 'a' in the sentence. e. Print the sentence in capital letters. f. Use method(s) from the String class to change the sentence to "coding in Java is fun". g. Print the substring from position 7 to 12. h. Substring the first word in sentence and then print if its equal to "coding" or not