Write the following static methods. Assume they are all in the same class. Assume the reference variable input for the Scanner class and any class-level variables mentioned are already declared. All other variables will have to be declared as local unless they are parameter variables. Use printf. 1. A method that prompts for the grade level and returns it as an integer. Print the message "Invalid grade level! Try again." if the grade level is out of range. Re-prompt until a valid entry is made. Declare a local year variable to hold 1 for Freshmen, 2 for Sophomore, etc. a. Prompt 1. Freshmen 2. Sophomore 3. Junior 4. Senior Enter the number for your grade level