Language is java

Objective: In this assignment, we ask you to implement a student grade calculation program. Step 1. Your program will get add(adding a grade for a student) commands. User can enter an add command as below: add add add and so on. Note: Please, note that if the StudentID is entered for the first time, you need to add Student first. Otherwise, you need to add the grade to the existing student. There can be up to 10 grades for a student. Note: Studentin needs to be at this format: 2 digits number, 3 characters, 5 digits number For example, 12ABC12345. If the format is wrong, the program will give a wrong input message. Step 2. After adding all grades, your program will get calc(calculating the average) commands. With this command, your program will calculate the average for the entered grades for a student. Simply, you will sum up all grades, and divide by the total number of grades for that student. User can enter a calc command as below: calc The output will be as follows: :