BCS 345: Java Programming CRN 94760 Fall 2017 Instructor: Dr. Jie Li Homework 4-Monday, October 16 Due Monday, October 30, 11:59PM on Blackboard Define and implement classes and use classes and objects to manipulate data. Properly Objectives: handle reference variables in a class. Tasks Write a program that will read student's ID, first name, last name, and 5 scores from an input file "hw4data.txt". calculates the average test score after the lowest test score dropped, and then assigns a letter grade to student using the following grade scale: 90