wintergrades.txt

A- B+ B+ B- C A+ B+ C+ A- B- F D

Write a java program - Grade.java - that creates a symbol table which maps letter grades to numerical scores, according to the grading table below At A B+ B 4.33 4.00 3.67 3.33 3.00 2.67 2.33 2.00 1.67 1.00 0.00 Now use your program to: 1) Read in a list of letter grades from the file "Wintergrades.txt" 2) Compute and print the GPA (the average of the numerical scores of the corresponding letter grades) 3) Print out the MAX and MIN grades from the file. Use "Wintergrades.txt". file as input and Find results (GPA, MAX, and MIN