Write a Java program that computes a student's total score. Input -test1 score, test2 score, final score, assignments from the user Processing- use the formula: total score = 15% * testiscore + * final score + 30% * assignments 15% * test2.score + 40% - Output-the studept's total score (float, 2 decimals) Testing-test your program with the following input data: test1 = 95; test2 = 80; final -90; assignments-80 The expected result is 86.2 Modify the program so that you can assign a letter grade according to the following scheme: A: total score > 90 B: >= 80 total score = 70 total score = 60 total score