Program #3: -- This is explain in the middle to ending of lecture recording Write a program which calculates the grades based upon your assigned value using java switch statement. The program should have the following cases. Let's assume that the grade assigned is in the range of an "A". Do not use user input-scanner. This will use variable assignment to a set the value required for output Case 1: Grade A if scores are between 100 and 90 Case 2: Grade B if scores are between 89 and 80 Case 3: Grade C if scores are between 79 and 70 Case 4: Grade D if scores are between 69 and 60 Case 4: Grade F if scores are between 59 and 50 Default if any other grade and message displayed "print invalid grade" Program #4: Rewrite Program 3 name of program is "MyConversion" to use if/if else statements to produce the same output