Java:

1. Write a method called minimum() that takes three double variables as arguments and returns the minimum of the three values. Write a method called maximum() that takes three double variables as arguments and returns the maximum of the three values. Do not use an if statement or a conditional operator (?:) in your solution. Write a main() method that tests minimum() and maximum() with three different sets of data.

2. Write a program that prompts the user to enter four integer test scores for each of three students. For each of the students, calculate and display the minimum test score, the maximum test score, the average of the test scores, and a letter grade A, B, C, D, F. Use a method for determining each of the calculations. Letter grades are calculated as follows: A = 90-100, B = 80-89, C = 70-79, D = 65-69, F = 64 or less. For determining letter grades, averages should be rounded to the next highest integer value (e.g., 89.6 is rounded to 90 for assigning a letter grade), but the actual average calculation should be rounded to the tenths position.