Write three Java classes called Array01Test, Array02Test, and Array03Test in one application that use arrays to perform the operation.

Array01Test asks the user for the length of the array, has the user input integers in the array, and performs calculations (squares) and reversals on the integers in the array

Array02Test asks the user for the length of the array, has the user input integers in the array, and performs square roots (use the Math.sqrt() method) and the median. For an odd array length, the median is the one in the middle. For an even array length, it is the average of the two in the middle. If the sentinel value (999) is entered, issue a break statement to exit the For loop.

Array03Test asks the user to enter the amount of students, then last name and grade for each student, prints a listing of names and grades, the average, and the highest and lowest grade (name and grade).

Array01Test

Enter the amount of numbers in the array: 3

Enter a number: 9

Enter a number: 6

Enter a number: 8

The numbers entered are:

9 and 9 squared is 81

6 and 6 squared is 36

8 and 8 squared is 64

Average = 7.666666666666667

The numbers entered in reverse order are:

8

6

9

Next to last number entered was 6

Array02Test

Enter the amount of integers in the array: 5

Enter a number, or 999 to exit: 3

Enter a number, or 999 to exit: 1

Enter a number, or 999 to exit: 2

Enter a number, or 999 to exit: 4

Enter a number, or 999 to exit: 999

The numbers entered are:

3 and its square root is 1.732051

1 and its square root is 1.000000

2 and its square root is 1.414214

4 and its square root is 2.000000

The median is: 1.5

Array03Test

Enter the amount of students: 5

Enter a last name and grade: Smith 91

Enter a last name and grade: Jones 76

Enter a last name and grade: Harrison 78

Enter a last name and grade: Morris 99

Enter a last name and grade: Davis 98

The students and grades entered are:

Smith 91

Jones 76

Harrison 78

Morris 99

Davis 98

Average: 88.4

Highest: Morris 99

Lowest: Jones 76