please do in java firstname_lastname_assignment_6.zip ├── library │   └── docs │   └── StudentGrades.java Folder Structure Your project will contain three sub-directories: library test In the library directory, create the StudentGrades class. In the test directory, create the test application (Part 1).  StudentGrades Class Write a class encapsulating the concept of Student Grades. Use the class diagram above as well as the specific requirements below to develop your class: Class Members The attribute grades will store grades for students. StudentGrades(int) -  Initializes grades to a new array with the specified number of elements. The grade values are zero. StudentGrades(int[]) - Initializes grades to the specified array. Ensure that the reference to the grades is not accessible outside of the class. copyArray(int[]) : int[] - Returns a copy of the specified array. getGrades() : int[] - Returns a copy of the grades. setGrades(int[]) : void - Sets the grades. Ensure that the reference to the grades is not accessible outside of the class. getSortedGrades() : int[] - Returns a new array containing the values of the grades attribute sorted in ascending order. getHighestGrade() : int - Returns the value of the highest grade in the grades. getAverageOfGrades() : double - Returns the mean average of the values in the grades array. Formula: (grades[0] + grades[1] + …. grades[n]) / number of elements in array The toString will return a String representation of the class in the following format: toString Format =================== Student Grade =================== 1 {first element value} 2 {second element value} ... n {nth element value} Example =================== Student Grade =================== 1 79 2 54 ... n 82

please do in java

firstname_lastname_assignment_6.zip
├── library
│   └── docs
│   └── StudentGrades.java

Folder Structure

Your project will contain three sub-directories:

1. library
2. test

In the library directory, create the StudentGrades class. In the test directory, create the test application (Part 1). 

StudentGrades Class

Write a class encapsulating the concept of Student Grades. Use the class diagram above as well as the specific requirements below to develop your class:

Class Members

• The attribute grades will store grades for students.
• StudentGrades(int) -  Initializes grades to a new array with the specified number of elements. The grade values are zero.
• StudentGrades(int[]) - Initializes grades to the specified array. Ensure that the reference to the grades is not accessible outside of the class.
• copyArray(int[]) : int[] - Returns a copy of the specified array.
• getGrades() : int[] - Returns a copy of the grades.
• setGrades(int[]) : void - Sets the grades. Ensure that the reference to the grades is not accessible outside of the class.
• getSortedGrades() : int[] - Returns a new array containing the values of the grades attribute sorted in ascending order.
• getHighestGrade() : int - Returns the value of the highest grade in the grades.
• getAverageOfGrades() : double - Returns the mean average of the values in the grades array.
  • Formula: (grades[0] + grades[1] + …. grades[n]) / number of elements in array
• The toString will return a String representation of the class in the following format:

toString Format

Example