Create a separate class called seatingChartthat has an  array of student objects as a private instance member of the seattingChart class.  The array of student objects should be size 20. The seatingChart class must also have these methods:public void addStudent(String first, String last, int id, int seatnum) This method should add one student to the specified seat number on the seating chart. Position 0 of the array represents the seat closest to the teacher s desk.  Java project代写 The array index will represent each seat number for the seating assignments.public int findStudent(String first) This method should search the seating chart and return the seat number of a specified student first name.  Remember, The array index will represent each seat number for the seating assignments, so this method should return the array index number as the seat number.  This method should use the binary search algorithm described in the modules.Java project代写public void swapStudent(String first, int targetSeat) This method should find the students name in the array by calling the findStudent method, and then move the student object from his or her original seat to the target seat as a swap.  No students should be lost;  if the target seat is not empty, the students will trade seating assignments.Java project代写public String toString() This method will return a string that holds the entire seating chart, but this string will only include each seat number (empty or filled) and only the first name of the student in that seat. You can choose how the information is formatted in the string, but be kind to your client and make it readable. Java project代写

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