Using Java, Write a program to calculate the average test scores of each student and the class average. All these data are stored in a file (file name would be data.txt). The 1st number in the file is number of students (N), the 2nd number in the file is number of test for each student (M), the rest of N X M numbers are test scores.

The program MUST have the following two methods, in additional to the main method:

 public static double[] studentAvg (double[ ][ ] ) //input to the method is the N by M 2D array //output is 1D array of student's average

public static double classAvg (double[ ] ) //input to the method is the 1D array of student's average //output is the class average

You also need to use Scanner, FileInputStream, and IOException classes.

(1) Prompting the user to enter a file, then input all the test scores in the file into a 2D array and the output them

(2) Invoke studentAvg to calculate the average of each student

(3) Invoke classAvg to calculate the average of the class

14.8 Prog8 Read From a File (find avg) Write a program to calculate the average test scores of each student and the class average. All these data are stored in a file (file name would be data.txt). The 1st number in the file is number of students (N), the 2nd number in the file is number of test for each student (M). the rest of N X M numbers are test scores. Here is an example of the content in a data file (2 students and 3 test scores) 2 3 85.5 72 64.5 60.5 88 90 Here is an example of output Enter the file name: The data in the file are 85.5 72 64.5 60.5 88 90 There are 2 students The averages for each student are 74.00 79.50 The class average is 76.75 The program MUST have the following two methods, in additional to the main method (3 points): A method named studentAvg that calculates each student's average, the header of the method should be