I need help. Had similar quesiton to this but this time its under "Arrays Homework". This is for JAVA ECLIPSE

Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits):

Total: nnnnn.nnn

Average: nnnnn.nnn

Class name: FileTotalAndAverage

Test Case 1

Standard Input	Files in the same directory
double_input1.txt	double_input1.txt double_input2.txt

Please enter the file name: Total: -5,748.583 Average: -57.486 

Test Case 2

Standard Input	Files in the same directory
double_input2.txt	double_input1.txt double_input2.txt

Please enter the file name: Total: 112,546.485 Average: 56.273 

Test Case 3

Standard Input	Files in the same directory
double_input3.txtENTER double_input1.txt	double_input1.txt double_input2.txt

Please enter the file name: File 'double_input3.txt' does not exist. Please enter the file name again: Total: -5,748.583 Average: -57.486 

The code is suppose to be able to get these kind of test cases. Please help