2. Reading Files Create a class with a method that, given a string representing a file name, returns an integer with the number of characters in the file. For example, if the file has 10 characters, your method must return the number 10.
1. Square Roots
Create a class with a method that, given an integer, returns an array of double-precision floating point numbers (known in Java as double), each of which is a square root of a number between 2 and the parameter to the method. For example, if the parameter is 5, the method should return an array of 4 doubles, with approximate values 1.4142135623, 1.7320508075, 2.0, and 2.2360679774. Your method should check the validity of the parameter, and take appropriate action if the parameter is invalid.
2. Reading Files
Create a class with a method that, given a string representing a file name, returns an integer with the number of characters in the file. For example, if the file has 10 characters, your method must return the number 10.
3. Main Class
Create a class HW1.java with a main method that does both of the following: calls the method from part 1 with a random integer between 0 and 10, and prints each of the numbers in the result. The numbers should all be printed on the same line, separated by commas, and with a newline at the end. calls the method from part 2 with each file name specified in the command-line arguments to the main method (see here if you don't remember how to use command-line arguments in Eclipse). For each result, the file name and the number of characters should be printed, one on each line, as in this example:
hello.txt 77
world.txt 199
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