Hello. Please help me will this request in Java. Thank you.

I have a .txt file and I need to create a constructor in the given class, with no parameters to do the following:

// Open the file

// Create an array from the file

// Read and skip 2nd line of file (just go from 1st to 3rd line), then for each line split them into strings

// Find the first null index of the array

// Sort the file

** Preconditions: array must be not-null and not empty