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Hello KucerakJM,

I have attempted to implement the array solution and was able to gather the data in a (String) line of text. My problem is that I don't know how to use substring or split to...

Hello,

Using an ArrayList is not mandatory so I will use GregBannon's suggestion. Will the array work if the file length varies (if I have a text file with 20 account numbers)?

I used an...

Hello, the objective of my program is to read a file called input_data.txt and to calculate an invoice in which my program will print the results in a formatted text file. I haven't advanced to this...