This question deals with java programming with reading files and putting data into array lists/arrays.

It also includes creating classes.

1.Text files that need to be processed

There are 4 text files that need to be read, which are:

(image of contents of txt files are attached below)

clients.txt

\f\fo I B,bathroom renovation,99@,20186212 3,new stovetop,3@6@,20186308 11,leaking taps,26@.10,261712B4 11,repair water damage,75@,20171222 6,fencing.2110,2617169 1,emergency tree removal,4@0@,2@17B821 1,driveway resurface,2163.5,20171014 2,new light fittings,575,20171624 19.new light fittings,575,20171@24 19,blocked toilet,300,2@171123 8,broken window.25,2176919 2@,unblock sink,199.99,2@170914 1@,lacksmith key jammed in lock,299.99,2@17@918 10,roof replacement,2000,26171627 14,install security window screen,15@0,20171111 14,misc plumbing repairs,390,2@171215 14.painting,3000,2@180111 18.new carpet,2@@@,2018@216 12.new carpet,25BB,20171218 12,replace bathup,860,20171113 15,replace cracked wardrobe mirror,20@,2@171215 \f