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I am interested in how to call a variable that changes, such as customer1, customer2, customer3, etc. These customer variables are populated in this particular Class. I would like the program to automatically type that number when I perform something such as customer1.returnName(); if the user types a 1. without me making a case by case code. I would like the user to type the number of the customer and it automatically uses that number. What function is best for this?

robotlos
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Elsa Langenwalter
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    Use an array, or a `Map` – Elliott Frisch Mar 31 '16 at 23:59
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    You don't want a "progression" with a variable, but rather you want an "association", an association of a number with a specific Customer. An array or ArrayList would work well too if your numbers are monotonically increasing always and are stable. – Hovercraft Full Of Eels Apr 01 '16 at 00:04
  • The solution from @ElliottFrisch is a good one. However, also see why this question is problematic at [Increment Variable Names](http://stackoverflow.com/questions/7762848/increment-variable-names), or [Generating variable name dynamically](http://stackoverflow.com/questions/13286516/generating-variable-name-dynamically) – KevinO Apr 01 '16 at 00:06

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If you have numbered variables, then use a list. Something like 

ArrayList<Customer> customers = new ArrayList<Customer>();

customers.add(new Customer("name"));

customers.get(0).returnName();
OneCricketeer
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