Inputer

Inputer is a simple, easy-to-use, well-documented class for prompting for and validating input from the command line.

Usage

See InputerPlay.java for usage examples. The basic syntax is:

String name = Inputer.getString("Enter your name");

Inputer will add ": " to a prompt that it thinks needs it. So the above prompt would actually be:

Enter your name:

Validation is done with predicates. For instance, this would get a positive integer:

int number = Inputer.getInt("Enter a positive integer", i -> i > 0);

Some predicates are provided for you. For instance, the following will return "m", "f", or "t":

String gender = Inputer.getString("Enter gender (m/f/t) ", Inputer.oneOfThese("m", "f", "t"));

A specialized version of the above is used to easily a yes/no response. This can be used in loops:

do {
    // Get data here
} while (Inputer.getYN("Is this correct?") == 'n');