instructions.md

You are developing a system to help the staff of a football/soccer club's web site report on matches. Data is received from a variety of sources and piped into a single stream after being cleaned up.

1. Output descriptions of the players based on their shirt number

The team only ever plays a 4-3-3 formation and has never agreed with the 1965 change to the rules allowing for substitutions, never mind enlarged squads.

The player descriptions are as follows:

1 -> "goalie"
2 -> "left back"
3 & 4 "center back"
5 -> "right back"
6, 7, & 8 -> "midfielder"
9 -> "left wing"
10 -> "striker"
11 -> "right wing"

Implement the static PlayAnalyzer.onField() method to output a player description based on their shirt number.

PlayAnalyzer.onField(10);
// => "striker"

2. Raise an alert if an unknown shirt number is encountered

Modify the PlayAnalyzer.onField() method to throw an IllegalArgumentException when a shirt number outside the range 1-11 is processed.

PlayAnalyer.onField(13);
// => Throw IllegalArgumentException