Illegal User Input Unhandled

[Nick Dances]

Player entered: .
Player expected: continued program execution, feedback from the program regarding the illegal character.
Player experienced: end of program, java.lang.NumberFormatException.
copy of stdout from lein run to java.lang.NumberFormatExeception:

$ > lein run
Retrieving org/clojure/clojure/1.6.0/clojure-1.6.0.pom from central
Retrieving org/sonatype/oss/oss-parent/7/oss-parent-7.pom from central
Retrieving nrepl/nrepl/0.5.3/nrepl-0.5.3.pom from clojars
Retrieving nrepl/bencode/1.0.0/bencode-1.0.0.pom from clojars
Retrieving clojure-complete/clojure-complete/0.2.5/clojure-complete-0.2.5.pom from clojars
Retrieving org/clojure/clojure/1.6.0/clojure-1.6.0.jar from central
Retrieving nrepl/bencode/1.0.0/bencode-1.0.0.jar from clojars
Retrieving clojure-complete/clojure-complete/0.2.5/clojure-complete-0.2.5.jar from clojars
Retrieving nrepl/nrepl/0.5.3/nrepl-0.5.3.jar from clojars
 0 | 1 | 2
===+===+===
 3 | 4 | 5
===+===+===
 6 | 7 | 8

Enter [0-8]:
4
 0 | 1 | 2
===+===+===
 3 | X | 5
===+===+===
 6 | 7 | 8

 0 | 1 | O
===+===+===
 3 | X | 5
===+===+===
 6 | 7 | 8

.
Exception in thread "main" java.lang.NumberFormatException: For input string: ".", compiling:(/tmp/form-init946414250826869657.clj:1:71)
        at clojure.lang.Compiler.load(Compiler.java:7142)
        at clojure.lang.Compiler.loadFile(Compiler.java:7086)
        at clojure.main$load_script.invoke(main.clj:274)
        at clojure.main$init_opt.invoke(main.clj:279)
        at clojure.main$initialize.invoke(main.clj:307)
        at clojure.main$null_opt.invoke(main.clj:342)
        at clojure.main$main.doInvoke(main.clj:420)
        at clojure.lang.RestFn.invoke(RestFn.java:421)
        at clojure.lang.Var.invoke(Var.java:383)
        at clojure.lang.AFn.applyToHelper(AFn.java:156)
        at clojure.lang.Var.applyTo(Var.java:700)
        at clojure.main.main(main.java:37)
Caused by: java.lang.NumberFormatException: For input string: "."
        at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
        at java.lang.Integer.parseInt(Integer.java:569)
        at java.lang.Integer.<init>(Integer.java:867)
        at sun.reflect.GeneratedConstructorAccessor1.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at clojure.lang.Reflector.invokeConstructor(Reflector.java:180)
        at game.core$get_human_spot.invoke(core.clj:65)
        at game.core$game.invoke(core.clj:73)
        at game.core$game.invoke(core.clj:79)
        at game.core$start_game.invoke(core.clj:90)
        at game.core$_main.invoke(core.clj:93)
        at clojure.lang.Var.invoke(Var.java:375)
        at user$eval5.invoke(form-init946414250826869657.clj:1)
        at clojure.lang.Compiler.eval(Compiler.java:6703)
        at clojure.lang.Compiler.eval(Compiler.java:6693)
        at clojure.lang.Compiler.load(Compiler.java:7130)
        ... 11 more

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