Java Error “Exception in thread ”main“ java.lang.ArrayIndexOutOfBoundsException”

Question

Here is this simple code from my book it produces error message in netbeans and in compile version (.class) version running through Command prompt.

Error Message

Answer 1

If args[0] is causing an ArrayIndexOutOfBoundsException, then you didn't supply any command-line parameters. Test args.length; if it's 0, then handle the error.