Method ensureArguments

test/Test.java:92–100

(final String[] args,
                                      final int min,
                                      final int max)

  }

  private static void ensureArguments(final String[] args,
                                      final int min,
                                      final int max) {
    if (args.length < min) {
      fatalUsage("Not enough arguments, need at least " + min, 1);
    } else if (args.length > max && max > min) {
      fatalUsage("Too many arguments, need at most " + max, 1);
    }
  }

  public static void main(final String[] args) throws Exception {
    ensureArguments(args, 3, -1);