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Java Java Objects (Retired) Harnessing the Power of Objects Handling Exceptions

Andrea Kim
Andrea Kim
653 Points

Preview (Output) gives me no info on my error. Challenge Task 1 of 1

Challenge Task 1 of 1

The code in Main.java is going to throw an IllegalArgumentException when the drive method is called. Catch it and warn the user.

I am not seeing the problem with my code. There is no error shown in my output, but it tells me "Bummer!..."

Main.java
public class Main {
    public static void main(String[] args) {
        GoKart kart = new GoKart("yellow");
        if (kart.isBatteryEmpty()) {
          System.out.println("The battery is empty");
        }
       try {
         kart.drive(2);
       } catch (IllegalArgumentException iae) {
       System.out.println("Not enough  battery.");
       }
    }
}
Andrea Kim
Andrea Kim
653 Points

Bummer! Please print out the exception's message to the console using the System.out object.

...but nothing on the Preview pane / Output.html area.

2 Answers

Well, you are printing your own message "Not enough battery.", rather than "exception message" (can be retrieved via "iae.getMessage()" call) as stated in the exercise. Try the following:

public class Main {
    public static void main(String[] args) {
        GoKart kart = new GoKart("yellow");
        if (kart.isBatteryEmpty()) {
          System.out.println("The battery is empty");
        }
        try {
          kart.drive(2);
        }
        catch(IllegalArgumentException iae){
          System.out.println(iae.getMessage());
        }
    }
}