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

Berkan Sonmez
Berkan Sonmez
3,403 Points
Posted by Berkan Sonmez
Berkan Sonmez
3,403 Points

Can't solve the problem ! With code challenge!

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

How can I fix this?

Main.java 
public class Main {
    public static void main(String[] args) {
        GoKart kart = new GoKart("yellow");
          int battery = 2;
          public void isBatteryEmpty () {
            battery = 0; 
          }  
         public void drive() {
            battery-=;
          }
      }

          if (kart.isBatteryEmpty()) {
          throw new IllegalArgumentException("The battery is empty");
        }


      try {
        kart.drive(2);
      } catch (IllegalArgumentException iae) {
       System.out.printf("%s", iae.getMessage());
      }
    }
}

1 Answer

Christopher Augg
Christopher Augg
21,223 Points
Christopher Augg
Christopher Augg
21,223 Points

Hello Berkan,

The instructions say that Main.java is going to throw an IllegalArgumentException. Therefore, you do not need to throw it yourself like you are doing in your code. You only need to catch it and print the iae.getMessage(). Furthermore, you do not need to create the isBatteryEmpty or drive methods. Those methods are already part of the kart object that is instantiated. Below is working code to guide you: 

          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());
             }
          }
      }