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

Posted by Matthew Earlywine
Matthew Earlywine
2,560 Points

Illegal Argument Exception

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

Not sure if I am doing this right, do I use the try and catch ?

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");
        }
        kart.drive(2)   
    }
      try {
      battery. load (400);
     System.out.prinln("This will never happen");
      } catch (IllegalArgumentException iae) {
        System.out.println("Whoa there!");
        System.out.printf("the error was: %s\n", iae.getMessage());
      }
}

1 Answer

Geovanie Alvarez
Geovanie Alvarez
21,500 Points
Geovanie Alvarez
Geovanie Alvarez
21,500 Points

You have to do the try catch inside the main method

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("Whoa there!");
          System.out.printf("the error was: %s\n", iae.getMessage());
        }
    }
}