Throw an exception from a method : Error « Development « Flash / Flex / ActionScript

1. Flash / Flex / ActionScript
2. Development
3. Error

Throw an exception from a method

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        try {
          trace("This code is about to throw an error.");
          displayMessage( "" );
          trace("This line won't run");
        }
        catch (errObject:Error) {
          trace("The catch block has been called.");
          trace("The message is: " + errObject.message);
        }

    }
    private function displayMessage(message:String):void {
      if(message == undefined) {
        throw new Error("No message was defined.");
      }
      trace(message);
    }
  }
}

        

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