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package{
import flash.display.Sprite;
public class Main extends Sprite{
public function Main(){
try {
drawRectangle(this, 100, 200);
drawRectangle(this, 300, 400);
}
catch(errObject:Error) {
this.graphics.clear( );
trace("An error occurred: " + errObject.message);
}
}
private function drawRectangle(sprite:Sprite, nWidth:Number, nHeight:Number):void {
if(isNaN(nWidth) || isNaN(nHeight)) {
throw new Error("Invalid dimensions specified.");
}
sprite.graphics.lineStyle(1, 0, 1);
sprite.graphics.lineTo(nWidth, 0);
sprite.graphics.lineTo(nWidth, nHeight);
sprite.graphics.lineTo(0, nHeight);
sprite.graphics.lineTo(0, 0);
}
}
}
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