You must provide a constructor with no arguments when you extend application. So you could do something like: public class SimpleSun extends Application { private Stage primaryStage; Configuration configuration; public SimpleSun() { this.configuration = Main.getConfig(); } //… and in your Main class: public static Configuration getConfig() { return new ConfigurationFromFile(); } Alternatively you can pass … Read more
Why do I get this error? Example As a real world comparison, what just happened is this conversation: Hey, how much gas is left in the tank of the car? What are you talking about, we don’t have a car. That is exactly what is happening in your program. You wanted to call a function … Read more
Why do I get this error? Example As a real world comparison, what just happened is this conversation: Hey, how much gas is left in the tank of the car? What are you talking about, we don’t have a car. That is exactly what is happening in your program. You wanted to call a function … Read more