package com.weatherapp.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class WeatherAppApplication {

public static void main(String[] args) {
    SpringApplication.run(WeatherAppApplication.class, args);
}

}

Error: Main method not found in class com.weatherapp.demo.WeatherAppApplication, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application