Bikash Mainali

What should be the output?

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Bikash Mainali
·

1 min read

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

    //@Order(2)
    @Component
    class Lie implements CommandLineRunner {
        @Override
        public void run(String... args) throws Exception {
            System.out.println("Truth is behind the lies");
            System.out.println("This is working perfectly");
            throw new Exception("Does this work?");
        }
    }

    //@Order(1)
    @Component
    class Truth implements CommandLineRunner {
        @Override
        public void run(String... args) {
            System.out.println("Truth is in your eyes");
        }
    }
}

Output:
Truth is in your eyes
Truth is behind the lies
This is working perfectly
Exception in "Does this work?"

NOTE:
the order of execution of CommandLineRunner components is not guaranteed. If you want to specify the order of execution, you can use the @Order annotation along with the CommandLineRunner components.

Javaoutput