springIOC: Beans Life Cycle (Java)

HelloWorld.java
================

package myspringIOC;

public class HelloWorld {
    private String message;
 
    public void init(){
 
        System.out.println("I am going through Init");
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
       // System.out.println("I am setter....");
        this.message = message;
    }


 
    public void destroy(){
 
        System.out.println("I am going through destroy");
    }
 
 
}

HelloWorldConfig.java
======================

package myspringIOC;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class HelloWorldConfig {
 
    @Bean(initMethod = "init",destroyMethod = "destroy")
    public HelloWorld hello(){
    return new HelloWorld();
    }
 
}
AnnotationTest.java
===================
package myspringIOC;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;


public class AnnotationTest {
    public static void main(String[] args) {
 
    AbstractApplicationContext context = new AnnotationConfigApplicationContext(HelloWorldConfig.class);
    HelloWorld helloWorld = context.getBean(HelloWorld.class);
    helloWorld.setMessage("HI Bean how are you?");
        System.out.println(helloWorld.getMessage());
        context.registerShutdownHook();
 
         
    }
 
 
}