Spring Questions and Answers – Bean Scopes

This set of Java Spring Multiple Choice Questions & Answers (MCQs) focuses on “Bean Scopes”.

1. A bean can be requested by:-
a) getBean method
b) reference from another bean using autowiring, property etc
c) all of the mentioned
d) none of the mentioned
View Answer

2. Which attribute is used to set the scope of the bean?
a) setScope
b) scope
c) getScope
d) none of the mentioned
View Answer

3. Which one is the default scope of the beans?
a) Prototype
b) Session
c) Request
d) Singleton
View Answer

4. Which scope creates a new bean instance each time when requested?
a) Singleton
b) Prototype
c) Session
d) Request
View Answer

5. Session Creates a single bean instance per HTTP request, only valid in the context of a web application?
a) True
b) False
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6. Which of the following are considered valid beans?
a) Singleton
b) Prototype
c) All of the mentioned
d) None of the mentioned
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7. What will be the output?

public class ShoppingCart 
{
    private List<Product> items = new ArrayList<Product>();
    public void addItem(Product item) 
    {
       items.add(item);
    }
    public List<Product> getItems() 
    {
       return items;
    }
}
 
   <beans ...>
	<bean id="aaa" class="com.shop.Battery">
	<property name="name" value="AAA" />
	<property name="price" value="2.5" />
	</bean>
	<bean id="cdrw" class="com.shop.Disc">
	<property name="name" value="CD-RW" />
	<property name="price" value="1.5" />
	</bean>
	<bean id="dvdrw" class="com.shop.Disc">
	<property name="name" value="DVD-RW" />
	<property name="price" value="3.0" />
	</bean>
	<bean id="shoppingCart" class="com.shop.ShoppingCart" />
   </beans>
 
   import org.springframework.context.ApplicationContext;
   import org.springframework.context.support.ClassPathXmlApplicationContext;
   public class Main 
   {
	public static void main(String[] args) {
	ApplicationContext context =
	new ClassPathXmlApplicationContext("beans.xml");
	Product aaa = (Product) context.getBean("aaa");
	Product cdrw = (Product) context.getBean("cdrw");
	Product dvdrw = (Product) context.getBean("dvdrw");
	ShoppingCart cart1 = (ShoppingCart) context.getBean("shoppingCart");
	cart1.addItem(aaa);
	cart1.addItem(cdrw);
	System.out.println("Shopping cart 1 contains " + cart1.getItems());
	ShoppingCart cart2 = (ShoppingCart) context.getBean("shoppingCart");
	cart2.addItem(dvdrw);
	System.out.println("Shopping cart 2 contains " + cart2.getItems());
	}
   }

a) Shopping cart 1 contains (AAA 2.5, CD-RW 1.5)
Shopping cart 2 contains (AAA 2.5, CD-RW 1.5, DVD-RW 3.0)
b) Shopping cart 1 contains (AAA 2.5, CD-RW 1.5)
Shopping cart 2 contains (DVD-RW 3.0)
c) BeanCreationException
d) None of the mentioned
View Answer

8. In above question if scope of shoppingCart named bean is prototype, then what will be the output?
What will be the output?
a) Shopping cart 1 contains (AAA 2.5, CD-RW 1.5)
Shopping cart 2 contains (AAA 2.5, CD-RW 1.5, DVD-RW 3.0)
b) Shopping cart 1 contains (AAA 2.5, CD-RW 1.5)
Shopping cart 2 contains (DVD-RW 3.0)
c) BeanCreationException
d) None of the mentioned
View Answer

9. Which interface is used to perform initialization of beans?
a) InitializingBean
b) Disposablebean
c) None of the mentioned
d) All of the mentioned
View Answer

10. Which interface is used to perform destruction of beans?
a) InitializingBean
b) Disposablebean
c) None of the mentioned
d) All of the mentioned
View Answer

11. Alternate way of initialization method is:-
a) init-method attribute
b) afterPropertiesSet
c) destroy-method attribute
d) none of the mentioned
View Answer

12. Alternate way of destruction method is:-
a) init-method attribute
b) afterPropertiesSet
c) destroy-method attribute
d) none of the mentioned
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13. Which annotation is used as a substitute of initialization method?
a) @PostConstruct
b) @PreDestroy
c) None of the mentioned
d) All of the mentioned
View Answer

14.Which annotation is used as a substitute of destroy method?
a) @PostConstruct
b) @PreDestroy
c) None of the mentioned
d) All of the mentioned
View Answer

15. Which configuration can be used for Dependency Injection?
a) XML Configuration
b) Annotation Configuration
c) Java Based Configuration
d) All of the mentioned
View Answer

Sanfoundry Global Education & Learning Series – Java Spring.
To practice all areas of Java Spring, here is complete set of 1000+ Multiple Choice Questions and Answers.

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