Question

Java programming help needed 

 Question 21

 An attribute that is shared by all objects of the class is coded using

 an instance variable

 a static variable

 an instance method

 a static method

 Question 22

 When you implement a method that is defined in a superclass, you

 the original method.

 overload

 override

 copy

 call

 Question 23

 What modifier should you use on a variable so that it can only be referenced inside its defining class.

 public

 private

 protected

 default

 package

Answer 1

21. Answer: a static method

• Static method attribute can shared all objects of the class.

22. Answer: override

• Override is nothing but same method and same number of paramters and datatypes. So when implement a mehtod that is defined in superclass then need to override that method.

23. Answer: private

• private modifier is only to accessible within the class only.

24. Answer: third option is correct: "The default constructor of Parent is invoked" followed by "The defualt constructor of Child is invoked"

• Here object is creating for child class. But is it is sub class of Parent class. So first will will call the parent class constructor then child class constructor.

Note: my friend if you have any qeutions or queries comment below. Thank you my friend.