Refer to the following Date class declaration: Here is a client program that uses Date objects:

Refer to the following Date class declaration: Here is a...

Key Concepts

Class Declaration

A class declaration defines the blueprint for objects by specifying the data attributes (typically known as fields or instance variables) and the behaviors (methods) that the objects of that class will have. It establishes the structure and capabilities of the objects created from the class and sets the basis for encapsulation within object?oriented programming.

Object Instantiation

Object instantiation is the process of creating an individual instance of a class. In a client program, this involves calling a constructor of the class to allocate memory and initialize the object’s state, thereby enabling the use of the object's methods and attributes in the application.

Constructor Overloading

Constructor overloading is the concept of having multiple constructors within a class, each with a different parameter list. This allows objects to be instantiated in various ways based on the information available at the time of creation, offering flexibility in how an object is initialized in the client program.

Transcript

00:01 Okay, so here we have a question pulled from barron's ap computer science 7th edition.

00:06 We're given the date class on the right here that has three properties, day, month, and year.

00:13 We have the default constructor and regular constructor that passes all three arguments and then the getters for each.

00:19 And then a print statement at the end that just plainly prints out the date's actual date in the format of month, date, year.

00:29 And here in the question we're actually asked, here the client program is using the date objects class and what's going to happen is the first method within birthday stuff is going to utilize a date object for find birthdate and it's just going to return the birthdate.

00:48 And then the second method is going to be public static void.

00:53 That's just going to be what's called in the actual client program here and it's going to store the date with a find birthdate method and just use it as its instance variable.

01:06 And so the question's asking, which of the following is the correct replacement for code to get birthdate? so this block right here is what we're wondering what to put in place.

01:19 So we have a couple options here.

01:23 One has just a system out with the enter birthdate with the month, day, and year.

01:29 And the looks to be the most correct so far just based on each of the statement lines.

01:36 Firstly it asks the user for the input...

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