1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BigorU [14]
2 years ago
7

Type (dog, cat, budgie, lizard, horse, etc.) Create a class that keeps track of the attributes above for pet records at the anim

al clinic. Decide what instance variables are needed and their data types. Make sure you use int, double, and String data types. Make the instance variables private. Write 2 constructors, one with no parameters and one with many parameters to initialize all the instance variables. Write accessor (get) methods for each of the instance variables. Write mutator (set) methods for each of the instance variables. In the main method of the Animal Clinic class, create 3 Pet objects by calling their constructors. Then call the accessor methods, mutator methods and toString() methods to test all of your methods.
Computers and Technology
1 answer:
Alenkinab [10]2 years ago
5 0

Answer:

If you did the exercise with two Dog objects, it was a bit boring, right? After all, we have nothing to separate the dogs from each other and no way of knowing, without looking at the source code, which dog produced which bark.

In the previous article, I mentioned that when you create objects, you call a special method called a constructor. The constructor looks like the class name written as a method. For example, for a Dog class, the constructor would be called Dog().

The special thing about constructors is that they are the path to any new object, so they are a great place to call code that initializes an object with default values. Further, the return value from a constructor method is always an object of the class itself, which is why we can assign the return value of the constructor to a variable of the type of class we create.

However, so far, we have not actually created a constructor at all, so how come we can still call that method?

In many languages, C# included, the language gives you a free and empty constructor without you having to do anything. It is implied that you want a constructor; otherwise there would be no way of using the class for anything, so the languages just assume that you have written one.

This invisible and free constructor is called the default constructor, and, in our example, it will look like this:

public Dog(){ }

Notice that this syntax is very similar to the Speak() method we created earlier, except that we do not explicitly return a value nor do we even declare the return type of the method. As I mentioned earlier, a constructor always returns an instance of the class to which it belongs.

In this case, that is the class Dog, and that is why when we write Dog myDog = new Dog(), we can assign the new object to a variable named myDog which is of type Dog.

So let’s add the default constructor to our Dog class. You can either copy the line above or, in Visual Studio, you can use a shortcut: type ctor and hit Tab twice. It should generate the default constructor for you.

The default constructor doesn’t actually give us anything new because it is now explicitly doing what was done implicitly before. However, it is a method, so we can now add content inside the brackets that will execute whenever we call this constructor. And because the constructor runs as the very first thing in an object’s construction, it is a perfect place to add initialization code.

For example, we could set the Name property of our objects to something by adding code such as this:

public Dog()

{

   this.Name = "Snoopy";

}

This example will set the Name property of any new objects to “Snoopy”.

Of course, that’s not very useful because not all dogs are called “Snoopy”, so instead, let us change the method signature of the constructor so that it accepts a parameter.

The parentheses of methods aren’t just there to look pretty; they serve to contain parameters that we can use to pass values to a method. This function applies to all methods, not just constructors, but let’s do it for a constructor first.

Change the default constructor signature to this:

public Dog(string dogName)

This addition allows us to send a string parameter into the constructor, and that when we do, we can refer to that parameter by the name dogName.

Then, add the following line to the method block:

this.Name = dogName;

This line sets this object’s property Name to the parameter we sent into the constructor.

Note that when you change the constructor’s signature, you get a case of the red squigglies in your Program.cs file.When we add our own explicit constructors, C# and .NET will not implicitly create a default constructor for us. In our Program.cs file, we are still creating the Dog objects using the default parameter-less constructor, which now no longer exists.

To fix this problem, we need to add a parameter to our constructor call in Program.cs. We can, for example, update our object construction line as such:

Dog myDog = new Dog(“Snoopy”);

Doing so will remove the red squigglies and allow you to run the code again. If you leave or set your breakpoint after the last code line, you can look at the Locals panel and verify that your object’s Name property has indeed been? Got it?

You might be interested in
your browsing the internet and realize your browser is not responding. which of the following will allow you to immediately exit
Mandarinka [93]

Answer:

Task Manager is the answer

8 0
3 years ago
Where should a user disable virus protection settings that might prevent the boot area of the hard drive from being altered?
leonid [27]

Answer:BIOS setup

Explanation:

BIOS setup is a program used alter or changes the settings of a computer hardware system,it is in the BIOS setup that the user of a company system can disable the Virus and other forms of protection which prevents the system from performing efficiently. To gain access to the BIOS setup one has to turn off the system and wait for up to 5seconds before turning on,press the Esc key constantly for some time until the Start up menu opens then press the F10 to gain access to the BIOS setup.

3 0
3 years ago
Which of the following would increase the Demand for jam?
gladu [14]
The answer would be B. An increase in the price of a complement.
8 0
3 years ago
Lianna is an Information Technology professional. She usually spends her days creating custom programs for her company by writin
marusya05 [52]
Liam a would need to contact the software developer. So the answer is B
6 0
3 years ago
The true or false questions.<br><br> 1.egrep can accept multiple filenames as input arguments.
BlackZzzverrR [31]

Answer: True  

Explanation: yes, it is true that egrep can accept multiple filenames as input arguments for example egrep -r "text1/text2", so this will search in all the sub directories . E grep is also known as 'grep -E' which belongs to the group of grep function and we used egrep to separate multiple patterns for OR conditions. This is also very less time consuming if you are going to search multiple input arguments in multiple different logs at the same time.

5 0
3 years ago
Other questions:
  • Suppose that a computer virus infects your computer and corrupts the files you were going to submit for your current homework as
    12·1 answer
  • Which one of the following oscilloscope controls is used to move the trace up and down the screen vertically
    14·1 answer
  • You want to discard your old computer and want to securely erase the data from your hard drive. What can you use to do this and
    6·1 answer
  • A(n) __________ describes a set of well-defined logical steps that must be taken to perform a task
    5·1 answer
  • CMS is a content management system that collects, organization, publishes, and manages creative content. Right...?
    9·1 answer
  • sandra has houseplants sitting on her kitchen windowsill, where it receives a lot of sunlight . what will most likely be the pla
    9·2 answers
  • E-What is the important of Recycle bin?<br>Ans:​
    12·1 answer
  • What is also known as computer Network?
    6·2 answers
  • Which common online presentation medium do people use to present their own articles?
    8·2 answers
  • How to do the for loop in python
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!