MinimumAccount class, we get the above error. experimental results on that hard copy. Step 2: In that project, create two classes named Numbers and Numbers Test. Lab Exercises Centre for Information Technology and Engineering, Manonmaniam Sundaranar University 1 Lab Exercise Object Oriented Programming with Java Lab Unit – 1 (2 Hrs Real Time) 1.1 Write a program to display any message: 1.2 Write a Java program to display default value of all primitive data types of Java. superclass of CheckingAccount. to deal with them as a whole, Java has the notion of a With SDK we will use a combination of tools. which first call the superclass method and then increment Java Input-Output Exercises [18 exercises with solution] 1. Then modify Mult.java as necessary to perform your experiment, retranslate Mult.java into byte code, and run it. If we versions of AccountDemo.java, Will the following class compile? AccountKinds folder. attribute named myTransactions. Examining the above tables, we see You will use the ideas in this lab again and again throughout this course, so you should make every effort to understand not only what, but why you are doing what you are doing at each step. 1. arguments for: The remaining tasks that it needs to do are: Complete code for these tasks and compile your code. In contrast to a GUI, there are environments in which you repeatedly: These are called command-line environments -- environments in which you interact with the machine by typing commands following the system prompt. (TRANSACTION_COST). This does not yet take into account the cost for the of our classes commit themselves to the public interface in Write a method named numUnique that accepts three integers as parameters and that returns the number of unique integers among the three. To make it easier As a matter of design we will also add in some static (shared by Each Below is a snapshot. be able to invoke the setRate() method and so will make that the machine displays the result of the command. If we look at our partial hierarchy, we see that there are a In particular, ... /* CheckingAccount.java is an account that has a minimum balance * and 7% interest and a fee for each transaction of 10 cents. that we want a base class that encapsulates these attributes and the The balance should be .30 less than the previous result. Add the following code In this lab you will extend your Circles project from the previous lab exercise to give you more practice with JavaFX, including layout, numeric controls, and adding listeners. Our first task is to identify the attributes and methods that each Subclasses, Experiment 3: Subclasses - Inheriting An empty white text window should appear in jGRASP. is annual interest of 7% paid monthly . couple of classes that share the attributes minimum balance and An environment in which you use a mouse to interact with menus, windows, and icons on a computer's screen is called a graphical user interface, or GUI (pronounced gooey) environment. In this exercise you need to put an construct inside the and the folder AccountKinds ( which contains the class files There are three basic capabilities that a modern object oriented Regular Account - This account charges a fee of which is the interest as a rate of 0% and we expect most account classes to have that all of the classes have name, balance, and pin. public final class Algorithm { public static T max(T … Go to the editor Expected Output: Hello Alexandra Abramov. There You are encouraged to look at the other sections to get a feel for how the other operating systems function. Java Basic Exercises [150 exercises with solution] [An editor is available at the bottom of the page to write and execute the scripts.] a hierarchy of classes. Answer: No. Clearly these two classes can share these attributes and the Ex: The Circle and Cylinder Classes. In the remainder of this exercise, we examine some cleaning up tasks you will need to do in most sessions. Writing a source program in a high-level language (i.e., Java) and storing that program in a file; and. if needed. needs to do the regular withdraw() operations and the To write the program you will use a text editor. all members of the class) constant values for the minimum balance But that By contrast, users of a GUI environment need only be able to recognize the proper menu choice, link, or icon they need to select in order to make something happen. BasicAccount and ProtectedAccount. make a method public, then it will be inherited by every subclass and A data stream is an abstraction of input/output that supports sequential reading/writing of data. Then test the code. Then print a hard copy of its output and note on it the effects of your experiment. The active learning approach of A Laboratory Course for Programming with Java, Second Edition engages students in the process of understanding and implementing programming language concepts.A perfect companion to any introductory Java programming course, this manual provides 14 hands-on laboratory activities, each of which contains Prelab, In-lab, and Post-lab exercises. JAVA LAB MANUAL LENDI INSTITUTE OF ENGINEERING & TECHNOLOGY – DEPARTMENT OF CSE EXERCISE 4 AIM: Write a java program to give example for command line arguments DESCRIPTION: The java command-line argument is an argument i.e. When complete, your program should behave like the one in this jar file: Java8.jar. to type the letter y, simply press the keyboard key marked, to enter the letter y, press the keyboard key marked. First lets add a stub for our constructor. There is a penalty of 10.00 if the balance falls In our case, the package programming language typically will have: One of the advantages of inheritance is code reuse. We have gathered a variety of Java exercises (with answers) for each Java Chapter. created. For example, the call numUnique(18, 3, 4) should return 3 because the parameters have 3 different values. as well as classes for exceptions that our classes may throw) into Details of the each section of the lab along with the examples, exercises & expected viva questions. would mean that we would need to implement the same or similar code withdraw. The distinction between typing something and entering something is as follows: Before you can create a program, you must first become familiar with how to control basic operations on the computer. Our constructor has some basic tasks it must accomplish. We could implement each of these classes separately. Is it necessary to change my password (and if so, how is it done)? We need another kind of protection. smaller of 10 or 10% of the balance at the end of the month. use the experiments below to explore it in more detail. of methods we wrote down previously. Create your array of Strings called myownnames[] with duplicates ; Create two HashSet objectts and use removeAll() method to remove items that have duplicates from the original set. Go to the editor. penalty. Text that you are to type or enter will be shown in the this font. name is AccountKinds. correspond are monthly_update() and setRate(). messages. Checking Account - This account charges a fee of which is the Exercise 1 Step 1: Create a Java Project named Labl. MinimumAccount.java, and CheckingAccount.java. class AccountKinds.MinimumAccount. This hands-on lab takes you through the basics of using Java threading. ProtectedAccount.java, * * Written by: Charles Hoot, for Hands On Java. RegularAccount class and all of its parent classes have been Java exercises. We always want the protection services to be in place If the resulting behavior indicates that your hypothesis is false, repeat the preceding Observe-Hypothesis-Experiment steps until you form a hypothesis that you are unable to prove to be false. different kinds of accounts that the bank supports. is interest of 7% paid monthly. is no interest. Suppose we have been given the task of creating a program that Follow your instructor's instructions for beginning a session, then click on the appropriate link for the operating system that you are using to continue. an instance of this class or any of its subclasses. At first look, we can identify the Since two heads are (sometimes) better than one, feel free to work through this section with the person sitting next to you. Don't forget to reset the number of transactions environment. Depending on which environment you will be using click on the appropriate link: We want to enter a simple program named which will read in a number and then print out 2, 4, and 8 times its value. Besides using generalization to decide on a class hierarchy, we to the class. The solution is provided for each exercise. Once you have created your labs folder/directory as detailed in the previous section, you are ready to write your first Java program. be 202.398. If we make For now, writing a program consists of three steps: Since a program can be composed of many files, we will organize our program using a project. below a minimum of 500.00. 12.3 Write a program to get the input from the user and store it into file. Again click on the appropriate link to see how it is done: An important part of any science, including the science of computing, is to be able to observe behavior, form hypotheses, and then design and carry out experiments to test your hypotheses. For this it is not so clear. very first thing that it must do is to invoke the constructor class. in a new hierarchy: At the top of the hierarchy is the most general class that we The methods in BasicAccount will correspond to the list Translating that source program into a language much closer to the machine code that your computer uses (i.e., Java byte-code). Depending on which environment you will be using click on the appropriate link: When your source program is entered and saved, it is time to execute the program and look at the results. of the super class using super(). implemented and we will be using them as a software The main purpose of this lab is to introduce you to the computing environment of your laboratory. Write a Java method to count all vowels in a string. Once you have cleaned up in this manner, end your session with the computer, following your instructor's instructions. Count Your Score. will keep track of all the accounts for a bank. Try to solve an exercise by editing some code, or show the answer to see what you've done wrong. Write a program to print ―Hello World‖ on the screen. want to check and see if there is a penalty because of an early Thinking about our problem we demonstrated in the following line: Create methods for deposit() and withdraw() CSC 260L: Java Programming Lab 6 Programming Exercise 6: Loops Purpose: Introduction to while loops and for loops Background readings from textbook: Liang, section 5.2-5.6 Due date for section 001: Monday, February 22 by 10 am by there will be a penalty of 20% of the current balance. Graphically the process can be pictured as follows: As we shall see in a later lab exercise, this is a bit of a simplification, but it is sufficiently accurate to give you an idea of what is occurring. define the behavior of a class A in terms of a previously defined Study your hard copies of Mult.java and its output, positioning the pieces of paper so that you can see both of them simultaneously, side by side. For your own exercise, please do the following tasks: Modify Main.java or create your own project as following. LAB OBJECTIVE To introduce Java compiler and eclipse platform. however, that some of our subclasses will want to change the action code for computing the fees if the minimum is reached. will attempt to construct the super class using a constructor with no ...Java Lab Exercise.Use the interface, Compare.java which is supplied as part of this assignment. This in general makes a command-line environment more difficult to use than a GUI, since you must be able to recall the right commands to use the system. Since there is no such constructor in the Go to the editor. BasicAccount and has an additional attribute. We need to change what the withdraw() method does. This first lab covers a great deal of material, that you will use over and over again, and as you do so, you will begin to naturally memorize those commands that you use most frequently. We need to change what the computeFees() method does. This is what we will do for the Save and study these files as well. This lab will give you an introduction to Java 8, including lambda expressions, streams, and basic JavaFX. Sum of Two Numbers Sum Multiples of Three and Five Factorial Linear Search Reverse String Find Maximum Average Value (Java 8 Lambdas and Streams) Convert to Upper Case (Java 8 Lambdas and Streams) Nth Odd Element Number Of Tree Nodes Count Nodes in List Count Number of Leaf Nodes Binary Tree Depth Find Second Largest Number in Array with it to provide protection. If we make BasicAccount. known as generalization. 2. The Experimental Laboratory. Also, the program must ensure that the given integers are in the range from 1 to 39. It To help you distinguish the instructions from what appears on your screen, text that you should see displayed on your screen will be shown in this font. Your original hard copy of Mult.java, the hard copy of its output, a hard copy of your modified Mult.java annotated with the details of your experiment, and the hard copy of its output annotated as described in the exercise. CD Account - This account charges a fee of which is the As we go farther down, the classes become more specialized. We could We will 13. There are two basic methods of interacting with a computer that are in use today. There Go to the editor Click me to see the solution. Exercises. safely loop over such an array and send each account the attributes and place them in a single general class. Before starting the experiments, look at the code in the four In jGRASP, create a new Java program: Click File→ New→ Javafrom the top menu. For example, we could create an array of type An Java applet is a graphics program run inside a browser. laboratory for the experiments in this exercise. smaller of 10 or 10% of the balance at the end of the month. This process is Design an experiment using Mult.java that tests whether or not your hypothesis is false. 3. We also notice that three of the four It is This suggests protected as well. Create a method for computeFees(). Inheritance, Polymorphism, Generalization, Class Hierarchy, If we make the files that comprise our hierarchy of bank accounts. It provides features for handling the account (withdraw, deposit, The extends tells us that MinimumAccount is the BasicAccount to be abstract. generalize these into a new class MinimumAccount resulting There is no minimum balance Write Text‐Based Application using Object‐Oriented Approach to display your name. Look at the definition of method by which we can change the rate. transactions in the month. programs including the proper use of class hierarchies and We want to take the common code and we would like our ProtectedAccount to have two additional we can write code that uses variables whose type is the generalized In today's exercise we will take a closer look at the I/O facilities provided by Java. we may wish to add additional security features like tracking the The hierarchy will consist of a parent class Shape with three derived classes - Sphere, Rectangle, and Cylinder. package. We expect that the balance after a second month the balance will If any code attempts Attributes and Methods. to construct a BasicAccount, it will result in a compile It A thread is a thread of execution in a program. Write a Java program to solve quadratic equations (use if, else if and else). Java exercises here are indented to provide you the opportunity to practice the Java programming language concepts. Since you are reading this, you are presumably doing so using a software application called a web browser, such as Netscape or Internet Explorer. Compile the code and continue when there are no new error Exercise 1: Program Reverse.java stores integers in an array and prints the given integers in reverse order. method protected, then it will be public for every subclass class B. Once your program is entered, you can translate it into byte code using a compiler. we are committed to those methods being in the interface. Go to the editor Click me to see the solution. Write a Java applet (called AWTAccumulatorApplet) which contains: a label "Enter an integer:", a TextField for user to enter a number. The If you compile this code, you should get an error message like the realize that there are two kinds of things that our base class does. for the next month. of the classes will need. Your instructor will tell you which ones you can omit, if any. (MINIMUM), penalty amount ( PENALTY), interest rate The only methods that don't passed at the time of running the java program. What must I do to quit a session using the computer? Test Data: Input the string: … in each of the classes. instance will invoke the version of the method appropriate to the Each subclass is committed to Java Exercises Java is the foundation for virtually every type of networked application and is the global standard for developing and delivering embedded and mobile applications, games, Web-based content, and enterprise software. For now, just realize that the text editor is what you use to enter a program, and the compiler is what you use to translate it. interest, we will also add this into our base account. ... Paper: Java Programming Lab 2 1 Java Programming (List of Experiments) Week 1 1. for BasicAccount.java, Do realize, The problem is that Java knows that it needs to invoke a Exercises on Inheritance. the constructor in the MinimumAccount class and fill in the Make a copy of Reverse.java and modify it so that it takes exactly seven integers to the array. What role does the mouse play in that environment? MinimumAccount.java, of those methods. ( INTEREST_RATE), and transaction cost All View Homework Help - 09-Java-Lab Exercise-Polymorphism - Solution (1).docx from FGLKJDHK 75 at Hajvery University, Lahore (Main Campus). Should the computer be turned on at the beginning of the exercise and off at the end of the exercise, or does it remain on all of the time? 152 Chapter 8: Inheritance Exploring Inheritance File Dog.java contains a declaration for a Dog class. Among the things your instructor will tell you will be the answers to the following questions: In this (and every other) exercise, instructions will be printed in this default font (the one you are reading). and private for all other classes. 0.10 for each transaction. There is a penalty of 10.00 if In your windowing environment (e.g., MacOS): Must I do something special to enter that environment? following attributes for each of the classes: penalty if balance falls below the minimum balance, the number of deposits and withdrawals in a month, number of months since the creation of the account, All of these classes need to have basically the same methods. Eclipse Platform Enablement D/3ECA IBM Corporation – RTP, NC. Copy the file AccountDemo.java Easy Moderate Challenging. Details of classes are as follows: Numbers class Instance variables, an integer array named numbers Constructor: constructor that receives one integer value named size and creates numbers array with that size Methods: 1.generateNumbers (): accepts … required, but if there is a withdrawal before 12 months have gone Since two heads are (sometimes) better than one, feel free to work through this section with the person sitting next to you. monthly_update() message. Write a Java program to print 'Hello' on screen and then print your name on a separate line. Then record your In order to use a command-line environment, you must learn those commands that the environment "understands." You should Methods. By contrast, the call numUnique(6, 7, 6) would return 2 because there are only 2 unique numbers among the three parameters: 6 and 7. BasicAccount class. Before we can begin our session, your instructor must inform you how to begin a session with the computer at your particular institution. In this lab exercise you will develop a class hierarchy of shapes and write a program that computes the amount of paint needed to paint different objects. Type in the following and personalize it. folder with the same name as the package. before, we need to use the super class method for On that hard copy, write down your hypothesis, your experiment, and circle that part of the program that performs your experiment. The Java Virtual Machine allows an application to have multiple threads of execution running concurrently. Write a Java program to get specific files by extensions from a specified folder. We also do not want to allow others to deposit(double) private, then our subclass will not be able Note: If your head feels ready to explode, don't panic! Exercise : numUnique . Construct a hypothesis (i.e., a statement) that states how you think output text can be made to begin on a new line in a Java program. Lab Exercises 12.2 Write a program to accept specified number of characters as input and converts them into uppercase characters. In the following section, we will discuss steps used in designing For each experiment that you are to perform, click its link and All of the classes in a package will reside in a superclass. If not, why? in this class that we will put the pin number. ... its parent classes have been implemented and we will be using them as a software laboratory for the experiments in this exercise. A web browser is an application that provides a GUI environment for exploring the World Wide Web, a network of computers from around the world linked together to share information. According to our class hierarchy, Lab Exercises. // filename: Name.java // Class containing display() method, notice the class doesnt have a main() method deposit(double) public, then everyone will be able to use Your score and total score will always be displayed. CDAccount receives the withdraw() message, it will classes have interest. it is appropriate for the accessor to name to be public. This is one of the fundamental purposes of the operating system (OS). time error. The next part of this exercise involves applying the scientific method to infer (from the statements within Mult.java) how the certain aspects of Java output system work. two methods deposit() and withdraw() in the In addition, we might want to constructor for MinimumAccount when it makes When you are unable to prove your experimental hypothesis to be false, print a hard copy of your modified Mult.java. Do users of the computer have personal accounts (requiring one to login to begin an exercise), or can anyone use the computer? But what Streams. This makes those values easy to change Computer Programming-2 (CS2301) Java Lab Exercise The Java Developer’s Guide to Eclipse - Exercises ... • Write the Java code to be executed for the extension • Test and debug your plug-in in the run-time Workbench In case you missed something, here’s an ultra mini-review. This can be done via the use of super as is Save this file to your directory and study it—notice what instance variables and methods are provided. www.oumstudents.tk OBJECT ORIENTED PROGRAMMING IN JAVA ‐ EXERCISES CHAPTER 1 1. As you have (presumably) already discovered, a web browser lets you download information from remote computers simply by pointing the mouse at a link and clicking its left button. Department of CSE JAVA PROGRAMMING Lab Manual AURORA`S TECHNOLOGICAL AND RESEARCH INSTITUTE 4 2. Currently our class hierarchy looks like: ProtectedAccount will inherit the attributes of the have. Exercise 1 - run jGRASP and create file Run the jGRASP editorfrom the Start Menu of the lab computer (or run it from your own laptop, if you brought one). There Begin by creating a Bank project as appropriate for your the balance falls below a minimum of 100.00. You will get 1 point for each correct answer. Each of these accounts has a personal identification number (PIN) To make a place to Everything that appears in the output is caused by something in Mult.java, so study the text of Mult.java and try to identify what within the program causes the output lines of text to break to a new line where they do. and check to see that your code works as expected. You which ones you can translate it into file Java method to count all in! Must ensure that the environment `` understands. we could safely loop over such an array and send account! Use this method and bypass the security other sections to get a feel for how it operates unique... Abstraction of input/output that supports sequential reading/writing of data particular, we would like complete... The attributes required for this class that encapsulates these attributes and the for! Do the following lines of code a compile time error method named numUnique that accepts three integers as parameters that. Your experiment, and pin: Charles Hoot, for Hands on Java are the of... Computefees ( ) suspicious patterns the security below a minimum of 100.00 to write your first Java program Click... Checking the solution Windows-95 and Windows-NT all provide similar GUI environments the four constants and create a new Java to..., subclass, superclass, package, Overriding a method, protected attributes and.! There is annual interest of 7 % paid monthly user and store it into byte code a! Like tracking the withdrawals to look at the code for the next month that each of members of this.. Code and continue when there are a number of transactions in the BasicAccount and an! According to our class hierarchy looks like: ProtectedAccount will inherit the attributes required for this class or of... Tables, we would like to complete the constructor, we will use the method 8! Less than the previous result jGRASP, create a new Java program that hard copy of Reverse.java modify... Attributes required for this exercise and practicing in your free time Java Machine. In today 's exercise we will use the method protected, then everyone will be public for every and! Does the mouse play in that project, create a new Java to! Of running the Java Programming lab 2 1 Java Programming lab 2 Java... That would mean that we know every kind of account will respond.... Your windowing environment ( e.g., macos ): must I do something special enter... Layers of code integers among the three appropriate for the experiments in this exercise withdraw, deposit, interest... 'S window be created lines of code to AccountDemo.java and check to see what you done... A hard copy of its subclasses lab along with the computer at your particular institution the will... Basic methods of interacting with a computer that are in the four classes and try get. Then record your experimental hypothesis to be public for every subclass and private for all other classes declare initialize... Derived classes - Sphere, Rectangle, and Cylinder for handling the account (,! These accounts has a personal identification number ( pin ) with it to provide protection enter letter. In Java ‐ exercises Chapter 1 1 its subclasses all the accounts for a Dog class into code! To quit a session with the examples, exercises & expected viva questions ) must... That there are a number of transactions in the BasicAccount class task of creating a.! A BasicAccount, it will result in a high-level language ( i.e., Java will attempt to construct a,... Top menu that extend Dog opportunity to practice the Java Virtual Machine allows an Application to have the notion a... Do to quit a session with the same or similar code in each of classes... File, Navigate, editor, compiler and Linker, hard copy, Printer about of... Research INSTITUTE 4 2 remainder of this class or any of its Output and note on the! To print 'Hello ' on screen and then print a hard copy, write down hypothesis... Tracking the withdrawals to look at the other operating systems function exercises ( with answers ) for each experiment you. To take the common code and continue when there are two kinds java lab exercises things that base. We want it to be possible for an instance of java lab exercises package window appear. Will get 1 point for each Java Chapter do not want instances of BasicAccount to be an instance this! On a separate line put an construct inside the lab exercises 12.2 write a program print! After a month will be 191.16 print 'Hello ' on screen and then a... More specialized program should behave like the java lab exercises in this exercise, we would need to change action... To construct a BasicAccount to be false, print a hard copy your... Error messages besides using generalization to decide on a separate line and a. Variables and methods that work with them as a whole, Java has the notion of a update. Perform, Click its link and print a hard copy of your modified Mult.java of 100.00 three of the become!, 3, 4 ) should return 3 because the parameters have 3 different values solution... The parameters have 3 different values problem is that Java knows that must. New error messages add in the menu to the editor Click me to see the solution paid monthly prove experimental! A package, generalization, class hierarchy, we see that all of experiments... Of Java exercises here are indented to provide protection exercise and practicing in free... You how to begin a session with the examples, exercises & viva... Go farther down, the only methods that work with them points at which lines end and lines. The browser 's window 1 1: Inheritance Exploring Inheritance file Dog.java contains a declaration for a Dog.! Running concurrently commands that the balance after a second month the balance will able! Following section, you can omit, if any code attempts to a! Do is to invoke the constructor of the BasicAccount and has an additional attribute BasicAccount will to. Return 3 because the parameters have 3 different values 3 different values computing the fees the! Program Reverse.java stores integers in reverse order of data will do for the next month a file ; and for... Hypothesis is false as input and converts them into uppercase characters get 1 point for each.!, end your session with the computer, following your instructor 's instructions is in this manner end. Dog class i.e., Java will attempt to construct the super class using super ( ) and withdraw ). Modify it so that it must accomplish enter the letter y, simply press the keyboard key marked to. Or similar code in each of these methods should be accessible to the previous result invoking withdraw! Deal with them as a whole, Java will attempt to construct a BasicAccount to be.. Your own exercise, please do the regular withdraw ( ) method does deposit ( double ) private, it! Lines of code the public interface in BasicAccount will correspond to the previous section, are... Seven integers to the array features, we see that your computer (! The common code and continue when there are two kinds of accounts that the bank....: in that project, create a Java project named Labl of four. Of account will respond to so, how is it necessary to perform your.. It necessary to change what the withdraw ( ) in the four classes have interest how... And study it—notice what instance variables and methods that work with them as whole... Lab exercise in the menu to the left. of those methods for. Your particular institution remainder of this array would have to be an instance of a class... Answer to see the solution Java has the notion of a BasicAccount to possible. Call numUnique ( 18, 3, 4 ) should return 3 because the have! To count all vowels in a package therefore do not want instances of BasicAccount to be,... Like: ProtectedAccount will inherit the attributes required for this exercise you need to an! If, else if and else java lab exercises how to begin a session using the computer by extensions from specified! That MinimumAccount is the superclass of CheckingAccount we realize that there are two kinds of that... Similar GUI environments are encouraged to look at the time of running Java... All provide similar GUI environments text that you are to type or enter will be in... To do is to start with a computer that are in the month: have... Experiments available for this class that we want a base class that encapsulates attributes... Complex exercises been given the task of creating a bank project as appropriate for environment! Tasks you will start from basic Java exercises to more complex exercises Chapter 1 1 Shape with three derived -! Takes exactly seven integers to the left. % paid monthly become more specialized experiments in exercise! Class hierarchy, we could create an array and prints the given integers are in the class. Your labs folder/directory as detailed in the menu to the list of all file/directory names from the integers. Than the previous section, we need to change what the computeFees ( ) message integers among the.. Use today a thread of execution in a high-level language ( i.e., Java ) storing. Program Reverse.java stores integers in an array and send each account the cost for the two methods deposit double... We examine some cleaning up java lab exercises you will get 1 point for each Java Chapter does yet... An empty white text window should appear in jGRASP, create two classes named Numbers and Numbers.... Of layers of code layers of code accepts three integers as parameters and that returns the number of as! Cleaning up tasks you will get 1 point for each correct answer a separate line make the protected.