Which modifier makes a variable accessible only from within its own class. O public protected O private O final
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A: ANSWER:-
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A: There are four types of access modifiers available: Default Private Protected Public
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A: According to the asked question, the solution is given below with a proper explanation.
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A: Answer : False.
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A: Java supports object oriented programming which helps to declare classes and instantiate objects.
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A: Actually, program is a executable software that runs on a computer.
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A:
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A: task - Identify the false statement about the specifiers -
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A: Actually, java is a object oriented programming language. It is a platform independent.
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A: The complete answer is given below with complete code and output .
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A: Answer :
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A: The above question is a simple case of inheritance in java. The answers are provided below.
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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- Each and every property and method that is declared in a class is given its own access modifier, which may be either private or public, depending on the context. in addition to being protected Make sure that you differentiate between each of them.Create a class called Rational to be able to perform arithmetic operations with fractions. testing your class and Write a program that presents a menu to the user to perform the desired action. User enters -1 value You can trade as much as you want. Use integer variables to represent the private data members (numerator and denominator) of the class. to this class Write a constructor function that initializes an object of the property as soon as it is declared. Constructive the function must contain default values for cases where no initial values are given and use the fractional number should store it in reduced form (i.e. the fraction 2/4 should be reduced to 1 for the numerator and 2 for the denominator). Provide public member functions for each of the following: ‐ The sum of two fractions - Subtraction of two fractions ‐ Multiplication of two fractions ‐ The division of two fractions In all of the above functions, results must be stored in a reduced form. Also, write the…The class Buildinghas 2 attributes: materialUsed and surfaceArea which are of type String and double respectively. The constructor of the class initialises all variables. The class Building also has accessor and mutator (Set and Get) methods for all variables and a method price that calculates and displays the building’s price as per the table below: Surface area price Less or equal to 100 square meters 1000/ square meters Greater than 1500 square meters 1200/square meters Implement the class Building. The class Houseinherits all of the above variables and has another variable noOfStorey which is of type int. House has a constructor that initialises noOfStorey, materialUsed and surfaceArea. The class also has an accessor method for noOfStorey and a method PrintDetails that displays the house details. Implement the class House. Implement a class Construct, with a main method, that will ask the user to input the,number of storey, material used and surface area.…
- Write a tester program to test the mobile class defined below. Create the class named with your id (for example: Id12345678) with the main method. Create two mobiles M1 and M2 using the first constructor. Print the characteristics of M1 and M2. Create one mobile M3 using the second constructor. Change the id and brand of the mobile M3. Print the id of M3. Your answer should include a screenshot of the output. Otherwise, you will be marked zero for this question. public class Mobile { private int id; private String brand; public Mobile() { id = 0; brand = ""; } public Mobile(int n, String name) { id = n; brand = name; } public void setBrand(String w) { brand = w; } public void setId(int w) { id = w; } Public int getId() {Create a class Car with parameters companyName, color, maxSpeed (Not more than 150) andcategory. Use appropriate data types and access specifiers. Use default constructor to create objectsof cars. (JAVA)Step 2: Identify three different classes that might contain each of these objects: myBlueDenimShirt presidentOfTheUnitedStates myPetCat myCousinJimbo This is about programming and understanding the difference about objects and class. Thanks
- Freezing and Boiling PointsThe following table lists the freezing and boiling points of several substances.Substance Freezing Point || Boiling PointEthyl Alcohol -173 || 172Oxygen -362 || -306Water 32 || 212Design a class that stores a temperature in a temperature field and has the appropriate accessor and mutator method for the field. In addition to appropriate constructors, the class should have the following methods:• isEthylFreezing. This method should return the boolean value true if the tempera-ture stored in the temperature field is at or below the freezing point of ethyl alcohol. Otherwise, the method should return false.• isEthylBoiling. This method should return the boolean value true if the tempera-ture stored in the temperature field is at or above the boiling point of ethyl alcohol. Otherwise, the method should return false.• isOxygenFreezing. This method should return the boolean value true if the tem-perature stored in the temperature field is at or below the freezing…DateTimerPicker and MonthCalender class definitions follow.Create the a Person class with the following:Class VariablesString firstnameString lastnameint birthmonthint birthdayint birthyearString ssnAll variables above should be private.ConstructorThe main constructor should take in all values and assign them to their respective private class variablesMethodsCreate a public getters and setters for firstname and lastname and SSNgetFirstnamegetLastnamesetFirstnamesetLastnameCreate a public getter method called getBirthdate, which will return a String composed of their birthday in month/day/year format. For example, if birthmonth=3, birthday=22, birthyear=2000, it should return the String "3/22/2000"Create a public method called verifySSN that takes in a String parameter and returns a boolean. It will check the parameter against the person's SSN and return true or false based on whether they match.
- Question 1Create a program that allows users to create a bank account. Users are to choose whichaccounts they want to create; either cheque or saving. To create an account, the user needs afull name and pin code. The pin code will be used before any operation is allowed.Bank_Account should be the base class and have two derived classes: Cheque_Account and Savings_account.Bank_Account should have the following methods as public:createAccount();checkBalance();withdraw();deposit();getAccountStatement();getPin();setAccountType ();getAccountType();Both withdraw and deposit should be virtual functions. All the account details – name, balance,and PIN CODE – should be stored in a struct.The program should have a menu that displays all the options for the user. ChequeAccount should have the following methods: withdraw(), getStatement(), writeCheques()viewAllCheques(). The cheque should be stored in a struct. A maximum of 10 cheques should beallowed. A cheque should have a name and amount.…Question: Choose the correct one. Note: Give me all the answers without explanation. 1.It is an instance of the class Select one: a. Method b. Object c. Data member d. Constructor 2.The encapsulation concept means. Select one: a. The class has private constructors and methods b. The data members are public access c. The data members are private access d. you can't access the members of the class even from the class itself 3.char A[]="hahahah"; char* p=&A[0]; *p='na'; p="CII"; cout<<A; the output is. Select one: a. CIIhahahah b. hahahah c. aahahah d. nahahah 4.Let A is char array as follows: char A[]=”hahahah”; the length of A Select one: a. 32 characters b. 7 characters c. 28 characters d. 8 characters 5.class A{int x;}; class B:public A{int y;public: void add(){y=++x;}};to correct the error. Select one: a. We should use protected: in class A b. We should use private: in class A c. We should use protected: in class B d. We should use public: in class B…Part A Create a FitnessTracker class that includes three data fields for a fitness activity: a String for the name of the activity as activity, an int for the number of minutes spent participating as minutes, and a LocalDate for the date as date. Create a default constructor that automatically sets the activity to running, the minutes to 0, and the date to January 1 of the current year. Overload the constructor so it receives parameters for each of the fields and assigns them appropriately. Includes methods to get each data field. Part B Create an application that instantiates two FitnessTracker objects. Prompt the user for values for one object, and pass those values to the three constructor parameters. Retain the default constructor values for the other object. Display the values for each object. An example of the program is shown below: Enter activity >> swimming Enter minutes spent swimming >> 90 Enter month >> 2 Enter day >> 24 Enter year >> 2021…