What happens when a class is compiled, but there is not a constructor defined? Compiler warning Run-time error Syntax error The compiler generates a default constructor The object can only be used with inheritance
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- Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…Match the following: This keyword is to declare a user-defined package. Choose. Choose.. public import polymorphism Integer This is the most restrictive access specifier/modifier in Java. This is the Wrapper class for int datatype. A characteristic of OOPS which means one name, many forms. protected package private This class is defined inside another class. Inner class Inheritance outer class Encapsulation Double Finish attempt .› Create a student class in java Having 2 instance variables: int rollno; String name • Have 2 methods insertRecord() displayInformation() ▸ Create two objects of Student class > Initializing the value to these objects by invoking the insertRecord method on it. ▸ Displaying the state (data) of the objects by invoking the displayInformation method.
- is only needed when one general type of object can be broken down into more specific types of objects, where each of the more specific types have some of their own unique attributes or behaviors. tion 12 yet wered ked out of Select one: Flag ostion O a Inheritance O b. Overriding Oc Overloading O d Encapsulation1 Jljull Create a class Student in java with the following :attributes Name Age MobileNo Level a. Declare an empty and a parameterized constructor .in student class b. Declare an accessor method displayStudent() to .show the student details c. Declare a mutator method updateAge() to update .the age of student by 2 years d. Create 2 objects sl and s2 and call the methods QupdateAge() and displayStudentDynamic Apex: Write test class for this apex code(Not required the output) You are working on the project in which you have to create the apex code in which your task is to define the objects dynamically by using the method argument which is api name in string and a map of string, string as a key value pair. Class Code: public static void modifySobjectData(String str , Map mapofString) { //Retrive the type of Sobject by using the getGlobalDescribe Schema.SobjectType targetType = Schema.getGlobalDescribe().get(str); //Initalize the Object Sobject newobject = targetType.newSobject(); for(String s :mapofString.keySet(O) { newobject.put(s, mapofString.get(s)); } System.debug('newObject' + newobject); //Perform the DML if(targetType != null) insert newobject; } }
- Create three files: Student.java - Abstract Class definition ENGRStudent.java - Derived Class definition Client.java - Contains main() method (1) Implement the abstract Student class with the following specifications: 3 private members String name int ID int yearAdmitted 1 constructors (public) A constructor with that accepts the student’s name, ID, and yearAdmitted as arguments. These values should be assigned to the object’s name, ID, and yearAdmitted fields. 2 public member methods A method named toString() that returns the values of name, ID, and yearAdmitted with String data type A abstract method name getRemainingHrs with int data type (2) Implement the derived class ENGRStudent class with the following specifications: 3 final private members with the following values : int MATHSCHRS=32 int MAJOR_HRS=66 int GenEdHrs=29 3 private members: int mathScHrs; int majorHrs; int GenEdHrs; 1 constructors (public) A constructor that accepts the student’s name, ID, and yearAdmitted…Please help with the following: C# .NET change the main class so that the user is the one that as to put the name in other words. Write a driver class that prompts for the person’s data input, instantiates an object of class HealtProfile and displays the patient’s information from that object by calling the DisplayHealthRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // Instance created holding 6 parameters which are field with value HealthProfile heartRate = new HealthProfile("James","Kill",1978, 79.5 ,175.5, 2021 ); heartRate.DisplayPatientRecord();// call the patient record method } CLASS HeartProfile------------------- public class HealthProfile { // attibutes which holds the following value private String _FirstName; private String _LastName; private int _BirthYear; private double _Height; private double _Weigth; private int _CurrentYear; public HealthProfile(string firstName, string lastName, int birthYear, double height, double wt, int…Java - Constructors Create a class named Person that has the attributes: First name - String Last name - String Gender - String Age - Integer Address - String Create two constructors: one that accepts the first name and last name only and one that accepts all attributes. Accept inputs for all attributes and create two objects that use each constructor. Print their attributes. Inputs 1. Enter first name 2. Enter last name 3. Enter gender 4. Enter age 5. Enter address Marceus Azalithen Male 20 Azalithzith Sample Output Enter first name: John Enter last name: Doe Enter gender: Male Enter age: 19 Enter address: JDoe Object 1 First name: John Last name: Doe Gender: Age: Address: Object 2 First name: John Last name: Doe Gender: Male Age: 19 Address: JDoe
- When the inheritance is private, the private methods/functions in base class are in the derived class. Select one: Oa. None of Above O b. Inaccessible O c Accessible O d. Public1. Create the main method using pythone to test the classes. #Create the class personTypefrom matplotlib.pyplot import phase_spectrum class personType: #create the class constructor def __init__(self,fName,lName): #Initialize the data members self.fName = fName self.lName = lName #Method to access def getFName(self): return self.fName def getLName(self): return self.lName #Method to manipulate the data members def setFName(self,fName): self.fName = fName def setLName(self,lName): self.lName = lName #Create the class Doctor Type inherit from personTypeclass doctorType(personType): #Create the constructor for the doctorType class def __init__(self, fName, lName,speciality="unknown"): super().__init__(fName, lName) self.speciality = speciality #Methods to access def getSpeciality(self): return self.speciality #Methods to manipulate def setSpeciality(self,spc):…اسئلة الامتحان Which of the following members take * :values in test object Class Test (int xyz,; Static int xyz2; Static int sum(0} Void av(){} }test; a- xyz1 O b- xyz2 O C- sum d- av e- both a&b O