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- class first { public: void setX(); void print() const; protected: int y; void setY(int a); private: int x; }; Suppose that class second is derived from class first using the statement: class second: private first which members of class first are private, protected, and public in class second?class first { public: void setX(); void print() const; protected: int y; void setY(int a); private: int x; }; Suppose that class second is derived from class first using the statement: class second: private first Determine which members of class first are private, protected, and public in class second.2. Consider the following class definitions: public class BClass } private int x; public void set(int a) } X a; { public void print() } System.out.print(x); { { public class DClass extends BClass } private int y; public void set(int a, int b) } //Postcondition: x =a; y=Db; { public void print( ) {.…} a. Write the definition of the print method of DClass that overrides it. b. Write the definition of the method set of the class DClass.
- The following class declaration has errors. Locate as many as you can. class Yard{private:double length;public:Yard(double l) { length = l; } // double conversion function void operator double() { return length; }... Other member functions follow ...};Analysis the following class definition and answer the following question. class Student{ private int id, age; protected float mark; int getAge (int a){ return a ; } protected void setMark (float m){ mark = m; } float result(){ return mark / 2; } } What is the access specifier of the result in the above code? a. No access specifier b. private c. float d. public e. voiduse the following partial class definitions:public class A1{public int x;private int y;public int z;…}public class A2 extends A1{public int a;private int b; …}public class A3 extends A2{private int q;…} 2) Which of the following lists of instance data are accessible in class A2?a) x, y, z, a, bb) x, y, z, ac) x, z, a, bd) z, a, be) a, b
- 1) Consider the following class Date, which represents a date using three ints for month, day and year: class Date { private: int month; int day; int year; public: Date() { month = day = year = 0; } Date(int m, int d, int y) { month = m; day = d; year = y; } bool operator==(Date); bool operator<(Date); }; It asks to create an implementation for both overloaded operators. == should return true if the Date objects are equivalent and false if not. < should return true if the Date of the calling object (left object) comes before the parameter Date object (right object) and false if not. Assume that all objects of class Date are valid, i.e. month is between 1 and 12, inclusive; day contains an appropriate day for the given month, and year can be anything. You don't need to demonstrate calling these operators.Question 15 1(8).png public class numClass { private int a; private static int y = 10; public numClass(int newx) {a-newx; } public void set(int newx) {a=newx; y+=a;} public void setY(int newY) {y-newY; } public static int getY() { return y; } // end of class Blank 1 Blank 1 Add your answer public class output[ public static void main(String[] args) { numclass one new numClass(10); numclass two new numClass (2); try{ one.sety(30); two.set(4); if(one.getY()-30) throw new Exception ("30"); one. sety (40); } catch(Exception e) { two.setY(50); } System.out.println(two.getY()); // end of main } // end of class ***Analysis the following class definition and answer the following question. class Student{ private int id, age; protected float mark; int getAge (int a){ return a ; } protected void setMark (float m){ mark = m; } float result(){ return mark / 2; } } Which is the member variable of the class? a. setMark b. getAge c. result d. private e. age
- use the following partial class definitions:public class A1{public int x;private int y;public int z;…}public class A2 extends A1{public int a;private int b; …}public class A3 extends A2{private int q;…} 1) Which of the following is true with respect to A1, A2 and A3?a) A1 is a subclass of A2 and A2 is a subclass of A3b) A3 is a subclass of A2 and A2 is a subclass of A1c) A1 and A2 are both subclasses of A3d) A2 and A3 are both subclasses of A1e) A1, A2 and A3 are all subclasses of the class A// Is my code correct? //please make it more efficient as you can. Thank you //please correct it if there is some mistakes public class PartTimeEmployee extends Person { //private variables private double payRate; private double hoursWorked; public PartTimeEmployee() { super(); /*invokes the default constructor of class Person */ payRate = 0; hoursWorked = 0; } public PartTimeEmployee(String idPerson, String nameFirst, String nameLast, String date, String addressPerson, double pay, double hours) { super(idPerson, nameFirst, nameLast, date, addressPerson); /*invokes the non-default constructor in other words, override the parameters from Person() non-defaukt with another set of parameters, example 'idPerson' variable overrides 'id' in Person() */ this.payRate = pay; this.hoursWorked = hours; } public String toString(String idPerson,…2. Consider the following class definitions: public class BClass private int x; public void set(int a) { x = a; } public void print() System.out.print(x); } public class DClass extends BClass { private int y; public void set(int a, int b) //Postcondition: x =a; y=b; } public void print( ) {..} a. Write the definition of the print method of DClass that overrides it. b. Write the definition of the method set of the class DClass. ||