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A: Find the required code in java as language not mentioned given as below and sample output :
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A: To do: Given Fillup
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A: Required Java code with Screenshot of sample output provided below :
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A: We can implement a class while extending the interface, java can handle this simultaneously.
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A: Answer to the above question is in step2.
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- class A{ void methodA(){} void methodB(); } class B extends A{ void methodA(){ } } class A should be abstract methodB should be abstract both a and b both classes are okayTrue or False, An abstract class must have at least one abstract method.class A {protected int x1,y1,z; public: A(a, b,c):x1(a+2),y1(b-1),z(c+2) { for(i=0; i<5;i++) x1++;y1++;z++;}}; class B {protected: int x,y; public: B(a,b):x(a+1),y(b+2) { for(i=0; i<5;i++) x+=2; y+=1;}}; class D:public B, virtual public A { private: int a,b; public: D(k,m,n): a(k+n), B(k,m),b(n+2),A(k,m,n) { a=a+1;b=b+1;}}; int main() (Dob(4,2,5);} what the values of x1,y1 and z
- To implement an interface, a concrete class must implement AT LEAST ONE of the method headers specified in the interface definition.QUESTION 16 What must be true of a class with one abstract method? O The class must also implement the Iterable interface Any derived class must implement the method The abstract method must have the static modifier O The method cannot specify a return value QUESTION 17 Suppose we wanted to design a set of classes for a veterinarian's office. Our Customer class looks like this: public class Customer { Pet [] pets; } Select all the statements that are true Once the size of the pets array has been set, it cannot be changed Because we're using an array, all pets must be the same A customer must have at least one pet We also need to declare a Pet class QUESTION 18 What is the proper use of an enumeration? To define a set of ordered values To enforce the use of the Comparable interface O To define, or enumerate, the values returned by a Random object generator O To define the classes in an inheritance hierarchyA subclass of an abstract class must implement all of the parent class's abstract methods. Is it true or false?
- PLZ help with the following IN JAVA When defining an inner class to be a helper class for an outer class, the inner classes access should be marked as: Public Private Protected Package accessGiven: interface B { int a; void methodA(); } O no problem the method needs to be public the variable a must be assigned a value O the method needs to have a bodyCode: interface Bicycle{ //interface for bicycle void changeGear(int val); //abstract methods void changeSpeed(int inc); void applyBrakes(int dec); void ringBell(int count); } class NewCycle implements Bicycle{ //class for a new cycle int speed=0; //stores the speed value int gear=0; //stores the gear value @Override public void changeGear(int val) { //method to change the gear gear=val; } @Override public void changeSpeed(int inc) { //method to change the speed speed=speed+inc; } @Override public void applyBrakes(int dec) { //method to apply brakes speed=speed-dec; } @Override public void ringBell(int count) { //method to ring the bell for(int i=0;i<count;i++){ System.out.print("Clang!!"+" "); } System.out.println(""); } public void printState(){ //method to print the states System.out.println("Ring bell, Speed, Gear,…
- 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.To implement an interface, a concrete class must implement AT LEAST ONE method headings listed in the definition of the interface.language: Java Class Inheritance with an abstract class Define a class Employee with the following fields: _name, _empId, _department, _position (_title), _yearlySalary, _fullTime (a boolean: true/false) , _month , _year (time of hire) Add constructor and properties Define an abstract method GetBiMonthlySalary() (if the employee is paid twice a month) Define an abstract method GetVacationTime() that returns the number of vacation time this employee would have based on time of hire Override the ToString() method to return a string that contains the information pertaining to an employee such as name, empId, department, and where full time or not. Define a class HourlyEmployee that inherits from Employee. This class should have 2 fields of its own: _hours (hours worked in half a month) and _wage (hourly wage) Provide necessary constructor, properties and methods Override the ToString() to also return the additional fields Gets 3 days of vacation after first year if the…
