All categories

3 years ago

4. When the keyword ____________________ is followed by a parenthesis, it indicates a call to the superclass constructor.

Computers and Technology

1 answer:

Andreyy893 years ago

5 0

Answer:

Super

Explanation:

In object-oriented programming (OOP) language, an object class represents the superclass of every other classes when using a programming language such as Java. The superclass is more or less like a general class in an inheritance hierarchy. Thus, a subclass can inherit the variables or methods of the superclass.

Basically, all instance variables that have been used or declared in any superclass would be present in its subclass object.

Hence, when the keyword super is followed by a parenthesis, it indicates a call to the superclass constructor and it should be the first statement declared in the subclass constructor.

You might be interested in

For the block of 400 addresses, what is the length of the net id? njit

rewona [7]

23 bits would leave room for 512 node numbers.

3 0

3 years ago

Write a program FindDuplicate.java that reads n integer arguments from the command line into an integer array of length n, where

kozerog [31]

Answer:

public class FindDuplicate{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int n = 5;
int arr[] = new int[n];
for(int i=0; i < arr.length; i++){
int inputNum = input.nextInt();
if(inputNum >=1 && inputNum <=n) {
arr[i] = inputNum;
}
}
for(int j =0; j < arr.length; j++){
for(int k = 0; k < arr.length; k++){
if(j == k){
continue;
}else{
if(arr[j] == arr[k]){
System.out.println("True");
return;
}
}
}
}
System.out.println("False");
}
}

Explanation:

Firstly, create a Scanner object to get user input (Line 4).

Next, create an array with n-size (Line 7) and then create a for-loop to get user repeatedly enter an integer and assign the input value to the array (Line 9 - 14).

Next, create a double layer for-loop to check the each element in the array against the other elements to see if there is any duplication detected and display "True" (Line 21 - 22). If duplication is found the program will display True and terminate the whole program using return (Line 23). The condition set in Line 18 is to ensure the comparison is not between the same element.

If all the elements in the array are unique the if block (Line 21 - 23) won't run and it will proceed to Line 28 to display message "False".

7 0

3 years ago

For the past five days, the Howard family has traveled these miles: 389;126;419;93; and 394. Find the range and how. Show all yo

Fofino [41]

The answer is 326.

Range is found by subtracting the smallest number in the data set from the largest number.

Highest number: 419
Lowest number: 93

419-93
=326

(Next time make sure to post this under the Mathematics section.)

5 0

3 years ago

Write a script that prints the multiples of 7 between 0 and 100. Print one multiple per line and avoid printing any numbers that

Sedbober [7]

Answer:

The program to this question can be described as follows:

Program:

#include <iostream> //defining header file

using namespace std;

int main() //defining main method

{

int x; //defining integer variable

for(x=0;x<=100;x++) //defining loop to count value from 0 to 100

{

if(x%7==0) //check value is divisable by 7

{

cout<<x<<endl; //print value

}

return 0;

}

Output:

please find the attachment.

Explanation:

In the above code, an integer variable x is declared, which is used in the for loop, in this loop variable "x" starts from 0 and ends when the value of x is less than and equal to 100.

Inside the loop an, if block is used that defines a condition that is (i%7==0), it will check, that the value is divided by 7.
In this loop, a print method is used, that prints its values.

8 0

3 years ago

Your solution should for this assignment should consist of five (5)files:==============================================　FuelGaug

olga nikolaevna [1]

Answer: provided in the explanation section

Explanation:

This was implemented in C++

Filename: Car.cpp

#include <iostream>

#include <iomanip>

#include <cstdlib>

#include "Odometer.h"

using namespace std;

int main()

{

char response;

{

FuelGuage* myFuel = new FuelGuage(6);

int fuelLevel = myFuel->getFuel();

cout << "Car gas level: " << fuelLevel << endl;

cout << "Car is filling up" << endl;

while(myFuel->getFuel() < 15)

{

myFuel->addFuel();

}

Odometer* car = new Odometer(myFuel, 999990);

cout << "Car gas level: " << car->getFuelGuage()->getFuel() << endl;

cout << "Car is off!" << endl;

cout << "--------------------------" << endl;

while(car->getFuelGuage()->getFuel() > 0)

{

car->addMile();

int miles = car->getMileage();

cout << "Mileage: " << setw(6) << miles << ", Fuel Level: " << car->getFuelGuage()->getFuel() << endl;

cout<<"--------------------------------------------------------------"<<endl;

}

delete myFuel;

delete car;

cout << "Would you like to run the car again(Y/N)? ";

cin >> response;

system("cls||clear");

} while(toupper(response) != 'N');

return 0;

}

Filename: FuelGuage.cpp

#include "FuelGuage.h"

FuelGuage::FuelGuage()

{

init();

}

FuelGuage::FuelGuage(int fuel)

{

init();

this->fuel = fuel;

}

FuelGuage::FuelGuage(const FuelGuage& copy)

{

this->fuel = copy.fuel;

}

void FuelGuage::init()

{

this->fuel = 0;

}

int FuelGuage::getFuel()

{

return fuel;

}

void FuelGuage::addFuel()

{

fuel++;

}

void FuelGuage::burnFuel()

{

fuel--;

}

Filename:FuelGuage.h

#ifndef FUEL_GUAGE_H

#define FUEL_GUAGE_H

class FuelGuage

{

private:

int fuel;

void init();

public:

FuelGuage();

FuelGuage(int fuel);

FuelGuage(const FuelGuage& copy);

int getFuel();

void addFuel();

void burnFuel();

};

#endif

Filename : Odometer.cpp

#include "Odometer.h"

Odometer::Odometer()

{

init();

}

Odometer::Odometer(FuelGuage* inFuel, int inMileage)

{

init();

this->fuel = new FuelGuage(*inFuel);

this->mileage = inMileage;

this->milesSinceAddingFuel = 0;

}

void Odometer::init()

{

fuel = new FuelGuage();

mileage = 0;

milesSinceAddingFuel = 0;

}

FuelGuage* Odometer::getFuelGuage()

{

return fuel;

}

int Odometer::getMileage()

{

return mileage;

}

void Odometer::addMile()

{

if(mileage < 999999)

{

mileage++;

milesSinceAddingFuel++;

}

else

{

mileage = 0;

milesSinceAddingFuel++;

}

if((milesSinceAddingFuel % 24) == 0)

{

fuel->burnFuel();

}

void Odometer::resetMiles()

{

milesSinceAddingFuel = 0;

}

Odometer::~Odometer()

{

delete fuel;

}

Filename: Odometer.h

#ifndef ODOMETER_H

#define ODOMETER_H

#include "FuelGuage.h"

class Odometer

{

private:

void init();

int mileage;

int milesSinceAddingFuel;

FuelGuage* fuel;

public:

Odometer();

Odometer(FuelGuage* inFuel, int inMileage);

FuelGuage* getFuelGuage();

int getMileage();

void addMile();

void resetMiles();

~Odometer();

};

#endif

6 0

3 years ago