Your programming task is to write a program which creates two new classes, “Car”
ID: 3596322 • Letter: Y
Question
Your programming task is to write a program which creates two new classes, “Car” and “CarGame”
The Car class will keep track of three things about the car:
Model (e.g. “Corvette”)
Year (e.g. “2016”)
Speed (as an integer)
The Car class should have a constructor that takes in two parameters, one for model and one for year. The initial speed should be set to 0.
The Car class will have the following accessor and mutator methods
setModel
setYear
setSpeed
getModel
getYear
getSpeed
It will also have two methods: accelerate and decelerate. The accelerate method will increase the speed by 5 and the decelerate method will decrease it by 5.
The CarGame class will contain the main method should prompt the user to enter a Model and Year for the car. After the car is created it will prompt the user to determine whether the user wants to accelerate or decelerate (prompt should read: “Enter 1 to accelerate, 2 to decelerate and 0 to end the game:”).
Keep looping until the user enters “0”, “1” or “2”. Based on the input do the following:
0 – end the program
1 – call the car’s accelerate method and display the new speed.
2 – call the car’s decelerate method and display the new speed
Explanation / Answer
Please find my implementation.
public class Car {
private int year;
private String model;
private double speed;
//constructor
public Car(int year, String model) {
super();
this.year = year;
this.model = model;
}
public int getYear() {
return year;
}
public String getModel() {
return model;
}
public double getSpeed() {
return speed;
}
public void setYear(int year) {
this.year = year;
}
public void setModel(String model) {
this.model = model;
}
public void setSpeed(double speed) {
this.speed = speed;
}
//accelerator
public void accelerate(){
speed+=5;
}
//break
public void decelerate(){
speed-=5;
}
}
#############
import java.util.Scanner;
public class CarGame {
public static void main(String[] args) {
Car c = new Car(2016, "Corvette");
Scanner sc = new Scanner(System.in);
while(true) {
System.out.print("Enter 1 to accelerate, 2 to decelerate and 0 to end the game: ");
int op = sc.nextInt();
if(op == 0)
break;
else if(op == 1) {
c.accelerate();
}
else if(op == 2) {
c.decelerate();
}
System.out.println(c.getModel()+", "+c.getYear()+", "+c.getSpeed());
}
sc.close();
}
}
/*
Sample run:
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 1
Corvette, 2016, 5.0
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 1
Corvette, 2016, 10.0
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 1
Corvette, 2016, 15.0
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 1
Corvette, 2016, 20.0
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 2
Corvette, 2016, 15.0
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 2
Corvette, 2016, 10.0
Enter 1 to accelerate, 2 to decelerate and 0 to end the game: 0
*/
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