Java Program to create super class Vehicle and derived classes LightMotorVehicle and HeavyMotorVehicle - IProgramX

Q. Write a Java program to create a super class Vehicle having members Company and price. Derive 2 different classes LightMotorVehicle (members – mileage) and HeavyMotorVehicle (members – capacity-in-tons). Accept the information for n vehicles and display the information in appropriate form. While taking data, ask the user about the type of vehicle first.

Program:

import java.io.*;
class Vehicle{
String company;
double price;
public void accept() throws IOException{
System.out.println("Enter the Company and price of the Vehicle: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
company=br.readLine();
price=Double.parseDouble(br.readLine());

}
public void display(){
System.out.println("Company: "+company+" Price: "+price);
}

}
class LightMotorVehicle extends Vehicle{
double mileage;
public void accept() throws IOException{
super.accept();
System.out.println("Enter the mileage of the vehicle: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
mileage=Double.parseDouble(br.readLine());
}
public void display(){
super.display();
System.out.println("Mileage: "+mileage);
}
}
class HeavyMotorVehicle extends Vehicle{
double captons;
public void accept() throws IOException{
super.accept();
System.out.println("Enter the capacity of vehicle in tons: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
captons=Double.parseDouble(br.readLine());
}
public void display(){
super.display();
System.out.println("Capacity in tons: "+captons);
}
}

public class sa3 {
public static void main(String [] args) throws IOException{
int i;
System.out.println("Enter the type of vehicle: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("1.Light Vehicle");
System.out.println("2.Heavy Vehicle");
int ch=Integer.parseInt(br.readLine());
switch(ch){
case 1: 
System.out.println("Enter the number of Light vehicles: ");
int n=Integer.parseInt(br.readLine());
LightMotorVehicle [] l=new LightMotorVehicle[n];
for(i=0;i<n;i++){
l[i]=new LightMotorVehicle();
l[i].accept();
}
for(i=0;i<n;i++){
l[i].display();
}
break;
case 2:
System.out.println("Enter the number of Heavy vehicles: ");
int m=Integer.parseInt(br.readLine());
HeavyMotorVehicle [] h=new HeavyMotorVehicle[m];
for(i=0;i<m;i++){
h[i]=new HeavyMotorVehicle();
h[i].accept();
}
for(i=0;i<m;i++){
h[i].display();
}
break;
}
} 

}

Output:

Enter the type of vehicle: 

1.Light Vehicle

2.Heavy Vehicle

1

Enter the number of Light vehicles: 

2

Enter the Company and price of the Vehicle: 

yamaha

12000

Enter the mileage of the vehicle: 

12

Enter the Company and price of the Vehicle: 

suziki

14000

Enter the mileage of the vehicle: 

13

Company: yamaha Price: 12000.0

Mileage: 12.0

Company: suziki Price: 14000.0

Mileage: 13.0