Question

Create a class named “Car” which has the following fields. The fields correspond to the columns in the text file except the last one. i. Vehicle_Name : String ii. Engine_Number : String iii. Vehicle_Price : double iv. Profit : double v. Total_Price : double (Total_Price = Vehicle_Price + Vehicle_Price* Profit/100) 2. Write a Java program to read the content of the text file. Each row has the attributes of one Car Object (except Total_Price). 3. After reading the instances of a Car, “Total_Price” will be calculate, and then the object must be saved in an array of objects. 4. Write each object created to a seperate file, for example: "Honda.txt", “KIA.text” and “BMW.text” for the following sample input file. 5. Write a method named showCar(double eNumber),takes the Engine Number as parameter, and displays all the information of the particular car including Total Price. Sample Input File: Honda 33244231 80 5 KIA 5544546 60 4 BMW 9846343 110 3.5

Answer 1

import java.io.*;

class Car
{
        String Vehicle_Name;
        String Engine_Number;
        double Vehicle_Price;
        double Profit;
        double Total_Price;
        Car(String Vehicle_Name, String Engine_Number, double Vehicle_Price, double profit)
        {
                this.Vehicle_Name = Vehicle_Name;
                this.Engine_Number = Engine_Number;
                this.Vehicle_Price = Vehicle_Price;
                this.Profit = Profit;
                this.Total_Price = Vehicle_Price + Vehicle_Price* Profit/100;
        }
}
class TestCar
{
        public static void main(String args[]) throws Exception
        {
                File file = new File("/home/keerthi/Desktop/sample.txt"); 
                BufferedReader br = new BufferedReader(new FileReader(file)); 
                String st; 
                int i = 0;
                Car cars[] = new Car[10];
                File file1 = new File("/home/keerthi/Desktop/Honda.txt"); 
                File file2 = new File("/home/keerthi/Desktop/KIA.txt"); 
                File file3 = new File("/home/keerthi/Desktop/BMW.txt"); 
                while ((st = br.readLine()) != null)
                {
                    
                    String[] arrOfStr = st.split(" ", 4);
                    double price = Double.valueOf(arrOfStr[2]);
                    double profit = Double.valueOf(arrOfStr[3]);
                    cars[i] = new Car(arrOfStr[0],arrOfStr[1],price,profit);
                    i++;
                    if(arrOfStr[0] == "Honda")
                    {
                        FileWriter fw = new FileWriter(file1);
                        fw.write(st);
                    }
                     else if(arrOfStr[0] == "KIA")
                    {
                        FileWriter fw=new FileWriter(file2);
                        fw.write(st);
                    }
                    else if(arrOfStr[0] == "BMW")
                    {
                        FileWriter fw=new FileWriter(file3);
                        fw.write(st);
                    }
                }
                carShow(5544546,cars);
                
        }
        public static void carShow(double Enumber,Car cars[])
        {
                for(int i = 0;i < cars.length;i++)
                {
                        if(Enumber == Double.valueOf(cars[i].Engine_Number))
                        {
                                System.out.println(cars[i].Vehicle_Name);
                                System.out.println(cars[i].Engine_Number);
                                System.out.println(cars[i].Vehicle_Price);
                                System.out.println(cars[i].Profit);
                                System.out.println(cars[i].Total_Price);
                        }
                }
        }
                                
        
}

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