Question

Design an application that declares an array of 20 AutomobileLoan objects. Prompt the user for data for each object, and then pass the array to a method that determines the sum of the balances.

Answer 1

import java.util.Scanner;

public class AutomobileLoan{

   private String username;
   private double loanAmount, repaid;
   private String carModel, color;
   private int yearMake;

   public AutomobileLoan(){

   }
  
   public AutomobileLoan(String username, double loanAmount, double repaid, String carModel, String color, int yearMake) {
       this.username = username;
       this.loanAmount = loanAmount;
       this.carModel = carModel;
       this.color = color;
       this.yearMake = yearMake;
       this.repaid = repaid;
   }

   public String getUsername() {
       return username;
   }

   public void setUsername(String username) {
       this.username = username;
   }

   public double getLoanAmount() {
       return loanAmount;
   }

   public void setLoanAmount(double loanAmount) {
       this.loanAmount = loanAmount;
   }

   public String getCarModel() {
       return carModel;
   }

   public void setCarModel(String carModel) {
       this.carModel = carModel;
   }

   public String getColor() {
       return color;
   }

   public void setColor(String color) {
       this.color = color;
   }

   public int getYearMake() {
       return yearMake;
   }

   public void setYearMake(int yearMake) {
       this.yearMake = yearMake;
   }
  
   public double getRepaid() {
       return this.repaid;
   }
  
   public static void totalLoan(AutomobileLoan[] cars, int count) {
       double amount = 0.0;
       for(int i = 0 ; i < count ; i++)
       {
           amount += (cars[i].getLoanAmount() - cars[i].getRepaid());
       }
       System.out.println("Total loan amount is: " + amount);
   }
  
   public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       AutomobileLoan[] loan = new AutomobileLoan[20];
      
       int count;
       String name, color, model;
       int year;
       double loanAmount, repaid;
      
       System.out.print("Enter the number of loan information you want to insert: ");
       count = scanner.nextInt();
      
       for(int i = 0 ; i < count ; i++)
       {
           System.out.println("Applicant " + (i+1));
          
           System.out.print("Enter applicant's name: ");
           name = scanner.next();
          
           System.out.print("Enter car model: ");
           model = scanner.next();
          
           System.out.print("Enter car color: ");
           color = scanner.next();
          
           System.out.print("Enter year make: ");
           year = scanner.nextInt();
          
           System.out.print("Enter loan amount: ");
           loanAmount = scanner.nextDouble();
          
           System.out.print("Enter amount repaid against loan: ");
           repaid = scanner.nextDouble();
          
           loan[i] = new AutomobileLoan(name, loanAmount, repaid, model, color, year);
          
           System.out.println("---------------------------");
       }
      
       AutomobileLoan.totalLoan(loan, count);
      
       scanner.close();
   }
}

Output:

<terminated> AutomobileLoan [Java Application] C\Program FilesJava\jdk-12.0.1\bin\javaw.exe (Aug 14, 2019, 10:46:20 PM) Enter the number of loan information you want to insert: 3 Applicant 1 Enter applicant's name: john Enter car model: mustang Enter car color: black Enter year make: 2013 Enter loan amount: 25000 Enter amount repaid against loan: 5000 Applicant 2 Enter applicant's name: smith Enter car model: ferari Enter car color: red Enter year make: 2015 Enter loan amount: 65250 Enter amount repaid against loan: 25006 Applicant 3 Enter applicant's name: willie Enter car model: aston Enter car color: gray Enter year make: 2010 Enter loan amount: 36800 Enter amount repaid against loan: 30000 Total loan amount is: 67044.0