TenderEvaluationSystem.java

import java.util.Scanner;

// 1. The Tender Class
class Tender {
    private double quotation;
    private String companyName;

    // Parameterized constructor
    public Tender(double quotation, String companyName) {
        this.quotation = quotation;
        this.companyName = companyName;
    }

    // Getters to maintain Encapsulation
    public double getQuotation() {
        return quotation;
    }

    public String getCompanyName() {
        return companyName;
    }
}

// 2. The Main Driver Class (PascalCase)
public class TenderEvaluationSystem {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        // Array of objects to store exactly 5 Tender instances
        Tender[] tenders = new Tender[5];
        
        System.out.println("--- Tender Application System ---");
        
        // Loop 1: Accepting data for 5 objects
        for (int i = 0; i < tenders.length; i++) {
            System.out.println("\nEntering details for Company " + (i + 1) + ":");
            
            System.out.print("Enter Company Name: ");
            String name = scanner.nextLine();
            
            System.out.print("Enter Quotation Amount: ");
            double amount = getValidDouble(scanner);
            scanner.nextLine(); // Consume the leftover newline character
            
            // Initialize the object directly into the array
            tenders[i] = new Tender(amount, name);
        }
        
        // Loop 2: Finding the company with the minimum quotation
        int minIndex = 0;
        for (int i = 1; i < tenders.length; i++) {
            // Compare the current quotation with the lowest one found so far
            if (tenders[i].getQuotation() < tenders[minIndex].getQuotation()) {
                minIndex = i;
            }
        }
        
        // Displaying the final result
        System.out.println("\n=========================================");
        System.out.println("          TENDER ALLOCATION RESULT       ");
        System.out.println("=========================================");
        System.out.println("Winning Company: " + tenders[minIndex].getCompanyName());
        System.out.println("Minimum Quotation: " + tenders[minIndex].getQuotation());
        System.out.println("=========================================");
        
        scanner.close();
    }
    
    // Helper method to prevent the Scanner from crashing if a user types letters instead of numbers
    private static double getValidDouble(Scanner scanner) {
        while (!scanner.hasNextDouble()) {
            System.out.print("Invalid input. Please enter a valid numerical amount: ");
            scanner.next(); // Consume the invalid input
        }
        return scanner.nextDouble();
    }
}