Computer Science · May / June 2025 · Paper 2 TZ2 HL · Question 17

17. The Supplier class gives the details of suppliers. The following shows part of the code for this class: import java.util.LinkedList; public class Supplier { private String supplierName; private String supplierCountry; private String[] productNames = new String[10]; public Supplier(String supplierName, String supplierCountry, String[] productNames) { this.supplierName = supplierName; this.supplierCountry = supplierCountry; this.productNames = productNames; } public String getSupplierName(){ return supplierName; } public String getSupplierCountry(){ return supplierCountry; } // all accessor and mutator methods are present but not shown public String displayData() { System.out.println("Supplier: " + supplierName + ", Country: " + supplierCountry); } } // end of Supplier class The SupplierManager class has methods to generate the information required. The following shows part of the code for this class: public class SupplierManager { LinkedList<Supplier> supplierList; public SupplierManager() { supplierList = new LinkedList<>(); } public void addSupplier(Supplier newSupplier) { // code missing } public void displayList() { // code missing } public static int countOfSuppliers(LinkedList<Supplier> supplierList, String country, int n) { // code missing } } // end of SupplierManager class (Option D continues on the following page) (Option D, question 17 continued)

Read automatically from the paper; the printed page above is exact.