Add author

src/main/java/seedu/budgetbuddy/command/ChangeCurrencyCommand.java

@@ -9,6 +9,9 @@
 
 import java.util.Currency;
 
+/**
+ * @@author sweijie24
+ */
 public class ChangeCurrencyCommand extends Command {
 
     private Currency newCurrency;

src/main/java/seedu/budgetbuddy/commandcreator/ChangeCurrencyCommandCreator.java

@@ -44,6 +44,7 @@ public ChangeCurrencyCommandCreator(String input, SavingList savings, ExpenseLis
      * @param expenseList       The ExpenseList containing expenses data.
      * @param currencyConverter The CurrencyConverter object for currency conversion.
      * @return A ChangeCurrencyCommand if the input is valid; otherwise, null.
+     * @author sweijie24
      */
     public Command handleChangeCurrencyCommand(String input, SavingList savingList, ExpenseList expenseList,
                                                SplitExpenseList splitExpenses,

src/main/java/seedu/budgetbuddy/commandcreator/ListCommandCreator.java

@@ -79,6 +79,7 @@ private boolean isValidSavingsCategory(String category) {
      * @param expenseList  The ExpenseList containing expenses data.
      * @param savingList   The SavingList containing savings data.
      * @return A ListCommand if the input is valid; otherwise, null.
+     * @author sweijie24
      */
     public Command handleListCommand(String input, ExpenseList expenseList, SavingList savingList) {
         assert input != null : "Input should not be null";

src/main/java/seedu/budgetbuddy/commons/CurrencyConverter.java

@@ -7,6 +7,7 @@
 import java.util.Map;
 import java.util.logging.Logger;
 
+//@author sweijie24
 public class CurrencyConverter {
 
     private static final Logger LOGGER = Logger.getLogger(Logger.GLOBAL_LOGGER_NAME);
@@ -36,6 +37,7 @@ public CurrencyConverter() {
      * @return The converted amount in the target currency.
      * @throws IllegalArgumentException If exchange rates are not available for one or both currencies,
      *                                  or if exchange rates are not positive numbers.
+     * @author sweijie24
      */
     public double convertAmount(double amount, Currency fromCurrency, Currency toCurrency) {
         if (!exchangeRates.containsKey(fromCurrency) || !exchangeRates.containsKey(toCurrency)) {
@@ -77,6 +79,7 @@ public double convertAmount(double amount, Currency fromCurrency, Currency toCur
      * @param newCurrency The new currency to convert expenses to.
      * @param expenses    The ExpenseList containing the expenses to be converted.
      * @throws IllegalArgumentException If the ExpenseList is null.
+     * @author sweijie24
      */
     public void convertExpenseCurrency(Currency newCurrency, ExpenseList expenses) {
         if (expenses == null) {
@@ -146,6 +149,7 @@ public void convertSplitExpenseCurrency(Currency newCurrency, SplitExpenseList s
      * @param newCurrency The new currency to convert savings to.
      * @param savings     The SavingList containing the savings to be converted.
      * @throws IllegalArgumentException If the SavingList is null.
+     * @author sweijie24
      */
     public void convertSavingCurrency(Currency newCurrency, SavingList savings) {
         if (savings == null) {

src/main/java/seedu/budgetbuddy/commons/DefaultCurrency.java

@@ -2,6 +2,7 @@
 
 import java.util.Currency;
 
+//@author sweijie24
 public class DefaultCurrency {
 
     private static Currency defaultCurrency = Currency.getInstance("SGD");

src/main/java/seedu/budgetbuddy/commons/Expense.java

@@ -2,6 +2,7 @@
 
 import java.time.LocalDate;
 
+//@author sweijie24
 public class Expense extends Transaction{
     protected String description;
     private LocalDate dateAdded;

src/main/java/seedu/budgetbuddy/commons/ExpenseList.java

@@ -90,6 +90,7 @@ public ArrayList<Expense> filterExpenses(String description, Double minAmount, D
      * If no filter category is specified, all expenses are listed.
      *
      * @param filterCategory the category by which to filter the expenses (optional)
+     * @author sweijie24
      */
     public void listExpenses(String filterCategory) {
         LOGGER.info("Listing expenses...");
@@ -132,6 +133,7 @@ public void listExpenses(String filterCategory) {
      *
      * @return The total expenses.
      * @throws IllegalArgumentException If any expense amount is negative.
+     * @author sweijie24
      */
     public double calculateTotalExpenses() {
         double totalExpenses = 0;

src/main/java/seedu/budgetbuddy/commons/Saving.java

@@ -1,4 +1,6 @@
 package seedu.budgetbuddy.commons;
+
+//@author sweijie24
 public class Saving extends Transaction{
 
     public Saving(String category, double amount) {

src/main/java/seedu/budgetbuddy/commons/SavingList.java

@@ -68,6 +68,7 @@ public void findTotalSavings() {
      *
      * @param filterCategory The category to filter savings by (optional). If null, all savings are listed.
      * @param expenseList    The ExpenseList object containing the expenses to deduct from savings.
+     * @author sweijie24
      */
     public void listSavings(String filterCategory, ExpenseList expenseList) {
         LOGGER.info("Listing savings...");
@@ -116,6 +117,7 @@ public void listSavings(String filterCategory, ExpenseList expenseList) {
      * @param initialAmount The initial amount of savings.
      * @param totalExpenses The total amount of expenses to be deducted.
      * @return The remaining savings amount after deducting total expenses.
+     * @author sweijie24
      */
     public double calculateRemainingSavings(double initialAmount, double totalExpenses) {
         try {

src/test/java/seedu/budgetbuddy/ChangeCurrencyCommandCreatorTest.java

@@ -14,6 +14,7 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNull;
 
+//@@author sweijie24
 public class ChangeCurrencyCommandCreatorTest {
 
 

src/test/java/seedu/budgetbuddy/CurrencyConverterTest.java

@@ -11,6 +11,7 @@
 import java.util.Currency;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
+//@@author sweijie24
 public class CurrencyConverterTest {
 
     @Test

src/test/java/seedu/budgetbuddy/ExpenseListTest.java

@@ -17,6 +17,8 @@
 
 import java.util.ArrayList;
 
+
+//@@author sweijie24
 public class ExpenseListTest {
 
     private static final Logger LOGGER = Logger.getLogger(ExpenseListTest.class.getName());

src/test/java/seedu/budgetbuddy/ListCommandCreatorTest.java

@@ -12,6 +12,7 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNull;
 
+//@@author sweijie24
 public class ListCommandCreatorTest {
 
     @Test

src/test/java/seedu/budgetbuddy/SavingListTest.java

@@ -12,6 +12,8 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
+
+//@@author sweijie24
 public class SavingListTest {
 
     private static final Logger LOGGER = Logger.getLogger(SavingListTest.class.getName());