Edit command text returns and date format

src/main/java/seedu/address/logic/Messages.java

@@ -1,5 +1,6 @@
 package seedu.address.logic;
 
+import java.time.format.DateTimeFormatter;
 import java.util.Set;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -55,16 +56,26 @@ public static String format(Person person) {
      * Formats the {@code article} for display to the user.
      */
     public static String format(Article article) {
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
         final StringBuilder builder = new StringBuilder();
-        builder.append("; Title: ")
-                .append(article.getTitle())
-                .append("; Authors: ")
-                .append(article.getAuthors())
-                .append("; Publication Date: ")
-                .append(article.getPublicationDate())
-                .append("; Source: ")
-                .append(article.getSources())
-                .append("; Category: ")
+        builder.append(article.getTitle())
+                .append("; Authors: ");
+        for (int i = 0; i < article.getAuthors().length; i++) {
+            builder.append(article.getAuthors()[i]);
+            if (i < article.getAuthors().length - 1) {
+                builder.append(", ");
+            }
+        }
+        builder.append("; Publication Date: ")
+                .append(article.getPublicationDateAsString())
+                .append("; Source: ");
+        for (int i = 0; i < article.getSources().length; i++) {
+            builder.append(article.getSources()[i]);
+            if (i < article.getSources().length - 1) {
+                builder.append(", ");
+            }
+        }
+        builder.append("; Category: ")
                 .append(article.getCategory())
                 .append("; Status: ")
                 .append(article.getStatus());

src/main/java/seedu/address/logic/commands/PersonCommand.java

@@ -4,7 +4,7 @@
  * Represents a command with functionality pertaining to persons.
  */
 public abstract class PersonCommand extends Command {
-
+    @Override
     public String getCommandType() {
         return "personCommand";
     };

src/main/java/seedu/address/logic/commands/articlecommands/AddArticleCommand.java

@@ -19,7 +19,8 @@ public class AddArticleCommand extends ArticleCommand {
     public static final String COMMAND_PREFIX = "-a";
 
     // To be edited for use in test cases later on.
-    public static final String MESSAGE_USAGE = COMMAND_WORD + ": Adds an article to the article book. ";
+    public static final String MESSAGE_USAGE = COMMAND_WORD + " " + COMMAND_PREFIX
+            + ": Adds an article to the article book. ";
 
     public static final String MESSAGE_SUCCESS = "New article added: %1$s";
     public static final String MESSAGE_DUPLICATE_ARTICLE = "This article already exists in the article book";

src/main/java/seedu/address/logic/commands/articlecommands/ArticleCommand.java

@@ -7,6 +7,7 @@
  */
 public abstract class ArticleCommand extends Command {
 
+    @Override
     public String getCommandType() {
         return "articleCommand";
     };

src/main/java/seedu/address/logic/commands/articlecommands/DeleteArticleCommand.java

@@ -22,7 +22,7 @@ public class DeleteArticleCommand extends ArticleCommand {
     public static final String COMMAND_PREFIX = "-a";
 
     // To be edited for use in test cases later on.
-    public static final String MESSAGE_USAGE = COMMAND_WORD
+    public static final String MESSAGE_USAGE = COMMAND_WORD + " " + COMMAND_PREFIX
             + ": Deletes the article identified by the index number used in the displayed article list.\n"
             + "Parameters: INDEX (must be a positive integer)\n"
             + "Example: " + COMMAND_WORD + " " + COMMAND_PREFIX + " 1";

src/main/java/seedu/address/logic/commands/articlecommands/EditArticleCommand.java

@@ -29,7 +29,8 @@ public class EditArticleCommand extends ArticleCommand {
     public static final String COMMAND_PREFIX = "-a";
 
     // To be edited for use in test cases later on.
-    public static final String MESSAGE_USAGE = COMMAND_WORD + ": Edits the details of the article identified "
+    public static final String MESSAGE_USAGE = COMMAND_WORD + " " + COMMAND_PREFIX
+            + ": Edits the details of the article identified "
             + "by the index number used in the displayed article list. "
             + "Existing values will be overwritten by the input values.\n"
             + "Parameters: INDEX (must be a positive integer) "

src/main/java/seedu/address/logic/commands/articlecommands/FindArticleCommand.java

@@ -18,10 +18,11 @@ public class FindArticleCommand extends ArticleCommand {
 
     public static final String COMMAND_PREFIX = "-a";
 
-    public static final String MESSAGE_USAGE = COMMAND_WORD + ": Finds all articles whose titles contain any of "
-            + "the specified keywords (case-insensitive) and displays them as a list with index numbers.\n"
-            + "Parameters: KEYWORD [MORE_KEYWORDS]...\n"
-            + "Example: " + COMMAND_WORD + " " + COMMAND_PREFIX + " HDB UDP TCP";
+    public static final String MESSAGE_USAGE = COMMAND_WORD + " " + COMMAND_PREFIX
+        + ": Finds all articles whose titles contain any of "
+        + "the specified keywords (case-insensitive) and displays them as a list with index numbers.\n"
+        + "Parameters: KEYWORD [MORE_KEYWORDS]...\n"
+        + "Example: " + COMMAND_WORD + " " + COMMAND_PREFIX + " HDB UDP TCP";
 
     private final TitleContainsKeywordsPredicate predicate;
 

src/main/java/seedu/address/logic/commands/articlecommands/ListArticleCommand.java

@@ -17,7 +17,6 @@ public class ListArticleCommand extends ArticleCommand {
 
     public static final String MESSAGE_SUCCESS = "Listed all articles";
 
-
     @Override
     public CommandResult execute(Model model) {
         requireNonNull(model);

src/main/java/seedu/address/logic/parser/AddArticleCommandParser.java

@@ -30,7 +30,7 @@ public AddArticleCommand parse(String args) throws ParseException {
                 ArgumentTokenizer.tokenize(args, PREFIX_TITLE, PREFIX_AUTHOR, PREFIX_PUBLICATION_DATE, PREFIX_SOURCE,
                         PREFIX_CATEGORY, PREFIX_STATUS);
 
-        if (!arePrefixesPresent(argMultimap, PREFIX_TITLE, PREFIX_AUTHOR, PREFIX_PUBLICATION_DATE, PREFIX_SOURCE,
+        if (!arePrefixesPresent(argMultimap, PREFIX_TITLE, PREFIX_AUTHOR, PREFIX_PUBLICATION_DATE,
                 PREFIX_CATEGORY, PREFIX_STATUS) || !argMultimap.getPreamble().isEmpty()) {
             throw new ParseException(String.format(MESSAGE_INVALID_COMMAND_FORMAT, AddArticleCommand.MESSAGE_USAGE));
         }

src/main/java/seedu/address/logic/parser/ParserUtil.java

@@ -5,8 +5,11 @@
 import static seedu.address.model.article.Article.Status.DRAFT;
 import static seedu.address.model.article.Article.Status.PUBLISHED;
 
+import java.text.SimpleDateFormat;
 import java.time.LocalDateTime;
+import java.time.ZoneId;
 import java.util.Collection;
+import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -165,10 +168,18 @@ public static String[] parseAuthors(List<String> authors) throws ParseException
      */
     public static LocalDateTime parsePublicationDate(String publicationDate) throws ParseException {
         requireNonNull(publicationDate);
-        String trimmedPublicationDate = publicationDate.trim();
-        LocalDateTime parsedDate = LocalDateTime.parse(trimmedPublicationDate);
-        //removed the check for publication date validity
-        return parsedDate;
+        try {
+            SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm");
+            String trimmedPublicationDate = publicationDate.trim();
+            Date tempDate = dateFormat.parse(trimmedPublicationDate);
+            LocalDateTime parsedDate = tempDate.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime();
+            parsedDate.withSecond(0);
+            //removed the check for publication date validity
+            return parsedDate;
+        } catch (java.text.ParseException e) {
+            throw new ParseException("Invalid publication date");
+        }
+
     }
 
     /**

src/main/java/seedu/address/model/article/Article.java

@@ -1,6 +1,7 @@
 package seedu.address.model.article;
 
 import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 
 /**
  * Represents an article in the address book.
@@ -53,6 +54,11 @@ public LocalDateTime getPublicationDate() {
         return this.publicationDate;
     }
 
+    public String getPublicationDateAsString() {
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
+        return this.publicationDate.format(formatter);
+    }
+
     public String[] getSources() {
         return this.sources;
     }

src/main/java/seedu/address/ui/ArticleCard.java

@@ -58,7 +58,7 @@ public ArticleCard(Article article, int displayedIndex) {
         Arrays.stream(article.getSources())
                 .sorted()
                 .forEach(source -> sources.getChildren().add(new Label(source)));
-        publicationDate.setText(article.getPublicationDate().toString());
+        publicationDate.setText(article.getPublicationDateAsString());
         category.setText(article.getCategory());
         status.setText(article.getStatus().toString());
     }