Level-8 deadline done, event left to do

src/main/java/Deadline.java

@@ -1,18 +1,79 @@
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.util.ArrayList;
+import java.util.List;
+
 public class Deadline extends Task {
 
     protected String by;
 
+    protected LocalDate deadlineDate;
+
+    protected LocalDateTime deadLineDateAndTime;
+
     public Deadline(String description, String by) {
         super(description);
+        this.deadlineDate = parseDate(by);
+        this.deadLineDateAndTime = parseDateTime(by);
         this.by = by;
     }
 
     @Override
     public String toString() {
-        return "[D]" + super.toString() + "(by: " + by + ")";
+        if (deadlineDate != null) {
+            String outputDate = deadlineDate.format(DateTimeFormatter.ofPattern("MMM dd yyyy"));
+            return "[D]" + super.toString() + "(by: " + outputDate + ")";
+        } else if (deadLineDateAndTime != null) {
+            String outputDate = deadLineDateAndTime.format(DateTimeFormatter.ofPattern("MMM dd yyyy HH:mm"));
+            return "[D]" + super.toString() + "(by: " + outputDate + ")";
+        } else {
+            return "[D]" + super.toString() + "(by: " + by + ")";
+        }
     }
     @Override
     public String writeToFile() {
-        return "D | " + (getIsDone() ? "1" : "0") + " | " + getDescription() + " | " + by;
+        String printedStuff = "D | " + (getIsDone() ? "1" : "0") + " | " + getDescription() + " | ";
+        if (deadlineDate != null) {
+            return printedStuff + this.deadlineDate;
+        } else if (deadLineDateAndTime != null) {
+            return printedStuff + this.deadLineDateAndTime;
+        } else {
+            return printedStuff + this.by;
+        }
+    }
+
+    protected LocalDate parseDate(String date) {
+        List<DateTimeFormatter> formats = new ArrayList<>();
+        formats.add(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
+        formats.add(DateTimeFormatter.ofPattern("dd/MM/yyyy"));
+        formats.add(DateTimeFormatter.ofPattern("d/M/yyyy"));
+
+        for (int i = 0; i < formats.size(); i++) {
+            try {
+                return LocalDate.parse(date, formats.get(i));
+            } catch (DateTimeParseException e) {
+
+            }
+        }
+        return null;
+    }
+
+    protected LocalDateTime parseDateTime(String date) {
+        List<DateTimeFormatter> formats = new ArrayList<>();
+        formats.add(DateTimeFormatter.ofPattern("yyyy-MM-dd HHmm"));
+        formats.add(DateTimeFormatter.ofPattern("dd/MM/yyyy HHmm"));
+        formats.add(DateTimeFormatter.ofPattern("d/MM/yyyy HHmm"));
+
+            for (int i = 0; i < formats.size(); i++) {
+                try {
+                    return LocalDateTime.parse(date, formats.get(i));
+                } catch (DateTimeParseException e) {
+
+            }
+        }
+
+        return null;
     }
 }

src/main/java/Event.java

@@ -1,8 +1,17 @@
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
 public class Event extends Task {
 
     protected String from;
     protected String to;
 
+    protected LocalDate fromDate;
+    protected LocalDate toDate;
+
+    protected LocalDateTime fromDateTime;
+    protected LocalDateTime toDateTime;
+
     public Event(String description, String from, String to) {
         super(description);
         this.from = from;

src/main/java/Jelly.java

@@ -6,6 +6,10 @@
 import exceptions.JellyUnknownCommandException;
 import java.io.File;
 import java.io.FileWriter;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
 
 public class Jelly {
     private static final String FILE_PATH = "./taskData/jelly.txt";

taskData/jelly.txt

@@ -1,4 +1 @@
-T | 0 | this 
-D | 1 | that  | 2pm mondayee
-E | 0 | party  | 2pm sunday to 3pm monday
-T | 1 | thing that 
+D | 0 | do this  | 2020-02-12T18:00