Zhou Yang ip

src/main/java/Duke_Level0.java

@@ -0,0 +1,7 @@
+public class Duke_Level0 {
+    public static void main(String[] args) {
+        System.out.println("Hello, I'm SamuelBot");
+        System.out.println("What can I do for you?");
+        System.out.println("Bye. Hope to see you again soon!");
+    }
+}

src/main/java/Duke_Level1.java

@@ -0,0 +1,14 @@
+import java.util.Scanner;
+public class Duke_Level1 {
+    public static void main(String[] args) {
+        System.out.println("Hello! I'm SamuelBot");
+        System.out.println("What can I do for you?");
+        Scanner s = new Scanner(System.in);
+        String str = s.nextLine();
+        while(! str.equals("bye")) {
+            System.out.println(str);
+            str = s.nextLine();
+        }
+        System.out.println("Bye. Hope to see you again soon!");
+    }
+}

src/main/java/Duke_Level2.java

@@ -0,0 +1,26 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class Duke_Level2 {
+    public static void main(String[] args) {
+        List<String> list = new ArrayList<>();
+        System.out.println("Hello! I'm SamuelBot");
+        System.out.println("What can I do for you?");
+        Scanner s = new Scanner(System.in);
+        String str = s.nextLine();
+        while(! str.equals("bye")) {
+            if(str.equals("list")){
+                for(int i = 0; i < list.size(); i++){
+                    System.out.println((i+1) + ". " + list.get(i));
+                }
+            }
+            else {
+                list.add(str);
+                System.out.println("added: " + str);
+            }
+            str = s.nextLine();
+        }
+        System.out.println("Bye. Hope to see you again soon!");
+    }
+}

src/main/java/Duke_Level3.java

@@ -0,0 +1,37 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+public class Duke_Level3 {
+    public static void main(String[] args) {
+        List<String> list = new ArrayList<>();
+        list.add("read book");
+        list.add("return book");
+        list.add("buy bread");
+        Scanner s = new Scanner(System.in);
+        String str = s.nextLine();
+        String[] done = new String[100];
+        while(true){
+            if(str.equals("list")){
+                System.out.println("Here are the tasks in your list:");
+                for(int i = 1; i <= list.size(); i++){
+                    System.out.println(done[i] + list.get(i - 1));
+                }
+            }
+            else{
+                if(str.substring(0, 4).equals("mark")){
+                    int temp = Integer.parseInt(str.substring(5));
+                    done[temp] = "[X] ";
+                    System.out.println("Nice! I've marked this task as done: ");
+                    System.out.println(done[temp] + list.get(temp - 1));
+                }
+                else{
+                    int temp = Integer.parseInt(str.substring(7));
+                    done[temp] = "[] ";
+                    System.out.println("OK, I've marked this task as not done yet:");
+                    System.out.println(done[temp] + list.get(temp - 1));
+                }
+            }
+            str = s.nextLine();
+        }
+    }
+}

src/main/java/Duke_Level4.java

@@ -0,0 +1,85 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+public class Duke_Level4 {
+    public static void main(String[] args) {
+        String logo = " ____        _        \n"
+                + "|  _ \\ _   _| | _____ \n"
+                + "| | | | | | | |/ / _ \\\n"
+                + "| |_| | |_| |   <  __/\n"
+                + "|____/ \\__,_|_|\\_\\___|\n";
+        System.out.println("Hello from\n" + logo);
+        System.out.println("What can I do for you?");
+        List<String> list = new ArrayList<>();
+        String[] task = new String[100];
+        for (int i = 0; i < task.length; i++) {
+            task[i] = "[]";
+        }
+        String[] done = new String[100];
+        for (int i = 0; i < done.length; i++) {
+            done[i] = "[] ";
+        }
+        Scanner s = new Scanner(System.in);
+        String str = s.nextLine();
+        while(! str.equals("bye")){
+            if(str.substring(0, 4).equals("mark")){
+                int temp = Integer.parseInt(str.substring(5));
+                done[temp] = "[X] ";
+                System.out.println("Nice! I've marked this task as done: ");
+                System.out.println(task[temp] + done[temp] + list.get(temp - 1));
+            }
+            else if(str.equals("list")){
+                System.out.println("Here are the tasks in your list:");
+                for (int i = 0; i < list.size(); i++) {
+                    System.out.println((i + 1) + ". " + task[i] + done[i] + list.get(i));
+                }
+            }
+            else if (str.startsWith("todo")) {
+                list.add(str.substring(5));
+                int lastIndex = list.size() - 1;
+                if (lastIndex >= 0) {
+                    task[lastIndex] = "[T]";
+                    done[lastIndex] = "[] ";
+                    System.out.println("Got it. I've added this task:");
+                    System.out.println(task[lastIndex] + done[lastIndex] + list.get(lastIndex));
+                } else {
+                    System.out.println("Got it. I've added this task:");
+                    System.out.println("[T][] " + list.get(0));
+                }
+                System.out.println("Now you have " + list.size() + " tasks in the list.");
+            }
+            else if(str.startsWith("event")) {
+                String[] splits = str.split("/from");
+                task[list.size()] = "[E]";
+                done[list.size()] = "[] ";
+                int idxfrom = str.indexOf("/from");
+                int idxto = str.indexOf("/to");
+                String from = str.substring(idxfrom + 6, idxto);
+                String to = str.substring(idxto + 4);
+                String temp = "(from: " + from + "to: " + to + ")";
+                list.add(splits[0] + temp);
+                System.out.println("Got it. I've added this task:");
+                System.out.println(task[list.size() - 1] + done[list.size() - 1] + list.get(list.size() - 1));
+                System.out.println("Now you have " + list.size() + " tasks in the list.");
+            }
+            else if(str.startsWith("unmark")) {
+                int temp = Integer.parseInt(str.substring(7));
+                done[temp] = "[] ";
+                System.out.println("OK, I've marked this task as not done yet:");
+                System.out.println(task[temp] + done[temp] + list.get(temp - 1));
+            }
+            else if(str.startsWith("deadline")){
+                task[list.size()] = "[D]";
+                done[list.size()] = "[] ";
+                String temp = " (by: " + str.split("/by")[1].trim() + ")";
+                list.add(str.substring(8).split("/by")[0].trim() + temp);
+                System.out.println("Got it. I've added this task:");
+                System.out.println(task[list.size() - 1] + done[list.size() - 1] + list.get(list.size() - 1));
+                System.out.println("Now you have " + list.size() + " tasks in the list.");
+            }
+            str = s.nextLine();
+        }
+        System.out.println("Bye. Hope to see you again soon!");
+    }
+}
+

src/main/java/Duke_Level5.java

@@ -0,0 +1,2 @@
+package PACKAGE_NAME;public class Duke_Level5 {
+}

src/main/java/EventTask.java

@@ -0,0 +1,2 @@
+package PACKAGE_NAME;public class EventTask {
+}

src/main/java/Task.java

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+package PACKAGE_NAME;public class Task {
+}