Updated README and FindCommand when no task is found

anqi20 · Oct 1, 2020 · 7dad94a · 7dad94a
1 parent ab519d3
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diff --git a/docs/README.md b/docs/README.md
@@ -11,9 +11,12 @@ Prerequisites: Java 11.
 3. Go into the directory containing the ip.jar file. 
     1. Use `cd` to enter the directory. 
     2. Use `ls` or `dir` to list all the files in the specific directory. 
-4. Type `java -jar ip.jar` into the command prompt. 
-5. Enter to start the program. 
+4. Type `chcp 65001` into the command prompt. 
+5. Press enter at the command prompt. 
+6. Type `java -Dfile.encoding=UTF-8 -jar ip.jar` into the command prompt. 
+7. Press enter to start the program. 
 
+> Note: If the status icons appear as ? instead of ✓ or ✘, change the font of the command promp to NSimSun. 
 
    ```
    Hello from

diff --git a/src/main/java/duke/commands/FindCommand.java b/src/main/java/duke/commands/FindCommand.java
@@ -27,20 +27,26 @@ public FindCommand(String userCommand) {
      */
     @Override
     public void execute(TaskList taskList, Storage storage) {
-        int numberOfTasks = taskList.getSize();
+        int numberOfTasks = 0;
         ArrayList<Task> currentList = new ArrayList<>();
 
         try {
             String userCommandDescription = userCommand.substring(Constants.LENGTH_OF_FIND+1).trim();
 
-            for(int i=0; i<numberOfTasks; i++) {
+            for(int i=0; i<taskList.getSize(); i++) {
                 Task task = taskList.get(i);
 
                 if(task.getDescription().contains(userCommandDescription)) {
                     currentList.add(task);
+                    numberOfTasks++;
                 }
             }
-            Ui.printFind(currentList);
+
+            if(numberOfTasks == 0) {
+                Ui.printFindNothing();
+            } else {
+                Ui.printFind(currentList);
+            }
 
         } catch (StringIndexOutOfBoundsException e) {
             Ui.printFormattingInvalid(); //Wrong formatting was given

diff --git a/src/main/java/duke/ui/Ui.java b/src/main/java/duke/ui/Ui.java
@@ -173,13 +173,28 @@ public static void printHelp() {
         printDashLine();
     }
 
+    /**
+     * Prints the message when the user finds certain keywords.
+     * Prints the list of tasks which contains the keywords.
+     *
+     * @param list of tasks which contains the keywords.
+     */
     public static void printFind(ArrayList<Task> list) {
         printDashLine();
         System.out.println("Here are the matching tasks in your list: ");
         printEntireList(list);
         printDashLine();
     }
 
+    /**
+     * Prints the message when all the tasks do not contain the keywords.
+     */
+    public static void printFindNothing() {
+        printDashLine();
+        System.out.println("There is no matching task in your list. ");
+        printDashLine();
+    }
+
     /**
      * Prints the error message when there is problems with the formatting.
      */