@@ -0,0 +1,494 @@
+package seedu.taskell.commons.events.model;%0A%0Aimport java.util.ArrayList;%0A%0Aimport seedu.taskell.commons.events.BaseEvent;%0A%0Apublic class DisplayListChangedEvent extends BaseEvent %7B%0A    %0A    private ArrayList%3CString%3E list;%0A    %0A    public DisplayListChangedEvent(ArrayList%3CString%3E list) %7B%0A        this.list = list;%0A    %7D%0A%0A    @Override%0A    public String toString() %7B%0A        return this.getClass().getSimpleName();%0A    %7D%0A    %0A    public ArrayList%3CString%3E getList() %7B%0A        return list;%0A    %7D%0A%0A%7D%0A

add event to notify when DisplayPanel on UI should be updated