From 1984c2db8cf18516bb8d20827d985fd8b9df8554 Mon Sep 17 00:00:00 2001
From: e0426051 <e0426051@u.nus.edu>
Date: Fri, 18 Sep 2020 02:40:25 -0700
Subject: [PATCH] add lambda examples

---
 src/se/edu/inclass/Main.java | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/se/edu/inclass/Main.java b/src/se/edu/inclass/Main.java
index 3781393..0635677 100644
--- a/src/se/edu/inclass/Main.java
+++ b/src/se/edu/inclass/Main.java
@@ -8,6 +8,8 @@
 import java.util.ArrayList;
 import java.util.stream.Collectors;
 
+import static java.util.stream.Collectors.toList;
+
 public class Main {
 
     private TaskNameComparator taskNameComparator;
@@ -20,7 +22,10 @@ public static void main(String[] args) {
         printDeadlines(tasksData);
 
         System.out.println("Total number of deadlines: " + countDeadlines(tasksData));
-
+        printDeadlinesUsingStreams(tasksData);
+        for (Task t: filterByString(tasksData,"11")) {
+            System.out.println(t);
+        }
     }
 
     private static int countDeadlines(ArrayList<Task> tasksData) {
@@ -46,4 +51,21 @@ public static void printDeadlines(ArrayList<Task> tasksData) {
             }
         }
     }
+
+    public static void printDeadlinesUsingStreams(ArrayList<Task> tasksData) {
+        tasksData.stream()
+                .filter((s) -> s instanceof Deadline)
+                .sorted((a,b) -> a.getDescription().toLowerCase().
+                        compareTo(b.getDescription().toLowerCase()))
+                .forEach(System.out::println);
+    }
+
+    public static ArrayList<Task> filterByString(ArrayList<Task> tasksData, String filterString) {
+        ArrayList<Task> filteredTaskList = (ArrayList<Task>) tasksData.stream()
+                .filter((s) -> s.getDescription().contains(filterString))
+                .collect(toList());
+
+        return filteredTaskList;
+    }
+
 }