From bf2895b1b86b2e0524b8985995bf1040b3305a4d Mon Sep 17 00:00:00 2001
From: PingruiLi <lipingrui2001@gmail.com>
Date: Sun, 21 Feb 2021 20:34:44 +0800
Subject: [PATCH] add method with lambda

---
 src/se/edu/inclass/Main.java | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/se/edu/inclass/Main.java b/src/se/edu/inclass/Main.java
index 3781393..074f2b9 100644
--- a/src/se/edu/inclass/Main.java
+++ b/src/se/edu/inclass/Main.java
@@ -6,6 +6,7 @@
 import se.edu.inclass.task.TaskNameComparator;
 
 import java.util.ArrayList;
+import java.util.Locale;
 import java.util.stream.Collectors;
 
 public class Main {
@@ -21,6 +22,11 @@ public static void main(String[] args) {
 
         System.out.println("Total number of deadlines: " + countDeadlines(tasksData));
 
+        printDeadlineWithStream(tasksData);
+        ArrayList<Task> filteredTasks = filterTaskByString(tasksData, "11");
+        System.out.println("Filtered tasks");
+        printData(filteredTasks);
+
     }
 
     private static int countDeadlines(ArrayList<Task> tasksData) {
@@ -46,4 +52,19 @@ public static void printDeadlines(ArrayList<Task> tasksData) {
             }
         }
     }
+
+    public static void printDeadlineWithStream(ArrayList<Task> tasks) {
+        System.out.println("Print with stream:");
+        tasks.stream().
+                filter((t) -> (t instanceof Deadline)).
+                sorted((t1, t2) -> t1.getDescription().toLowerCase(Locale.ROOT).compareTo(t2.getDescription().toLowerCase(Locale.ROOT))).
+                forEach(System.out::println);
+    }
+
+    public static ArrayList filterTaskByString(ArrayList<Task> tasks, String filterString) {
+        ArrayList<Task> filteredTasks = (ArrayList<Task>) tasks.stream()
+                .filter((t) -> t.getDescription().contains(filterString))
+                .collect(Collectors.toList());
+        return filteredTasks;
+    }
 }