From 83f15cac09565a4616d48ec2cb950f95c1e84060 Mon Sep 17 00:00:00 2001
From: wangwaynesg <wangwaynesg@gmail.com>
Date: Fri, 18 Sep 2020 17:05:22 +0800
Subject: [PATCH] Add printing using streams

---
 src/se/edu/inclass/Main.java | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/se/edu/inclass/Main.java b/src/se/edu/inclass/Main.java
index 3781393..c7df474 100644
--- a/src/se/edu/inclass/Main.java
+++ b/src/se/edu/inclass/Main.java
@@ -16,10 +16,12 @@ public static void main(String[] args) {
         DataManager dm = new DataManager("./data/data.txt");
         ArrayList<Task> tasksData = dm.loadData();
 
-        System.out.println("Printing deadlines");
-        printDeadlines(tasksData);
+        printDeadlinesUsingStreams(tasksData);
 
-        System.out.println("Total number of deadlines: " + countDeadlines(tasksData));
+//        System.out.println("Printing deadlines");
+//        printDeadlines(tasksData);
+
+        System.out.println("Total number of deadlines: " + countDeadlinesUsingStreams(tasksData));
 
     }
 
@@ -39,6 +41,30 @@ public static void printData(ArrayList<Task> tasksData) {
         }
     }
 
+    public static void printDataUsingStreams(ArrayList<Task> tasksData) {
+        System.out.println("Printing data using streams");
+        tasksData.stream()
+                .forEach(System.out::println);
+    }
+
+    public static void printDeadlinesUsingStreams(ArrayList<Task> tasksData) {
+        System.out.println("Printing deadlines using streams");
+        tasksData.stream()
+                .filter(t -> t instanceof Deadline)
+                .forEach(System.out::println);
+    }
+
+    public static int countDeadlinesUsingStreams(ArrayList<Task> tasksData) {
+        System.out.println("Calculating count using streams");
+        int count = 0;
+
+        count = (int) tasksData.stream()
+                .filter(t -> t instanceof Deadline)
+                .count();
+
+        return count;
+    }
+
     public static void printDeadlines(ArrayList<Task> tasksData) {
         for (Task t : tasksData) {
             if (t instanceof Deadline) {