From 7a66faa0fd1932534e795bd39dd49629821ca25f Mon Sep 17 00:00:00 2001
From: tsriganesh2007 <tsriganesh2007@gmail.com>
Date: Thu, 11 Jun 2026 17:17:50 +0000
Subject: [PATCH] added  Mark All Tasks as Completed

---
 src/ToDoList.java | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/src/ToDoList.java b/src/ToDoList.java
index e9aea00..821b74f 100644
--- a/src/ToDoList.java
+++ b/src/ToDoList.java
@@ -1,5 +1,4 @@
 package todolist;
-
 import java.util.ArrayList;
 import java.util.Scanner;
 
@@ -33,11 +32,12 @@ public static void main(String[] args) {
                 case 1 -> addTask();
                 case 2 -> viewTasks();
                 case 3 -> markTaskCompleted();
-                case 4 -> deleteTask();
-                case 5 -> System.out.println("Goodbye!");
+                case 4 -> markAllTaskCompleted();
+                case 5 -> deleteTask();
+                case 6 -> System.out.println("Goodbye!");
                 default -> System.out.println("Invalid option. Try again.");
             }
-        } while (choice != 5);
+        } while (choice != 6);
     }
 
     private static void printMenu() {
@@ -45,8 +45,9 @@ private static void printMenu() {
         System.out.println("1. Add a Task");
         System.out.println("2. View All Tasks");
         System.out.println("3. Mark Task as Completed");
-        System.out.println("4. Delete a Task");
-        System.out.println("5. Exit");
+        System.out.println("4. Mark All Tasks as Completed");
+        System.out.println("5. Delete a Task");
+        System.out.println("6. Exit");
     }
 
     private static void addTask() {
@@ -78,7 +79,13 @@ private static void markTaskCompleted() {
             System.out.println("Invalid task number.");
         }
     }
-
+    private static void markAllTaskCompleted(){
+        if(tasks.isEmpty())return;
+        for(int i=0;i<tasks.size();i++){
+            tasks.get(i).isDone = true;
+        }
+        System.out.println("Completed!");
+    }
     private static void deleteTask() {
         viewTasks();
         if (tasks.isEmpty()) return;