ArrayList and LinkedList both implements List interface and maintains insertion order. Both are non synchronized classes.   But there are many differences between ArrayList and LinkedList classes that are given below.   ArrayList    V/s     LinkedList ::   1) ArrayList internally uses dynamic array to store the elements.                    Whereas LinkedList internally uses doubly linked list to store the elements.   2) Manipulation with ArrayList is slow because it internally uses array. If any element is removed from the array, all the bits are shifted in memory.                    Whereas Manipulation with LinkedList is faster than ArrayList because it uses doubly linked list so no bit shifting is required in memory.   3) ArrayList class can act as a list only because it implements List only.                    Whereas LinkedList class can act as a list and queue both because it implements List and Deque interfaces.   4) ArrayList is better for storing and accessing data.                    Whereas LinkedList is better for manipulating data.

1. अंतर्राष्ट्रीय बाघ दिवस हर साल 29 जुलाई को मनाया जाता है। 

2. इस दिन को वैश्विक बाघ दिवस भी कहा जाता है। 

3. यह दिन हर साल बाघ संरक्षण के प्रति जागरूकता बढ़ाने के लिए मनाया जाता है।