Tag: ArrayList

Leetcode 21 Merge Two Sorted Lists Java Solution

Merge two sorted linked lists and return it as a new sorted list. The new list should be made by splicing together the nodes of the first two lists. Example: Input: 1->2->4, 1->3->4 Output: 1->1->2->3->4->4 Solution 1: public class Solution { public ListNode mergeTwoLists(ListNode l1, ListNode l2) { ListNode p1 = l1; ListNode p2 = l2; ListNode…… Continue reading Leetcode 21 Merge Two Sorted Lists Java Solution

Java ArrayList With Example

ArrayList is a resizable implementation of List interface, ArrayList can also be called as a dynamic Array. Like Array, ArrayList stores similar data type elements which can increase its size dynamically.ArrayList cannot store primitive data types like int and char, it can only store non-primitive data types like Integer, String, etc..The index of the ArrayList…… Continue reading Java ArrayList With Example