kasan kulasegaramLeetcode problem:-Number of Islandsclass Solution { public int numIslands(char[][] grid) { int count = 0; for(int i=0;i<grid.length;i++){ for(int…Aug 1, 2023Aug 1, 2023
kasan kulasegaramspring cloud is very helpful in developing micro services.redeployment is required if any changes are made to properties files.so it is good to separate the environmental settings from the code.so…Jul 3, 2023Jul 3, 2023
kasan kulasegaramDeep dive on ConcurrentHashMap and Collections.synchronizedMap() methodCollections util is a class which has a method called synchronizedMap() to make the Map Thread safe. synchronizedMap() returns a…May 5, 2023May 5, 2023
kasan kulasegaramHow does Java Collection forEach method work? Here is an In-depth AnalysisForeach is used to iterate a Collection such as List ,Set,etc.Let me take an example :- list.forEach((item)->System.out.println(item)); or…May 4, 2023May 4, 2023
kasan kulasegaramFind the longest Palindromic String in a Given StringLongest Palindromic Substring-(Leetcode Problem)Dec 25, 2022Dec 25, 2022
kasan kulasegaramArray (Contains Duplicate)Here I can use either Set or Map .Set contains the unique elements.so in Java Set add() Method return false when the element already…Jun 16, 2022Jun 16, 2022
kasan kulasegaramA Naked HashMapHashMap contains an array of Node(Node<K,V>[]) to store values.which is called as bucket.Imagine a situation when two values are stored in…Jun 5, 2022Jun 5, 2022
kasan kulasegaramLeetCode Problem 1762.Here I resolve this problem by using a monotonic Stack where the elements are decreasing .if a building overlooks the ocean , the…Feb 18, 2022Feb 18, 2022
kasan kulasegaramFinal Prices With a Special Discount in a Shop https://leetcode.com/problems/final-prices-with-a-speclass Solution { public int[] finalPrices(int[] prices) { int[] arr = new int[prices.length]; Queue<Integer> queue = new…Feb 9, 2022Feb 9, 2022
kasan kulasegaramTwo pointer techniqueTwo pointer technique is used to search a single pair of elements in a sorted array. it helps to reach better time complexity and makes the…Jan 11, 2022Jan 11, 2022
