Author: Arpit Mandliya

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see how to print numbers from 1 to N without using loop in Java. Problem Print number from 1 to N without using any loop. N=10 Output: 1 2 3 4 5 6 […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see how to find all subsets of set or power set in java. Problem Given a set of distinct integers, arr, return all possible subsets (the power set). For example: Input: nums = [1,2,3] Output: […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see how to find all permutations of the array in java. Problem 1 Given array of distinct integers, print all permutations of the array. For example: array : [10, 20, 30] Permuations are : […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this post, we will see about how to count all paths from top left to bottom right of MxN matrix. Problem We need to count all paths from top left to bottom right of MxN matrix. You can […]

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions. In this tutorial, we will see about Memoization example in java. Let me start with the question. Would you like to do same task again and again when you know that it is going to give you same […]

If you want to practice data structure and algorithm programs, you can go through 100+ java coding interview questions. In this post, we will see how to find Intersection of two linked lists. Problem Given two singly linked lists, find if two linked lists intersect. If they intersect, find intersection point. Solution Here is simple algorithm to […]

In this tutorial, we will see about JSON server. Let’s say you are front-end developer and need to integrate backend calls with REST APIs but you came to know from backend team that REST APIs are not completed yet and will take some time to do the coding. How will you proceed now? JSON server […]

In this post, we will see how to convert Java Collection to List. There are many ways to do it, we will see two ways here. Using ArrayList constructor [crayon-6788002b1c208783374682/] Above ArrayList‘s constructor creates a list having the elements of the specified collection, in the order they are returned by the collection’s iterator. Using Java […]

Shuffle method is to permute passed list with default or specified randomness. Syntax [crayon-6788002b1c2cd330426977/] Example : Let’s see both the function with the help of example. [crayon-6788002b1c2d0939859217/] When you run above program, you will get below output: ========================== Before shuffling [John, Martin, Mohan, Mary, Tom] ========================== After shuffling [Mohan, Martin, Mary, Tom, John] ========================== After shuffling […]