## Frontend interview questions

Questions you may get asked: 10 Interview Questions Every JavaScript Developer Should Know Front-End Job Interview Questions Front End Web Development Quiz Interview Questions for Front-End-Developer JavaScript Web Quiz Questions you ask: An open source list of developer questions to ask prospective employers Preparing: Preparing for a Front-End Web Development Interview in 2017 Interview Cake  — … Read more

## Why is String immutable in java?

This question has been asked in a number of interviews in the past and is still being asked. If you search google for this question you will find people trying to answer this question. But no one has been able to answer it properly and no one except the Java designers can really answer. We … Read more

## Predict the Winner -Leetcode

Given an array of scores that are non-negative integers. Player 1 picks one of the numbers from either end of the array followed by the player 2 and then player 1 and so on. Each time a player picks a number, that number will not be available for the next player. This continues until all … Read more

## Leetcode – Zuma Game

Think about Zuma Game. You have a row of balls on the table, colored red(R), yellow(Y), blue(B), green(G), and white(W). You also have several balls in your hand. Each time, you may choose a ball in your hand, and insert it into the row (including the leftmost place and rightmost place). Then, if there is … Read more

## Number Complement – Leetcode

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading zero bit in the integer’s binary representation. Example 1:

Example 2:

## Max Consecutive Ones – Leetcode

Given a binary array, find the maximum number of consecutive 1s in this array. Example 1:

Note: The input array will only contain 0 and 1. The length of input array is a positive integer and will not exceed 10,000   Solution This is an easy to solve problem. We keep on counting the ones till a … Read more

## Construct the Rectangle Leetcode

Given a specific rectangular web page’s area, your job by now is to design a rectangular web page, whose length L and width W satisfy the following requirements:

You need to output the length L and the width W of the web page you designed in sequence. Example:

Note: The given area … Read more

## How to find a word inside a folder recursively in linux?

This can be done using grep command.

If you are searching in current directory use dot(.) as shown below

Options we have used -n                   : Show relative line number in the file -r                    :  Recursively … Read more

## Unsupported major.minor version 52.0

Recently we migrated to Java 8 from Java 7. And after installing Java 8 on my system, running any test threw the exception

And the solution for me was to run Maven > Update Project from context menu. You can also update the classpath of your project from command line using the following command … Read more

## Binary Tree Paths

Problem Given a binary tree, return all root-to-leaf paths. Define a tree with left and right nodes

Create Binary Tree and print path