// Given var endorsements = [ { skill: 'css', user: 'Bill' }, { skill: 'javascript', user: 'Chad' }, { skill: 'javascript', user: 'Bill' }, { skill: 'css', user: 'Sue' }, { skill: 'javascript', user: 'Sue' }, { skill: 'html', user: 'Sue' } ]; getSkills = (endorsements) => { // Result // [ // { skill: 'javascript', user: ['Chad', 'Bill', 'Sue'], count: 3 }, // { skill: 'css', user: ['Sue', 'Bill'], count: 2 }, // { skill: 'html', user: ['Sue'], count: 1 } // ]; } see this image: http://i.imgur.com/UIeB3n4.png
Desarrollador Java Interview Questions
Desarrollador Java Interview Questions
En una entrevista para un puesto de desarrollador Java, prepárate para responder preguntas técnicas destinadas a evaluar tus conocimientos básicos de Java. El posible que también te formulen preguntas abiertas para evaluar tus habilidades de programación y de resolución de problemas. Prepárate para afrontar preguntas no técnicas centradas en tus habilidades de comunicación interpersonal, de organización del tiempo y de ética en el trabajo.
Preguntas de entrevista más frecuentes para desarrollador/a Java y cómo responderlas
Pregunta n.º 1: ¿Cuál es la diferencia entre HashTable y HashMap en Java?
Pregunta n.º 2: Escribe un programa para determinar si 243 es un número Armstrong.
Pregunta n.º 3: ¿Cómo lograrías elaborar código de calidad si tuvieras que simultanear varios proyectos Java?
710,420 desarrollador java interview questions shared by candidates
Given two sorted arrays. Write a method that returns the intersection of the arrays. Ex. [2,4,3,6] and [8,9,2,4] would return [2,4].
Write a function that computes the intersection of two arrays. The arrays are sorted. Then, what if one array is really larger than the other array?
Given a TV remote, write a script that would give directions to input some letters. Starting from the upper left-hand corner. If the buttons were in 3 columns, and you wanted to type "feed", you would want the output of the program to say "right, right, down, PRESS, left, PRESS, PRESS, left, PRESS"
Implement string rotateString(string input, int amt)
Write a function that takes the ordinal number of a column in a spreadsheet and returns the label of that column: i.e. 1 -> A 2 -> B, 26 -> Z, 27->AA
you have an array of stock prices. i-th element in that array represents the stock price of that day. find the buy and sell dates to maximize profit.
Using Collabedit, write a program to find the index of the first non-repeated character in a java string.
Suppose you have a matrix of numbers. How can you easily compute the sum of any rectangle (i.e. a range [row_start, row_end, col_start, col_end]) of those numbers? How would you code this?
Find Kth smallest element in a BST.
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