// 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?
710,495 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 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
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?
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.
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)
Using Collabedit, write a program to find the index of the first non-repeated character in a java string.
Nothing unexpected, I solved all the problems but I think I was too slow on the first one, which goes like: Given an array of numbers, they are arranged so that the a[0] is in the 1st bucket, a[1]a[2] are in the 2nd bucket, a[3]a[4]a[5] is in the 3rd bucket and so on. The question is then: given a number, you need to return if it is in any bucket or not.
Given a string with parenthesis like "()()(()(()()", check to see if there are matching pairs. If there are matching pairs, return true, else return false. For example, ()()() returns true, ()()()) returns false.
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