HTML/CSS, JavaScript, Java Algorithms, and SQL Online Test

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The HTML/CSS, JavaScript, Java Algorithms, and SQL online test assesses candidates' knowledge across the whole Web stack from HTML, CSS, and JavaScript on the Web front-end over algorithmic-thinking skills in Java on the back-end to SQL for data access.

It's an ideal test for pre-employment screening. A good full stack Java developer needs to be able to use a wide range of technologies, and solve back-end problems of a significant computational complexity.

This online test requires candidates to solve coding problems, find and fix bugs in multiple technologies, and analyze or design an algorithm using Java as the programming language.

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Free Sample Questions for HTML/CSS, JavaScript, Java Algorithms, and SQL Test

Our sample questions are free for companies to use on a trial plan. See more about our premium questions for paid plans below.



HTML/CSS Borders Element Size Styling Public

Every user on your website has an image avatar that is displayed when they post a comment. You want to style these images differently from other images on your site. Add a CSS class named avatar that fulfils the following requirements:

  1. The avatar's border is rounded, so that it appears as a circle.
  2. The avatar's width and height are both 150px.
  3. The avatar has a solid border, has a width of 2px, and be colored gray.

For example, the avatar in the template should look like:

Cat avatar

Binary Search Tree


Java Algorithmic Thinking Recursion Tree Public

A three-node binary tree.Binary search tree (BST) is a binary tree where the value of each node is larger or equal to the values in all the nodes in that node's left subtree and is smaller than the values in all the nodes in that node's right subtree.

Write a function that, efficiently with respect to time used, checks if a given binary search tree contains a given value.

For example, for the following tree:

  • n1 (Value: 1, Left: null, Right: null)
  • n2 (Value: 2, Left: n1, Right: n3)
  • n3 (Value: 3, Left: null, Right: null)

Call to contains(n2, 3) should return true since a tree with root at n2 contains number 3.



SQL Aggregation Select Public

Given the following data definition, write a query that returns the number of students whose first name is John. String comparisons should be case sensitive.

TABLE students
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL
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Premium Questions for HTML/CSS, JavaScript, Java Algorithms, and SQL Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Question Names

These premium questions are included in this pre-built test and can be added to any multi-skill test. Please sign up for a paid plan to view the questions in detail.

Filter, Positive Numbers, Links, Double, Truthy Expressions, Roads, New Folder, Max Sum, Log Patch, Loading Bar, Segment, Hobbies, A Tag, Ad, Article Style, ATM Locations, Authors, Autocomplete, Baby Names, Ban Users, Bank Branches, Cheapest Product, Christmas Tree, Cities, Countries, Developers, Editor, Employee Manager, Veterinarian, Format Table, Hide Button, Hospital Patients, Index Performance, Menu Items, Merge Stock Index, Movies, Movies Live, Projects, Rectangles, Restaurant Menu, Retirees, Sales, SMS Messages, Tasks, Youngest Child, Keywords, Label Color, Loading, Logo, Paragraph, Platformer, Products, Remove Repetitions, Row Appender, Scale Font Size, Shirts, Snapshot, Timesheet, Unique Numbers, Upload, Username, Vectors, Warehouse, Widgets, Delete Orders, Timer, Book Sale, Friend, Screen, Email Tables, Average Salary, Auto Show, Poll, Array Search, Department Report, iframe, Post Comment, Cards, Validation, Table of Names, Stories, Student Rankings, Student Max Score, Data Entry, Moving Total, Car Rental, Paper Strip, Max Sum, Reorder, Ingredients, Launch Time, Product Rating, Function Wrapper, Link, Users and Accounts, Matching Clothes, Agents, River Discharge, Internal Nodes, Log Parser, Height, Unique Numbers, Manager Sales, Load URL, Photon Frequency, Price List, Ice Cream Flavors, Addition, Movie Genres, Student Activities, Welfare Organization, Date Transform, Transactions, Trading Data Paging, Unique Product, Unique Product, Color Codes, Memory Game, Flight Connections, Tax Calculator, Special Actions, Bookmark, TestDome Logo, Screen Reader, Share Button, Game Offer, Bicycle Report, Curious Leaf, Gaming Console, Travel Blog, Confirm, Blog
Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

JavaScript Arrays Closures HTML/CSS CSS Selectors Styling DOM Manipulation Event Handling Language SQL Conditions Views Strings Java Algorithmic Thinking Monkey Patching HTML5 Arithmetic Iteration Attribute Manipulation Element Spacing Constraints Create Table Database Schema Select Create Index Performance Tuning Flexbox Positioning Alter Table Aggregation Subqueries Fonts Ordering Bug Fixing Elements and Attributes Left Join Queue Asynchronous Calls Indexes Union Group by Update Insert Joins Animation Regex Data Structures Linked List JSON Serialization Sorting StringBuilder Content Manipulation Forms Objects Tables HashMap Delete Callback Graphs Classes ECMAScript 2015 Borders Inline Styles SQL CASE Recursion Hyperlink IFrame Dynamic Programming HashSet Timing Events Exceptions Right Join Database Normalization Tree XML Dictionary CTE Ajax HTTP Promise Selectors Responsive Design CSS Advanced Element Size Pagination Associative Arrays Bookmarks CSS Layout Accessibility CSS Basics UI Dialog Box Semantic Tags
Recommended Job Roles

These are the job roles that we recommend for the HTML/CSS, JavaScript, Java Algorithms, and SQL online test.

Full-Stack Developer
Java Developer
JavaScript Developer
SQL Developer
Web Developer

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