Android and Java Online Test

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About the test

The Android and Java online test assesses knowledge of the developing Android applications using its primary programming language, Java.

The assessment includes work-sample tasks such as:

  • Configuring UI elements, such as list view and linear layout.
  • Understanding the life cycle of an activity and working within it.
  • Working with classes, objects, and interfaces to write reusable code.

A good Android app developer needs to effectively use the Android SDK and the Java programming language to design and create quality Android applications.

Sample public questions

Easy
10 min
code
Public
Java
Interfaces
Inversion of Control
Refactoring

Refactor the AlertService and MapAlertDAO classes:

  • Create a new package-private interface, named AlertDAO, that contains the same methods as MapAlertDAO.
  • MapAlertDAO should implement the AlertDAO interface.
  • AlertService should have a public constructor that accepts AlertDAO.
  • The raiseAlert and getAlertTime methods should use the object passed through the constructor.
Hard
3 min
mca
Public
Android
Multithreading

Consider the following code:

@Override
protected void onResume() {
    super.onResume();
    mp = MediaPlayer.create(getBaseContext(), R.raw.sound);
    Thread timer = new Thread() {
        @Override
        public void run() {
            try {
                Thread.sleep(1000);
                Intent main = new Intent(Splash.this, MainActivity.class);
                startActivity(main);
                finish();
            } catch (InterruptedException e) {}
        }
    };
    timer.start();
    mp.start();
}

@Override
protected void onPause() {
    super.onPause();
    if (mp != null) {
        if (mp.isPlaying()) {
            mp.stop();
        }
        mp.release();
        mp = null;
    }
}

Select the statements that are correct if the wave file sound is 3 seconds long.

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85 more premium Android and Java questions

Document Store, Driver Exam, Chain Link, Document Counter, Hobbies, Linear Layout, List View, Node, Product, Snapshot, Snow Storm, Text Scaling, Username, Utilities, Weighted Average, Recycler View, Battery Life, Shining Star, Kilometer Converter, Crop Ratio, Integer Utilities, Fire Dragon, Log Parser, String Occurrence, Worker, Manifest, Segment, Shelf Test, Read Write Execute, Read First Line, Max Sum, Unique Numbers, Friend, Stories, Moving Total, Internal Nodes, Veterinarian, Wheel Defects, Paper Strip, Flight Connections, Special Actions, Car Rental, Language Teacher, Results Button, Shopping Details, Layout Terms, Home Workout, Fragments, Social Life, Platformer, Circuit Simulator, Vectors, Relative Layout, Date Transform, Racer, Book Sale, Mock Library, Patient Class, Unique Product, Reward Points, Tax Calculator, Test Results, Numbers To Text, Ceramic Store, Stack to List, Config Element, Tiles, New Folder, Planet Search, Airport Networks, Shipping, Digital Flasks, Company Stock, Construction Game, Chemical Machine, Speed Monitor, Flimsy Ladder, Paragraph, Animal Hierarchy, Procedural Generator, Moving Steps, Agreement Terms, Live Score, Action Stack, Calories Burned.

Skills and topics tested

  • Java
  • Bug Fixing
  • Language
  • Exceptions
  • Linked List
  • OOP
  • Refactoring
  • HashMap
  • Iteration
  • Lists
  • Android
  • Linear Layout
  • UI
  • List View
  • Recursion
  • Tree
  • Accessibility Levels
  • ArrayList
  • Responsiveness
  • Regex
  • Strings
  • Class Modifiers
  • Arithmetic
  • Battery Life Optimization
  • TDD
  • Inheritance
  • Method Overriding
  • Integer Division
  • Performance Tuning
  • Higher Order Function
  • Interfaces
  • Serialization
  • XML
  • Stream
  • Memory Management
  • Configuration
  • Test Case Design
  • Unit Testing
  • Algorithmic Thinking
  • Graphs
  • Dynamic Programming
  • HashSet
  • Arrays
  • Queue
  • StringBuilder
  • Sorting
  • Life Cycle
  • Fragments
  • Layout
  • Data Structures
  • Conditions
  • Relative Layout
  • Multithreading
  • Synchronization
  • Dynamic Proxy Classes
  • Abstract Class
  • Classes
  • Objects
  • Stream API
  • Complexity
  • Stack
  • Generics
  • AI Code Review
  • Conditional Statements
  • Loops
  • Random
  • Animation
  • Activity
  • Android Service

For job roles

  • Android Developer
  • Mobile Developer

Sample candidate report

What others say

Decorative quote

Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

Product reviews

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G2 - High Performer (2022)
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