Java Challenges
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| Author | : Michael Inden |
| Publisher | : Apress |
| Total Pages | : 768 |
| Release | : 2021-12-04 |
| Genre | : Computers |
| ISBN | : 9781484273944 |
Expand your knowledge of Java with this entertaining learning guide, which features 100+ exercises and programming challenges. Java Challenges will prepare you for your next exam or job interview, and covers many practical topics, such as strings, arrays, data structures, recursion, and date and time. The APIs and other material included in this book are Java 17 compatible. Each topic is addressed in its own separate chapter, starting with an introduction to the basics and followed by multiple exercises of varying degrees of difficulty, helping you to improve your programming skills effectively. Detailed sample solutions, including the algorithms used for all tasks, are included to maximize your understanding of each area. Author Michael Inden also describes alternative solutions and analyzes possible pitfalls and typical errors. Three appendices round out the book: one covering JShell, which is often helpful for trying out the code snippets and examples in the book, followed by an introduction to JUnit 5 for unit testing and verifying solutions, while the final appendix explains O-notation for estimating performance. After reading this book, you'll be prepared to take the next step in your career or tackle your next personal project. All source code is freely available for download via the Apress website. What You Will Learn Improve your Java knowledge by solving enjoyable but challenging programming puzzles Solve mathematical problems, recursions, strings, arrays and more Manage data processing and data structures like lists, sets, maps Handle advanced recursion as well as binary trees, sorting and searching Gamify key fundamentals for fun and easier reinforcement Who This Book Is For Professional software developers, makers, as well as computer science teachers and students. At least some prior experience with Java programming is recommended.
| Author | : David Kopec |
| Publisher | : Simon and Schuster |
| Total Pages | : 262 |
| Release | : 2020-12-21 |
| Genre | : Computers |
| ISBN | : 1638356548 |
Sharpen your coding skills by exploring established computer science problems! Classic Computer Science Problems in Java challenges you with time-tested scenarios and algorithms. Summary Sharpen your coding skills by exploring established computer science problems! Classic Computer Science Problems in Java challenges you with time-tested scenarios and algorithms. You’ll work through a series of exercises based in computer science fundamentals that are designed to improve your software development abilities, improve your understanding of artificial intelligence, and even prepare you to ace an interview. As you work through examples in search, clustering, graphs, and more, you'll remember important things you've forgotten and discover classic solutions to your "new" problems! Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the technology Whatever software development problem you’re facing, odds are someone has already uncovered a solution. This book collects the most useful solutions devised, guiding you through a variety of challenges and tried-and-true problem-solving techniques. The principles and algorithms presented here are guaranteed to save you countless hours in project after project. About the book Classic Computer Science Problems in Java is a master class in computer programming designed around 55 exercises that have been used in computer science classrooms for years. You’ll work through hands-on examples as you explore core algorithms, constraint problems, AI applications, and much more. What's inside Recursion, memoization, and bit manipulation Search, graph, and genetic algorithms Constraint-satisfaction problems K-means clustering, neural networks, and adversarial search About the reader For intermediate Java programmers. About the author David Kopec is an assistant professor of Computer Science and Innovation at Champlain College in Burlington, Vermont. Table of Contents 1 Small problems 2 Search problems 3 Constraint-satisfaction problems 4 Graph problems 5 Genetic algorithms 6 K-means clustering 7 Fairly simple neural networks 8 Adversarial search 9 Miscellaneous problems 10 Interview with Brian Goetz
| Author | : Steven S Skiena |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 376 |
| Release | : 2006-04-18 |
| Genre | : Computers |
| ISBN | : 038722081X |
There are many distinct pleasures associated with computer programming. Craftsmanship has its quiet rewards, the satisfaction that comes from building a useful object and making it work. Excitement arrives with the flash of insight that cracks a previously intractable problem. The spiritual quest for elegance can turn the hacker into an artist. There are pleasures in parsimony, in squeezing the last drop of performance out of clever algorithms and tight coding. The games, puzzles, and challenges of problems from international programming competitions are a great way to experience these pleasures while improving your algorithmic and coding skills. This book contains over 100 problems that have appeared in previous programming contests, along with discussions of the theory and ideas necessary to attack them. Instant online grading for all of these problems is available from two WWW robot judging sites. Combining this book with a judge gives an exciting new way to challenge and improve your programming skills. This book can be used for self-study, for teaching innovative courses in algorithms and programming, and in training for international competition. The problems in this book have been selected from over 1,000 programming problems at the Universidad de Valladolid online judge. The judge has ruled on well over one million submissions from 27,000 registered users around the world to date. We have taken only the best of the best, the most fun, exciting, and interesting problems available.
| Author | : Anghel Leonard |
| Publisher | : Packt Publishing Ltd |
| Total Pages | : 809 |
| Release | : 2019-09-20 |
| Genre | : Computers |
| ISBN | : 1789800501 |
Develop your coding skills by exploring Java concepts and techniques such as Strings, Objects and Types, Data Structures and Algorithms, Concurrency, and Functional programming Key FeaturesSolve Java programming challenges and get interview-ready by using the power of modern Java 11Test your Java skills using language features, algorithms, data structures, and design patternsExplore areas such as web development, mobile development, and GUI programmingBook Description The super-fast evolution of the JDK between versions 8 and 12 has increased the learning curve of modern Java, therefore has increased the time needed for placing developers in the Plateau of Productivity. Its new features and concepts can be adopted to solve a variety of modern-day problems. This book enables you to adopt an objective approach to common problems by explaining the correct practices and decisions with respect to complexity, performance, readability, and more. Java Coding Problems will help you complete your daily tasks and meet deadlines. You can count on the 300+ applications containing 1,000+ examples in this book to cover the common and fundamental areas of interest: strings, numbers, arrays, collections, data structures, date and time, immutability, type inference, Optional, Java I/O, Java Reflection, functional programming, concurrency and the HTTP Client API. Put your skills on steroids with problems that have been carefully crafted to highlight and cover the core knowledge that is accessed in daily work. In other words (no matter if your task is easy, medium or complex) having this knowledge under your tool belt is a must, not an option. By the end of this book, you will have gained a strong understanding of Java concepts and have the confidence to develop and choose the right solutions to your problems. What you will learnAdopt the latest JDK 11 and JDK 12 features in your applicationsSolve cutting-edge problems relating to collections and data structuresGet to grips with functional-style programming using lambdasPerform asynchronous communication and parallel data processingSolve strings and number problems using the latest Java APIsBecome familiar with different aspects of object immutability in JavaImplement the correct practices and clean code techniquesWho this book is for If you are a Java developer who wants to level-up by solving real-world problems, then this book is for you. Working knowledge of Java is required to get the most out of this book.
| Author | : Moises Gamio |
| Publisher | : |
| Total Pages | : 59 |
| Release | : 2020-04-24 |
| Genre | : |
| ISBN | : |
This book covers the most frequent challenge codes included in the final stage of your job interview. The interviewer is looking to evaluate your Problem-solving skills, how you react when faced with unknown problem e.g design an algorithm to solve a problem you haven't seen before. This book is an additional reference so that you can be as prepared as possible.Data structures organize data that algorithms work upon. We follow the following steps to develop a usable algorithm:- Model the problem, identifying the elements of the problem, ending in an abstract data type.- Find an algorithm to solve it, defining the data structures, data types and a sequence of steps algorithms need to do.- Is the algorithm enough fast and fit in memory? Here we must refactor the algorithm possibly changing the data structures and the sequence of steps.- Iterating until we are satisfied.By the end of reading this book, you'll be able to:- understand the basics of common data structures and algorithms and apply them to real questions.- understand the importance of modules, readable variables, hashing, recursion, queues, stacks, and much more.- face with unknown problems better than other candidates.
| Author | : Anghel Leonard |
| Publisher | : |
| Total Pages | : 816 |
| Release | : 2019-09-20 |
| Genre | : Computers |
| ISBN | : 9781789801415 |
Develop your coding skills by exploring Java concepts and techniques such as Strings, Objects and Types, Data Structures and Algorithms, Concurrency, and Functional programming Key Features Solve Java programming challenges and get interview-ready by using the power of modern Java 11 Test your Java skills using language features, algorithms, data structures, and design patterns Explore areas such as web development, mobile development, and GUI programming Book Description The super-fast evolution of the JDK between versions 8 and 12 has increased the learning curve of modern Java, therefore has increased the time needed for placing developers in the Plateau of Productivity. Its new features and concepts can be adopted to solve a variety of modern-day problems. This book enables you to adopt an objective approach to common problems by explaining the correct practices and decisions with respect to complexity, performance, readability, and more. Java Coding Problems will help you complete your daily tasks and meet deadlines. You can count on the 300+ applications containing 1,000+ examples in this book to cover the common and fundamental areas of interest: strings, numbers, arrays, collections, data structures, date and time, immutability, type inference, Optional, Java I/O, Java Reflection, functional programming, concurrency and the HTTP Client API. Put your skills on steroids with problems that have been carefully crafted to highlight and cover the core knowledge that is accessed in daily work. In other words (no matter if your task is easy, medium or complex) having this knowledge under your tool belt is a must, not an option. By the end of this book, you will have gained a strong understanding of Java concepts and have the confidence to develop and choose the right solutions to your problems. What you will learn Adopt the latest JDK 11 and JDK 12 features in your applications Solve cutting-edge problems relating to collections and data structures Get to grips with functional-style programming using lambdas Perform asynchronous communication and parallel data processing Solve strings and number problems using the latest Java APIs Become familiar with different aspects of object immutability in Java Implement the correct practices and clean code techniques Who this book is for If you are a Java developer who wants to level-up by solving real-world problems, then this book is for you. Working knowledge of Java is required to get the most out of this book.
| Author | : Anghel Leonard |
| Publisher | : Packt Publishing Ltd |
| Total Pages | : 788 |
| Release | : 2020-08-28 |
| Genre | : Computers |
| ISBN | : 1839219173 |
Explore a wide variety of popular interview questions and learn various techniques for breaking down tricky bits of code and algorithms into manageable chunks Key FeaturesDiscover over 200 coding interview problems and their solutions to help you secure a job as a Java developerWork on overcoming coding challenges faced in a wide array of topics such as time complexity, OOP, and recursionGet to grips with the nuances of writing good code with the help of step-by-step coding solutionsBook Description Java is one of the most sought-after programming languages in the job market, but cracking the coding interview in this challenging economy might not be easy. This comprehensive guide will help you to tackle various challenges faced in a coding job interview and avoid common interview mistakes, and will ultimately guide you toward landing your job as a Java developer. This book contains two crucial elements of coding interviews - a brief section that will take you through non-technical interview questions, while the more comprehensive part covers over 200 coding interview problems along with their hands-on solutions. This book will help you to develop skills in data structures and algorithms, which technical interviewers look for in a candidate, by solving various problems based on these topics covering a wide range of concepts such as arrays, strings, maps, linked lists, sorting, and searching. You'll find out how to approach a coding interview problem in a structured way that produces faster results. Toward the final chapters, you'll learn to solve tricky questions about concurrency, functional programming, and system scalability. By the end of this book, you'll have learned how to solve Java coding problems commonly used in interviews, and will have developed the confidence to secure your Java-centric dream job. What you will learnSolve the most popular Java coding problems efficientlyTackle challenging algorithms that will help you develop robust and fast logicPractice answering commonly asked non-technical interview questions that can make the difference between a pass and a failGet an overall picture of prospective employers' expectations from a Java developerSolve various concurrent programming, functional programming, and unit testing problemsWho this book is for This book is for students, programmers, and employees who want to be invited to and pass interviews given by top companies. The book assumes high school mathematics and basic programming knowledge.
| Author | : Mayur Ramgir |
| Publisher | : Packt Publishing Ltd |
| Total Pages | : 391 |
| Release | : 2017-11-01 |
| Genre | : Computers |
| ISBN | : 1787122301 |
Best practices to adapt and bottlenecks to avoid About This Book Tackle all kinds of performance-related issues and streamline your development Master the new features and new APIs of Java 9 to implement highly efficient and reliable codes Gain an in-depth knowledge of Java application performance and obtain best results from performance testing Who This Book Is For This book is for Java developers who would like to build reliable and high-performance applications. Prior Java programming knowledge is assumed. What You Will Learn Work with JIT compilers Understand the usage of profiling tools Generate JSON with code examples Leverage the command-line tools to speed up application development Build microservices in Java 9 Explore the use of APIs to improve application code Speed up your application with reactive programming and concurrency In Detail Finally, a book that focuses on the practicalities rather than theory of Java application performance tuning. This book will be your one-stop guide to optimize the performance of your Java applications. We will begin by understanding the new features and APIs of Java 9. You will then be taught the practicalities of Java application performance tuning, how to make the best use of garbage collector, and find out how to optimize code with microbenchmarking. Moving ahead, you will be introduced to multithreading and learning about concurrent programming with Java 9 to build highly concurrent and efficient applications. You will learn how to fine tune your Java code for best results. You will discover techniques on how to benchmark performance and reduce various bottlenecks in your applications. We'll also cover best practices of Java programming that will help you improve the quality of your codebase. By the end of the book, you will be armed with the knowledge to build and deploy efficient, scalable, and concurrent applications in Java. Style and approach This step-by-step guide provides real-world examples to give you a hands-on experience.
| Author | : Infinite Paths Publication |
| Publisher | : Infinite Paths |
| Total Pages | : 266 |
| Release | : 2020-05-16 |
| Genre | : Computers |
| ISBN | : |
Our Architect Team has created this Book with Great care and most of the latest technologies are covered One can learn from the questions itself as they are well detailed. THESE CHALLENGES ARE NOT A COLLECTION OF REGULAR INTERVIEW QUESTIONS SCRAPPED FROM WEB Interview Questions from the below Topics. 1. BlockChain 2. Microservices 3. Docker 4. Kubernetes 5. Reactive 6. Spring Boot 7. Apachespark 8. AI-ML-DL 9. JHipster 10. Advanced JDBC 11. Mysql 12. JShell 13. Appium 14. Elastic search 15. Mockito 16. PowerMock 17. Regex 18. MongoDB 19. SQL 20. Redis 21. Generic 22. JDK 23. Scrum – Agile 24. Quantum 25. Serverless 26. Security 27. Android 28. Selenium 29. JWT 30. Hacking 31. Capacity Planning 32. Postman 33. Progressive 34. BDD 35. Swagger 36. Jmeter 37. Logging 38. Concurrency 39. Linux 40. RasperryPI 41. Arduino 42. Terms 43. Charts 44. Tomcat 45. Kotlin 46. Architectures 47. Hibernate 48. GIT 49. Web Development 50. Softwares and Libraries 51. AWS 52. AZURE Functions 53. Maven 54. HyperLedger 55. HTTP/2 56. WireShark 57. IOT 58. ELK 59. Graffana 60. Wildfly 61. Software Design 62. Jenkins 63. SonarQube 64. Patterns AntiPatterns 65. Famous and Useful Softwares 66. FAAS 67. Quartz
| Author | : Kathy Sierra |
| Publisher | : "O'Reilly Media, Inc." |
| Total Pages | : 720 |
| Release | : 2005-02-09 |
| Genre | : Computers |
| ISBN | : 1449331440 |
Learning a complex new language is no easy task especially when it s an object-oriented computer programming language like Java. You might think the problem is your brain. It seems to have a mind of its own, a mind that doesn't always want to take in the dry, technical stuff you're forced to study. The fact is your brain craves novelty. It's constantly searching, scanning, waiting for something unusual to happen. After all, that's the way it was built to help you stay alive. It takes all the routine, ordinary, dull stuff and filters it to the background so it won't interfere with your brain's real work--recording things that matter. How does your brain know what matters? It's like the creators of the Head First approach say, suppose you're out for a hike and a tiger jumps in front of you, what happens in your brain? Neurons fire. Emotions crank up. Chemicals surge. That's how your brain knows. And that's how your brain will learn Java. Head First Java combines puzzles, strong visuals, mysteries, and soul-searching interviews with famous Java objects to engage you in many different ways. It's fast, it's fun, and it's effective. And, despite its playful appearance, Head First Java is serious stuff: a complete introduction to object-oriented programming and Java. You'll learn everything from the fundamentals to advanced topics, including threads, network sockets, and distributed programming with RMI. And the new. second edition focuses on Java 5.0, the latest version of the Java language and development platform. Because Java 5.0 is a major update to the platform, with deep, code-level changes, even more careful study and implementation is required. So learning the Head First way is more important than ever. If you've read a Head First book, you know what to expect--a visually rich format designed for the way your brain works. If you haven't, you're in for a treat. You'll see why people say it's unlike any other Java book you've ever read. By exploiting how your brain works, Head First Java compresses the time it takes to learn and retain--complex information. Its unique approach not only shows you what you need to know about Java syntax, it teaches you to think like a Java programmer. If you want to be bored, buy some other book. But if you want to understand Java, this book's for you.
