Millions of reading bloggers on a certain platform went to interview Ali P7, but the interviewer screamed: they don’t understand technology at all
I went home with a hard liver for 60 days in angrily, and then I met Ali again and met the original interviewer! After easily winning Ali P7 to tell the truth, it was only with this document!
First declare:
This book covers more than 98% of high-frequency Java knowledge points in the written interview of programmers in the past 3 years. After you have read this book carefully, you will be able to choose from various companies’ offers.
A book in hand/work without worry
Remember the key point, the exam is to be taken, or this small partner who covers 98% of the high-frequency interview written test questions in the past 3 years can directly forward + follow the private message "(learning) for free!
Preface
The job search for programmers is always a hot spot in the current society, and there are many books on the job search for programmers on the market, such as "Programmer Code Interview Guide" (by Zuo Chengyun), "Sword Finger Offer" (by He Haitao), "Program "The Written Test Book of Interviews" (edited by He Hao), "The Book of Java Programmers Interview Written Test" (edited by He Hao), "The Beauty of Programming" ("The Beauty of Programming" group), "The Pearl of Programming" (written by Jon Bentley), etc. They are all about the basic knowledge, each has its own focus, and it reflects well in the market. However, there is currently no analysis and explanation on the interview written test for senior Java programmers. Many readers have reported to us that with the fierce competition in the job market, if you only master some simple knowledge of Java at the junior and intermediate levels, then Finding a job with a monthly salary of 8,000 is not a big problem, but it is basically difficult to get a higher position or salary. Nowadays, some Internet companies have higher and higher requirements for special offers. To be ahead of others, job applicants must have more in-depth knowledge than others.
In response to this situation, our creative team has carefully prepared and selected the real interview questions from the current top companies (including Microsoft, Google, Baidu, Tencent, Alibaba, 360, Xiaomi, etc.) from the massive interview written examination questions on the Internet. Select the most typical, most frequently tested, and most representative Java real questions among them, and at the same time classify the knowledge points of the real questions, so that the levels are clear, organized, and the answers are simple and clear, and finally compiled into a book . The selected real questions and writing techniques in this book have the following characteristics:
- First, the inspection rate is high . The knowledge points selected in this book are all common test points for Java programmer interview written examinations, including various high-frequency knowledge points in the current Java programmer interview written examination process, especially the analysis of high-level Java language characteristics is more detailed.
- Second, the industry is highly representative . The knowledge points selected in this book all come from top well-known companies. They are the vane of the industry and represent the high standards of the industry. Most of the knowledge points are moderately difficult and easy to use, and they have a very good degree of distinction. Many small and medium-sized enterprises copy all of them and are representative.
- Third, the answer is detailed . This book has very detailed answers to every knowledge point, teaching them how to fish while also teaching them how to fish. Not only does it provide answers, but it also tells readers how to answer when they encounter similar questions.
- Fourth, the classification is clear and organized. This book summarizes and categorizes each knowledge point. This way of writing is helpful for readers to achieve a targeted and focused grasp of individual actual situations.
- Fifth, explain in depth . For most of the knowledge points, not only the usage of this knowledge point is given, but more importantly, the underlying realization principle is given.
Chapter content
The first part of Java features
Although this book focuses on Java advanced features and its implementation principles, in the interview written examination process, the examination of basic knowledge is essential, so this part first introduces some basic Java features. The Java language itself is very basic and important features, including immutable classes, value passing and reference passing, object-oriented features, generics, and some new features of different versions of Java.
Chapter 1 Value the basics
Chapter 2 Revisiting Object Orientation
Chapter 3 Generics
Chapter 4 New Features of Ding AV A
The second part JDK internal realization principle analysis
Although the source code of the JDK will not be used in Java development, the source code of the JDK can help developers understand the internal implementation principles, so that they can do well in the development process and choose the most suitable class library.
Chapter 5 Collectior Framework
Chapter 6 JC Framework
Chapter 7 java io
The third part of JVM
JVM is the most core part of JRE, it is used to analyze and execute Java bytecode work. Although Java programmers can develop applications without needing to understand the operating principles of the JVM, knowledge of the JVM helps to understand Java more deeply and helps solve some more complex problems.
Chapter 8 Memory Allocation
Chapter 9 Code Execution
Chapter 10 Design Patterns
Because this "Java Senior Programmer Interview Written Exam Collection" contains too much content, there is no way to show it all! Friends who need to get this requirement or this high-frequency interview written test question covering 98% of the past 3 years can directly forward + follow private message (learning) to get it for free!
