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preface Whether students or people who have worked, I think they all have the same dream: enter a big factory! Seeing that 2021 is half past, how can we overtake at the corner in the second half of the year and enter the dream factory First of all, you should know that now, whether large or small companies, the interview investigation is not ...

Original address: Some great interview questions [4] Recently, I interviewed some companies and got some offer s. I don't record concept questions, but only coding questions. In their spare time, they can do these problems and practice their hands. Graffiti intelligence will recruit a large number of people in 2021. There are vacancies i ...

preface *** The author writes a blog mainly to summarize the technology and deepen his understanding of it. If there are any mistakes, please help point out them. Singleton mode 1. Definitions Definition of Singleton pattern: a pattern in which a class has only one instance and the class can create the instance itself. 2. Features ...

preface In daily coding, with the support of ide, we rarely execute java XXX command directly on the command line to start a project. However, have we ever thought about what is done behind a simple java command? Let's look at the following simple questions 1. The Java command can be followed by many parameters. How are these parameters resol ...

Common properties and methods in List: /* List Common attributes and methods: Common attributes: length length reversed Flip isEmpty Is it empty isNotEmpty Is it not empty Common methods: add increase addAll Splice array indexOf Find the ...

background In the development process of using fluent in depth, we encountered serious business code coupling and poor code maintainability, such as mud. We need a unified application framework to get rid of the current development dilemma, which is also a virgin land vacant in the field of fluent. Fish Redux is an upper application framework ...

The new responsive mechanism adopts ProxyApi of ES6 and abandons object defineProperty() Problems in Vue2 bidirectional data binding About objects Vue cannot detect the addition or removal of properties. Because Vue will perform getter/setter conversion on the property when initializing the instance, the property must exist on the data obj ...

Concept: Keep alive is a built-in component of Vue. When it wraps dynamic components, it caches inactive component instances instead of destroying them. Similar to transition, keep alive is an abstract component: it does not render itself as a DOM element or appear in the parent component chain. effect: In the process of component switching, ...

Topic source Supplementary question 1 Sort odd ascending even descending linked list Title details This article is a supplement to the enterprise question bank CodeTop[1], summarizing those high-frequency interview questions that can not be found on Leetcode. Let's take a look at the original narration of several face scriptures In the linke ...

JUC is a part of my job that I don't use very much, but I often get asked about it in a helpless interview, so I'll learn about JUC today. JUC is all called Java. Util. The concurrent package is a toolkit for Java, so why is JUC a frequent question for interviews? Because JUC includes multithreading, atomicity, locks and other heavy content, i ...