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Java_ Process control Branching structure if The code that executes a branch is determined according to the result of the determination (true or false) if() { doSomething1(); } if() { doSomething1(); }else { doSomething2(); } if() { doSomething1(); }else if() { doSomething2(); }...{ doSomething3(); }else { doSomething4(); } Executi ...

Our ultimate goal is to be lazy. Working together is to see you work hard, and I am lazy to enjoy. Therefore, in order to be lazy, frame programming is inevitable. In my blog in the future, I hope everyone is frame programming. Those who are irregular should be serious and diligent. We are too lazy to be worthy of you. joy:, remember that we ar ...

1 Introduction If you often use Kubernetes, you must have the need to customize the resource list file. However, it seems that everyone likes to use helm. Helm is easy to use, but it also has many disadvantages. For example, you need a tiller server, which requires ultra-high permissions. Most importantly, if you want to make a Helm C ...

Question: Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Input: Output: 1 Example 2: Input: Output: 7 Note: You may assume the tree (i.e., the given root node) is not NULL. General idea: Give a binary tree and find the leftmost node value in the bottom row of the tree. Example ...

preface This paper describes several array traversal methods commonly used in JS and performance analysis and comparison. If this article helps you, ❤️ Follow + like ❤️ Encourage the author, the official account and the first time to get the latest articles. Array method JavaScript has provided many array methods up to now. The following figur ...

preface The company recently switched from Mysql to CockroachDB, so some problems encountered during this period are recorded here 1 development environment CockroachDB version V20.2.3 maven needs to introduce dependencies <dependency> <groupId>org.postgresql</groupId> <artifactId>postgresql</artifact ...

The table.sql file used for testing was uploaded to my resource library... If you want to use it, you can use the following three tables for testing only. The specific contents of each table are as follows: Department table Area table Employee table There are too many specific contents. Some contents are displayed here 1. Basic quer ...

preface The following is the explanation of the pointer from the definition, focusing on practice, with exquisite bushi small pictures. If you also find the pointer difficult, learn it with SThree~~ My skills are not high, so the explanation is very easy to understand~~ If you have any doubts or I am wrong, you are welcome to point out!!! ...

preparationYou need to install the development environment of fluent: you can take a look at the previous tutorial: 1. Installation tutorial of fluent development environment of win system: https://www.jianshu.com/p/152447bc8718 2. MAC system fluent development environment installation tutorial: https://www.jianshu.com/p/bad2c35b41e3Third par ...

sort 1. Concept of sorting Sorting: the so-called sorting is the operation of arranging a string of records incrementally or decrementally according to the size of one or some keywords. Stability: if there are multiple records with the same keyword in the record sequence to be sorted, the relative order of these records remains unchanged aft ...