Programmer Group

Exception capture 1. What is exception capture """ The program can continue to run if there is an exception in the process of program execution. Note: you don't need to use exception capture all the time. You should use it when you know that there may be an exception in a certain place and you don' ...

Ideas sharing Now there are two variables i,j. to calculate the result value of (i+j)*i/2, we can first find that each step of the calculation depends on the result of the previous step. For example, we have to add, then multiply, and then divide. It seems that we can't split it into parallel. This is ...

python multitasking process 1, First demo 2, Queue 3, Process Pool 4, Case: file copying 5, Summary 1, First demo Process: after a program runs, the resource used by code + is called process, which is the basic unit of non allocated resources of the operating system. Multitasking completed by t ...

catalog A line of code to realize the cardioid pattern Two lines of code to make special dynamic QR code Four lines of code generate exclusive word cloud: Draw polygonal lines in five lines of code: Ten lines of code to draw sunflower: Twenty lines of code to realize the game of Jingzi chess 2 ...

Playing with Stream in Java 8 By litesky Link: http://www.jianshu.com/p/11c925cdba50 I believe you have heard about Java8 Stream, but you may not be able to use it or you are not familiar with it. This article will take you to use it from scratch, step by step, and lead you to the peak of Stream. Operator What are operators? Operator is a k ...

Design pattern principle 1. Overview One object should have the least knowledge of other objects The closer the relationship between class and class, the greater the coupling degree Demeter principle is also known as the least known principle, that is, the less a class knows about its own dependent c ...

Balanced Tree and FHQ-Treap A balanced tree (i.e. a balanced binary search tree) is a series of metaphysical operations that keep the binary search tree (BST) in a more balanced state and prevent it from degenerating under certain data (when BST has monotonic insertion values, the tree is unbalanced and degenerates into \(\mathcal{O}(n)\) once ...

1, Pod life cycle • Pod can contain multiple containers in which applications run, and can also have one or more Multiple Init containers started before the application container. The Init container is very similar to ordinary containers except for the following two points: • they always run t ...

Article catalog 1, Evaluation 1. EvaluationContext 2. Configuration 2, Use 1. Based on XML 2. Based on annotation 3, Grammar 1. Text 2. Property, array, set 3. In line List 4. In line Maps 5. Array constructor 6. Method 7. Operator 8. Type 9. Constructor 10. Variables 11. Functions 12. Bean refe ...

Write before: Why write this article, I began to understand these three quantities very hard, gnawed for a long time "Modern Operating System", also read a lot of blogs, and finally a little experience.This article is based on that brick book and some blogs, with a personal summary and underst ...