Programmer Think

Author Ma Chao Produced by | CSDN (ID: CSDNnews) With the ups and downs of traffic in the Internet era, many technology giants have also failed in the face of the impact of traffic. XXX broke down and the news search continues. With the automatic elasticity of rapid expansion, Serverless can calmly deal with similar impacts, which also makes ...

AOP introduction: dynamic agent Before introducing AOP, let's introduce the knowledge of dynamic agent Let's give you a simple example. Now we have the following user interface and its implementation class (for convenience, only the corresponding statements are printed in the implementation class) package com.zy.service; public interface us ...

Overview of t rust error handling Reliability of t rust: error handling In most cases: an error is prompted at compile time Wrong classification recoverable For example, if the file is not found, try again Unrecoverable bug, for example, the index accessed is out of range T rust has no exception like mechanism Recovera ...

brief introduction Java 7 introduces a new reusable synchronization barrier, Phaser phaser, which is similar to CyclicBarrier and CountDownLatch, but more powerful. CyclicBarrier solves the problem that CountDownLatch cannot be reused, but it still has the following shortcomings: 1) The counter value cannot be dynamically adjusted. If the nu ...

scene Because when working, you don't over-consider the issue of high concurrency. Most collections use normal lists, sets, maps. There's not much problem either. But if you're in a multi-threaded scenario where multiple threads are manipulating a collection at the same time, there's a lot of problem. Collection Security Issue Code Display L ...