Programmer Group

1, Producer consumer mode (there are only two threads, one is producer thread and the other is consumer thread) a key!!!!!!! When reading this blog, first describe the wait mechanism of the wait () method. When the first thread is waiting, it will release the lock. When the thread is awakened, it will continue to execute from the code behin ...

Multithreaded First: Basic concepts: program, process, thread Program: A program is a collection of instructions written in a language for a specific task. That is, a static piece of code, a static object. Process: A process is an execution process of a program, or a running program, and is a dynamic process: it has its own process of genera ...

Common exception classes 1 abnormal Poorly structured code cannot run, which is the basic concept of Java. The ideal time to find errors is at compile time. However, the compiler cannot find all the errors, and the remaining problems need to be solved when the program runs. This requires that the error can pass the appropriate information to ...

What is the method Methods in Java are similar to functions in the c language At Syem.out.println();in System is a class, out is an object, println() is a method Method is a collection of statements that together perform a functionMethods are contained in classes and objectsMethods are created in programs and referenced elsewhereNaming of ...

JavaSE advanced Lambda expressions, method references, Stream streams, File classes Chapter 1 new features of JDK8 New JDK features: Lambda expression Default method [learned] Stream API Method reference Base64 1.1 Lambda expression 1.1.1 overview of functional programming ideas In mathematics, a function is a set of calcu ...

preface After a lapse of two weeks, I once again wrote a Java practice case - "library management system", which is a simplified version of the library management system. It is estimated that it will be further developed after my own technology is improved. I don't think it will be long Previous case articles, interested p ...

1. Branch management 1.1 process control Process control statement classification Sequential structure The simplest and most basic control process is executed in sequence without specific syntax structureExecution sequence: start → statement A → statement B → statement C → endCode example public class OrderDemo { ...

Understanding and using Stream in Java Or some things encountered at work, because the foundation was not very good or the things used at work were relatively limited. So now I'm slowly making up for some of my previous knowledge blind spots. Maybe it's a relatively simple thing in everyone's opinion. In that sentence, blogs are mainly records ...

1, What is the interface My computer has a USB interface. When I want to use the wireless mouse, I just need to insert the USB connector of the wireless mouse into it, and the wireless mouse can be used; When I want to charge my mobile phone, I just need to insert the USB head of the charging cable into it, and the mobile phone starts char ...

Java network programming network model OSI reference model The network is divided into seven layers: application layer, presentation layer, session layer, transport layer, network layer, data link layer and physical layerTCP/IP reference model The network is divided into application layer, transport layer, Internet layer and host to network ...