java virtual

1. Run-time data areaThe Java Virtual machine divides the memory it manages into several different data regions during the execution of a Java program. These areas have their own uses, as well as the time of creation and destruction: Some regions exist with the start of a virtual machine process Some regio

1. What is a Java Virtual Machine?A Java virtual machine is an imaginary machine that is simulated by software on an actual computer. The Java Virtual Machine has its own hardware, such as the processor, stack, and register. It al

Java Virtual machine-virtual machine byte code execution engineAll Java Virtual machine execution engines are consistent: the input is a bytecode file, processing is the equivalent process of bytecode parsing, the output is the execution results.Run-time stack frame structur

hotspot Just-in-time compilers in virtual machines Recently in the Zhou Zhiming teacher's "in-depth understanding of the Java Virtual machine" This book, after looking at the feeling of a lot of harvest, so write a point of reading Summary it. First look at the following questions: 1, why hotspot Virtual Confidential

(Resource R1, Resource r2) {this.r1 = r1; THIS.R2 = R2; } @Override public void Run () {int j = 0; while (true) {synchronized (R2) {System.out.println ("the second thread got R2 ' s lock "+ j); Synchronized (R1) {System.out.println ("the second thread got R1 ' s lock" + j); }} j + +; } } }Open VISUALVM detected JVM process, we can see this tab is flashing, VISUALVM has detected my package under the deadlock class

I wrote my own book "deep understanding of memory management for Android virtual machines". I don't just write and play, but I have a deep understanding of Java virtual machines. Baidu Network Disk address: https://pan.baidu.com/s/1jI4xZgE I named it memory management for an in-depth understanding of Android virtual

This article is from the "in-depth understanding of Java Virtual Machine," a book, it is very recommended that you look at this book. Recently began to read this book, intends to open a series of related, to summarize the book's important points of knowledge. Uh, uh, well, that picture request framework is not urgent, because this request framework design content is relatively broad, the current spare time

Welcome to other blogs on this topic: Deep Dive into Java Virtual Machine (I)-detailed explanation of the underlying structure of Java Virtual Machine Deep Dive into Java Virtual Machine (II)-class lifecycle (I) class loading and

related to the memory area is these two pieces, the partition of Java memory area is actually far more complex than this. For Java programmers, with the help of the virtual machine automatic memory management mechanism, it is no longer necessary to pair the Delete/free code for each new operation, which is not prone to memory leaks and memory overflow problems.

Deep understanding of Java Virtual Machine-Chapter 10-early (compilation phase) optimization, deep understanding of virtual machines Chapter 2 early (compilation period) Optimization Javac compilation process: 1. parsing and filling the symbol table process Lexical and syntax analysis converts the source code to a Token set. For example, the code "int a = B

Speaking of Java, people first think of Java programming language. However, Java is actually a technology, which consists of four aspects: java programming language, Java file format, Java Vir