Detailed introduction and usage summary of G1 in java

CSS3 vw unit Paste_Image.png100vw = 100% window width 100vh = 100% window height. It will be quite simple to implement an adaptive square (a container with a fixed aspect ratio)! [lang=stylus] .box width 10vw Since height 10vw is a new unit, there will inevitably be compatibility issues.[lang=jade] .img-box img(src="img/a.png")[lang=stylus] .img-box width 10vw height 10vw img width 100% &n

1. Detailed explanation of the new unit (vw) in css3

Introduction: CSS3vw unit PasteImage.png100vw=100% window width 100vh=100% window height. It will be quite simple to implement an adaptive square (container with fixed aspect ratio)! [lang=stylus].boxwidth10vwheight10vw Since it is new Unit, there will inevitably be compatibility issues.[lang=jade].imgboximg(src="img/a.png")[lang=stylus].imgboxwidt...

2. Analysis of Java G1 Garbage Collector

Introduction: This article first briefly introduces garbage collection Common methods, then analyze the collection principle of G1 collector, its advantages compared with other garbage collectors, and finally give some tuning practices. 1. What is garbage collection? First of all, in...

3. Compare Java data types and MySql data types

# Introduction: This article describes the comparison table between Java data types and MySql data types. Share it with everyone for your reference, as follows: Type name display length database type JAVA type JDBC type index (int) VARCHARL+NVARCHARjava.lang.String12CHARNCHARjava.lang.String1BLOBL+NBLOBjava.lang.byte[]-4TEXT65535VARCHARjava.lang.String- 1INTEGER4INTE

4. Code sharing of some key technologies of Java Hotspot G1 GC (picture)

Introduction: G1 GC, full name Garbage-First Garbage Collector, is enabled through the -XX:+UseG1GC parameter. It is available as an experience version with the JDK 6u14 version and is released in the JDK 7u4 version. It was officially launched at that time, and I believe that students who are familiar with JVM will not be unfamiliar with it. In JDK 9, G1 is proposed to be the default garbage collector (JEP 248). On the official website, G1 is described like this: The Garbage-First (G1) collector is a server-styl..

5. Float type addition, subtraction, multiplication and division in JS Sample code sharing

Introduction: //Floating point addition function FloatAdd(arg1,arg2){ var r1,r2,m; try{r1=arg1.toString().split(.)[1].length}catch(e){r1=0} try{r2=arg2.toString().split(.)[ 1].length}catch(e){r2=0} m=Math.pow(10,

6. Using Python common function instructions

Introduction: Basic customized C __init__(self[, arg1, ]) constructor (with some optional parameters) C __new__(self[, arg1, ]) constructor (with some optional parameters);

7. MySQL - Detailed explanation of reading and writing separation based on Amoeba (picture and text )

简介：今天，我们继续MySQL的话题，今天为大家带来一篇基于Amoeba实现MySQL读写分离的方案文章，好我们直接进入今天的正题吧。一、服务器规划主机名IP地址节点liuyazhuang152192.168.0.152amoebaliuyazhuang153192.168.0.153写库liuyazhuang154

8. C++ 中字符串的使用

简介：当我们一开始使用C语言来处理字符串的时候，会感觉非常的麻烦。C语言中缺少相应的字符串处理函数，如果想要实现某个字符串功能，只能靠我们自己来实现。但是当来到C++中，字符串的处理就会变得异常简单。今天我们就来学习一下C++中最高频的字符串处理函数。示例代码上传至：https://github.com/chenyufeng1991/CppString。

9. List排序

简介：package demo.main;    import java.util.Comparator;    public class PersonComparator implements Comparator