runtime

Java: Extending Class At Runtime

丶灬走出姿态 提交于 2019-11-29 02:54:29
问题 I have the capability to extend a class at compile time, but I need to be able to create an instance of this subclass at runtime using an instance of the superclass that was already instantiated. This should be possible in theory because superclass constructors are already called before the subclass constructor. I do not have access to the program sufficiently to change the instantiation to my subclass nor to interrupt the original instantiation. Use Case: There is an existing array of

Load NuGet dependencies at runtime

谁说胖子不能爱 提交于 2019-11-29 02:33:03
问题 I'm looking for a way to run code by executing the following steps: Receiving a list of NuGet packages (a list of tuples ("package name", "package version", "path to main class"). Retrieving them in a local directory (cf code sample #1) Loading them in my program at run-time Running the main classes by introspection (cf code sample #2) By now I am struggling with the third step. I can't find out how to load my package at run-time. My main question are: How can I find out in which folders were

C++ runtime type switching (avoiding switch)

心已入冬 提交于 2019-11-29 02:23:51
I've been into C++ for some years but I have not found yet the solution to a problem I constantly have. Know how to solve it would be awesome. What I have at the moment is: // Client code: switch(currentEnumValue) { case MyEnum::kValue01: processData<MyEnum::kValue01>(data); break; case MyEnum::kValue02: processData<MyEnum::kValue02>(data); break; default: LOG("Invalid command"); break; } // Declarations enum class MyEnum {kValue01, kValue02}; class MyClass { // code template <MyEnum> void processData(char*); /* Implemented somewhere else */ } template <> void MyClass::processData<MyEnum:

Is there a way to compile / load fxml files faster and only one time, and not at every restart of an application?

匆匆过客 提交于 2019-11-29 02:19:01
I have a program which loads many fxml files when executed. The application will be finished in a short time, and loading the application just takes too long. There are many fxml files (20+) and all these fxml files are loaded with Java code. There will be a point that the application is finished and ready for use, but all files will be loaded with every execution of the program. Can the fxml files only be compiled once, because they won't be changed when finished? The java code will of course be compiled once, it's only the fxml files. The application now takes 25 seconds to start, with 14

centos 安装JAVA 三种方法

左心房为你撑大大i 提交于 2019-11-29 02:11:15
由于各Linux开发厂商的不同,因此不同开发厂商的Linux版本操作细节也不一样,今天就来说一下 CentOS 下JDK的安装: 方法一:手动解压JDK的压缩包,然后设置环境变量 1.在/usr/目录下创建java目录 [root @localhost ~]# mkdir/usr/java [root @localhost ~]# cd /usr/java 2.下载jdk,然后解压 [root @localhost java]# curl -O http://download. Oracle .com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz [root @localhost java]# tar -zxvf jdk-7u79-linux-x64.tar.gz 3.设置环境变量 [root @localhost java]# vi /etc/profile 在profile中添加如下内容: #set java environment JAVA_HOME=/usr/java/jdk1.7.0_79 JRE_HOME=/usr/java/jdk1.7.0_79/jre CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib PATH=

An unhandled exception of type 'System.IO.FileNotFoundException' occurred in Unknown Module

空扰寡人 提交于 2019-11-29 02:03:04
I am developing a c# application and I get the following error at debug runtime: An unhandled exception of type 'System.IO.FileNotFoundException' occurred in Unknown Module. Additional information: Could not load file or assembly 'Autodesk.Navisworks.Timeliner.dll' or one of its dependencies. The specified module could not be found. Autodesk.Navisworks.Timeliner.dll is in the debug folder of the application. I have repaired the .net framework (version 4) but it did not resolve it. Any ideas on how to resolve this issue? Thanks. Andrew Shepherd First check - is the working directory the

Update label location in C#?

僤鯓⒐⒋嵵緔 提交于 2019-11-29 01:36:21
I have a method that returns a value, and I want this value to be the new location of a label in a windows form application. but I'm being told that a label's location is not a variable. objectA is the name of the label. objectA.Location.X = (int)A.position; objectA.Refresh(); how do I do this? Use the Left property to change X coordinate of a Label objectA.Left = 100; the Location property is of type Point, which is a value type. Therefore, the property returns a copy of the location value, so setting X on this copy would have no effect on the label. The compiler sees that and generates an

JVM学习笔记之JDK、JRE、JVM的关系(二)

我怕爱的太早我们不能终老 提交于 2019-11-29 00:58:56
  JDK(Java Development Kit)是针对Java开发员的产品,是整个Java的核心,包括了Java运行环境JRE、Java工具和Java基础类库。Java Runtime Environment(JRE)是运行JAVA程序所必须的环境的集合,包含JVM标准实现及Java核心类库。JVM是Java Virtual Machine(Java虚拟机)的缩写,是整个java实现跨平台的最核心的部分,能够运行以Java语言写作的软件程序。        在计算机开发语言的历史中,从来没有哪种语言象Java那样受到如此众多厂商的支持,有如此多的开发工具。      JDK(Java Development Kit)   JDK是Java开发工具包,是Sun Microsystems针对Java开发员的产品。   JDK中包含JRE,在JDK的安装目录下有一个名为jre的目录,里面有两个文件夹bin和lib,在这里可以认为bin里的就是jvm,lib中则是jvm工作所需要的类库,而jvm和 lib和起来就称为jre。   JDK是整个JAVA的核心,包括了Java运行环境JRE(Java Runtime Envirnment)、一堆Java工具(javac/java/jdb等)和Java基础的类库(即Java API 包括rt.jar)。   ①SE(J2SE)

runtime+compiler与runtime-only

自古美人都是妖i 提交于 2019-11-29 00:49:08
如图runtime+compiler与runtime-only项目中的main.js文件下在创建vue实例时的区别: 1、runtime+compiler:template--解析为ast(抽象语法树)--利用compiler转换为render函数--经过一系列的过程转为虚拟DOM --真实DOM,渲染到页面 2、runtime-only:render--visal dom--UI 结论:runtime-only优点:性能更高;体积更小(代码量更少) 这就是为什么初始化时有如下提示: 来源: https://www.cnblogs.com/qqinhappyhappy/p/11437250.html

Runtime.getRuntime().availableProcessors()

早过忘川 提交于 2019-11-29 00:36:09
问题 I am trying to check the performance of a program. I refer this post get OS-level system information. When Runtime.availableProcessors() executes, I get an answer of 4 . I read availableProcessors() but it tells that this method returns number of processors Can anyone explain what is mean by number of processors ? Why am getting 4 as result ? I am using Windows 7 core i5 4gp. 回答1: The number of processors is basically the number of execution engines capable of running your code. One of the i5