runtime

How does one access a method from an external jar at runtime?

由 半腔热情 提交于 2019-12-19 07:27:37
问题 This is a continuation of the question posted in: How to load a jar file at runtime I am uncertain as to how to continue to the method invocation level. From my understanding, from the clazz object, I would used getMethod or getDeclaredMethod to get a Method object from which I would call invoke. Of course, invoke requires an instance. Would that then be what is called doRun in the example code? Do I need to perform the doRun.run() method call even though I want to execute a different method

delphi exe and dll without build with runtime packages

由 ▼魔方 西西 提交于 2019-12-19 04:55:10
问题 For my last project i was using many frames in my delphi application ,so i dicided to create dlls and put them inside the dlls(ALL created in Delphi) i have gone through many websites and came up with the code that works but for that example i have to compile both apps and dlls with build with runtime packages which means i have to distribute the bpls also. and if dont check build with runtime packages error is coming this is the code i found in exe procedure TForm1.Button1Click(Sender:

efficient looping logistic regression in R

由 你离开我真会死。 提交于 2019-12-19 04:08:35
问题 I'm trying to run multiple logistic regression analyses for each of ~400k predictor variables. I would like to capture the outputs of each run into a row/column of an output table. My data organised in two parts. I have a 400000 x 189 double matrix ( mydatamatrix ) that contains the observations/data for each of my 400000 predictor variables measured in 189 individuals ( P1 ). I also have a second 189 x 20 data frame ( mydataframe ) containing the outcome variable and another predictor

Fortran dynamic libraries, load at runtime?

由 ℡╲_俬逩灬. 提交于 2019-12-19 03:59:10
问题 Is it possible to have a Fortran program load a Fortran library at run time? If so, would it be possible to modify a function and recompile only the library to have the originally-compiled program call the modified function in the library at run time? If anyone can provide a minimal working example of how this could be achieved that would be great. 回答1: Here are some few links that can be helpfull: This page on rosettacode.org which gives complete example with details and discuss

Android, Logcat gives error about SearchView class

由 限于喜欢 提交于 2019-12-19 03:44:23
问题 i have installed the support library to get the action bar worked also in android pre API 11 When i start the application, the logcat give this error: 08-20 19:54:41.600: I/dalvikvm(9828): Failed resolving Landroid/support/v7/widget/SearchView$5; interface 809 'Landroid/view/View$OnLayoutChangeListener;' 08-20 19:54:41.600: W/dalvikvm(9828): Link of class 'Landroid/support/v7/widget/SearchView$5;' failed 08-20 19:54:41.600: E/dalvikvm(9828): Could not find class 'android.support.v7.widget

JavaSE---Runtime类

由 我们两清 提交于 2019-12-19 03:42:08
1、概述 　　　　1.1　　 Runtime类 代表 java程序 运行时环境 ； 　　　　1.2　　 Runtime类 提供的类方法： 　　　　　　　　　　 getRuntime() ：获取Runtime实例；　　 　　　　　　　　　　 gc() ：通知垃圾回收器回收资源； 　　　　　　　　　　 availableProcessors() ：处理器数量； 　　　　　　　　　　 freeMemory() ：可用内存大小； 　　　　　　　　　　 maxMemory() ：最大内存大小； 　　　　　　　　　　 totalMemory() ：总内存大小； 　　　　　　　　　　 exec() ： 执行操作系统命令； public class TestRuntime { public static void main(String[] args)throws Exception{ Runtime runtime=Runtime.getRuntime(); //获取运行时环境参数 System.out.println("处理器数量："+runtime.availableProcessors()); System.out.println("可用内存空间："+runtime.freeMemory()); System.out.println("最大内存空间:"+runtime.maxMemory(

Get output of terminal command using Java

由 廉价感情. 提交于 2019-12-19 03:22:48
问题 For some terminal commands, they repeatedly output. For example, for something that's generating a file, it may output the percent that it is complete. I know how to call terminal commands in Java using Process p = Runtime.getRuntim().exec("command goes here"); but that doesn't give me a live feed of the current output of the command. How can I do this so that I can do a System.out.println() every 100 milliseconds, for example, to see what the most recent output of the process was. 回答1: You

sizeof(value) vs sizeof(type)?

由 久未见 提交于 2019-12-18 17:28:05
问题 Considering : double data; double array[10]; std::vector<int> vec(4, 100); MyClass myclass; Is there a difference between : sizeof(double); sizeof(double[10]); sizeof(std::vector<int>); sizeof(MyClass); and sizeof(data); sizeof(array); sizeof(vec); sizeof(myclass); Are the two syntaxes different or strictly equivalent ? Are all of them evaluated at compile-time ? If not, which one is evaluated at run-time ? 回答1: The only differences are in syntax and convenience. Syntactically, you're allowed

How to swizzle a method of a private class

由 拟墨画扇 提交于 2019-12-18 15:39:13
问题 I have a private class (both declared & defined within .m) as an addition to an implementation of a different class, that happens to use that private class internally. I'd like to swizzle one of the methods of that private class. I defined a category and did the usual: +(void)load { Method original, swizzled; original = class_getInstanceMethod(objc_getClass("SomePrivateClass"), @selector(somePrivateMethod:)); swizzled = class_getInstanceMethod(self, @selector(swizzled_somePrivateMethod:));

How to determine main class at runtime in threaded java application?

由 ▼魔方 西西 提交于 2019-12-18 14:14:14
问题 I want to determine the class name where my application started, the one with the main() method, at runtime, but I'm in another thread and my stacktrace doesn't go all the way back to the original class. I've searched System properties and everything that ClassLoader has to offer and come up with nothing. Is this information just not available? Thanks. 回答1: See the comments on link given by Tom Hawtin. A solution is these days is (Oracle JVM only): public static String getMainClassAndArgs() {
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