runtime

Get Java Runtime Process running in background

偶尔善良 提交于 2019-12-21 21:47:49
问题 I'm writing a java application where I require to run a process in background throughout the lifetime of the running application. Here's what I have: Runtime.getRuntime().exec("..(this works ok).."); Process p = Runtime.getRuntime().exec("..(this works ok).."); InputStream is = p.getInputStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); So, basically I print out every br.readLine() . The thing that I'm not sure about is how to implement

Execute a method from a form created by class reference (Delphi)

痞子三分冷 提交于 2019-12-21 21:35:47
问题 I have a form (form2) and I implemented the following PUBLIC method: function ShowInterface(i:integer):boolean; This form is in a package that will be DYNAMIC LOADED. Now I want to instantiate this form (form2) and execute the method above. Important: I can't reference form2's unit in form1. I tryed this code, but it never finds "ShowInterface" pointer (returns nil). procedure TfrmForm1.Button1Click(Sender: TObject); var PackageModule: HModule; AClass: TPersistentClass; ShowInterface:

Recursively change system property at runtime in java

随声附和 提交于 2019-12-21 21:25:14
问题 I am having a question and searching for an example for changing system property at runtime in java. In other words , I am having a standalone library which will load System.setProperty("javax.net.ssl.trustStore", trustStorePath) where the value of trustStorePath will change according to condition. If condition changes then I need to change the value of trustStorePath and need to set System Property. But the story is when I set the value for very first time, it stores the value and use it

Tetranacci Numbers in Log(n)

偶尔善良 提交于 2019-12-21 18:45:48
问题 I have stumbled upon a problem, which requires me to calculate the nth Tetranacci Number in O(log n). I have seen several solutions for doing this for Fibonacci Numbers I was looking to follow a similar procedure (Matrix Multiplication/Fast Doubling) to achieve this, but I am not sure how to do it exactly (take a 4 by 4 matrix and 1 by 4 in a similar fashion doesn't seem to work). With dynamic programming/general loops/any other basic idea, I am not able to achieve sub-linear runtime. Any

Tetranacci Numbers in Log(n)

自闭症网瘾萝莉.ら 提交于 2019-12-21 18:45:32
问题 I have stumbled upon a problem, which requires me to calculate the nth Tetranacci Number in O(log n). I have seen several solutions for doing this for Fibonacci Numbers I was looking to follow a similar procedure (Matrix Multiplication/Fast Doubling) to achieve this, but I am not sure how to do it exactly (take a 4 by 4 matrix and 1 by 4 in a similar fashion doesn't seem to work). With dynamic programming/general loops/any other basic idea, I am not able to achieve sub-linear runtime. Any

How to programatically set or clear the 32BIT flag?

霸气de小男生 提交于 2019-12-21 18:08:27
问题 When compiling, I always set it for Any CPU. However there are some customers that do not have a 64 bit version of a required binary, even when running on an x64 system. In these instances I have asked them to modify my binary with the corflags.exe /32BIT+ option: http://msdn.microsoft.com/en-us/library/ms164699(VS.80).aspx I would like to make this transparent and modify the binary myself during installation time if the 64 bit version is not present. I would prefer not to make a call to

How to disable runtime warnings in java?

孤者浪人 提交于 2019-12-21 17:44:17
问题 I am using a jar file in a java program and it generates warnings during runtime. But I don't want that my customer sees these warnings. How can I disable these warnings. The warning is as below: Sep 25, 2009 10:10:33 PM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify WARNING: Expected content type of 'application/javascript' or 'application/ecmascript' for remotely loaded JavaScript element at 'http://www.craigslist.org/js/jquery.js', but got 'application/x-javascript'. 回答1:

Runtime error handling in Swift

跟風遠走 提交于 2019-12-21 03:38:20
问题 I am fully aware that Swift doesn't have a try/catch mechanism to catch exceptions (OK, Swift 2.0 now supports them). I also understand that many API methods return a NSError that will be filled with an error object if something goes wrong. So please don't point me to this question: Error-Handling in Swift-Language But this still doesn't explain how to react to runtime errors in your own code, like array-out-of-bounds accesses or force-unwrapping an optional value that is nil. For example:

树莓派4安装net core3.0环境

£可爱£侵袭症+ 提交于 2019-12-20 22:40:48
树莓派4官方系统是32系统,所以需要安装arm32版本的net core sk和runtime 1,首先创建一个文件夹 dotnet-arm32 sudo mkdir dotnet arm32 2,下载sdk和runtime wget https://download.visualstudio.microsoft.com/download/pr/0b30374c-3d52-45ad-b4e5-9a39d0bf5bf0/deb17f7b32968b3a2186650711456152/dotnet-sdk-3.0.101-linux-arm.tar.gz wget https://download.visualstudio.microsoft.com/download/pr/57bf6ac3-1712-4b36-bfab-80b31d7ce21e/1ca71849902d73eb083bcc2c2f4d8f4f/aspnetcore-runtime-3.0.1-linux-arm.tar.gz 3,将sdk和runtime解压到dotnet-arm32文件夹中 tar zxf aspnetcore-runtime-3.0.1-linux-arm.tar.gz -C $HOME/dotnet-arm32 tar zxf dotnet-sdk-3.0.101-linux-arm.tar

Meaning of lg * N in Algorithmic Analysis

这一生的挚爱 提交于 2019-12-20 17:18:12
问题 I'm currently reading about algorithmic analysis and I read that a certain algorithm (weighted quick union with path compression) is of order N + M lg * N. Apparently though this is linear because lg * N is a constant in this universe. What mathematical operation is being referred to here. I am unfamiliar with the notation lg * N. 回答1: The answers given here so far are wrong. lg* n (read "log star") is the iterated logarithm. It is defined as recursively as 0 if n <= 1 lg* n = 1 + lg*(lg n)