publicclassTestEfficiency{publicstaticvoidmain(String[]args){longstartTime,endTime;// if-else performance teststartTime=System.nanoTime();for(inti=0;i<1000000;i++){intvalue=i%10;if(value==0){continue;}elseif(value==1){continue;}elseif(value==2){continue;}// ... more conditionselseif(...
如果有两个以上 if/else 粘在一起或其大小是不可预测的块,那么您可能会非常考虑一个 switch 陈述。或者,您也可以抓住 多态性。首先创建一些界面:public interface Action { void execute(String input); }并在某些情况下掌握所有实现 Map。您可以静态或动态地执行以下操作:Map...
https://stackoverflow.com/questions/33646781/java-performance-string-indexofchar-vs-string-indexofsingle-string 2. 考虑使用阿里 p3c 插件 该插件和 SonarLint 不冲突,可同时使用。 3. switch 必须有 default [阿里手册] 在一个 switch 块内,都必须包含一个 default 语句并且放在最后,即使空代码。 原因:1....
void createFile(String name,boolean temp){ if(temp){ new File("./temp"+name); }else{ new File(name); } } 好的: void createFile(String name){ new File(name); } void createTempFile(String name){ new File("./temp"+name); } ...
省略thenif a then end --> if a end 省略dowhile a do end -- while a end 省略infor k,v in pairs(t) do end --> for k,v pairs(t) end 支持switchswitch a case 1,3,5,7,9 print(1) case 2,4,6,8 print(2) case 0 print(0) default print(nil) end ...
If you have 300 threads running and 8 cores to run them on, you have to divide the time up so each one gets its share, with each core running for a short period of time and then moving onto the next thread. This is done through a “context switch,” making the CPU switch from ...
While the automated retry behavior helps to improve resiliency and usability for the most applications, it might come at odds when doing performance benchmarks, especially when measuring latency. The client-observed latency will spike if the experiment hits the server throttle and causes the client ...
I am very pleased with the decision to switch to commonmark-java based parser for my own projects. Even though I had to do major surgery on its innards to get full source position tracking and AST that matches source elements, it is a pleasure to work with and is now a pleasure to ex...
</If> <Else> Service type="magnus-internal/php" fn="set-variable" error="404" </Else> Troubleshooting FastCGI Plug-in Fastcgistub is a process manager that manages the lifecycle of the FastCGI application processes. Fastcgistub logs its messages into aFastcgistub.logfile under Web Server's ...
if (resultCode == JobScheduler.ResultSuccess) { Log.Info("Message", "Job Schedule!"); } else { Log.Info("Message", "Job shceduling failed"); } } public void CancelJob() { scheduler.Cancel(123); }` AttendancePage.cspublic partial class AttendancePage : ContentPage { MainActivity main...