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(...
选择if选择switch启动测试条件选择执行if条件执行switch条件记录性能数据 接下来是安装过程。结合序列图,可以展示测试工具执行不同条件的过程。 MonitorJDKTesterMonitorJDKTester测试using if记录性能测试using switch记录性能 安装过程中,我们执行一系列的命令: # 编译测试代码javac TestPerformance.java# 运行测试程序javaTes...
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....
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 ...
heap memory size and latency don’t meet application requirements.Therefore, a new debugging is needed with the actual requirements that the app has. You might have to tune the heap size again, determine GC duration and frequency, and decide if you need to switch to another garbage collector....
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 ...
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...
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 ...
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); } ...
} }其while和if关键字与小括号之间并没有空格，违反了该手册中3. 【强制】if/for/while/switch/do...