Checking Run time in IntelliJ IDEA

Question

我怎样才能看到代码在InteliJ中运行需要多长时间？

Answer 1

I don't think you can with Intellij, you either have to use a profiler like Yourkit to profile the code or use some primitive benchmarks using System.currentTimeInMillis() . Alternatively you can use Apache Commons StopWatch to do some benchmarking:

StopWatch stopwatch = new StopWatch();
stopwatch.start();
... some code...
stopwatch.stop();
long timeTaken = stopWatch.getTime()

https://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/time/StopWatch.html

EDIT: There is a plugin available for Intellij that uses VisualVM to do profiling, you could install this as another alternative.

http://plugins.intellij.net/plugin/?id=3749