总有一种老式的方式:
long startTime = System.nanoTime();methodToTime();long endTime = System.nanoTime();long duration = (endTime - startTime); //divide by 1000000 to get milliseconds.

总有一种老式的方式:
long startTime = System.nanoTime();methodToTime();long endTime = System.nanoTime();long duration = (endTime - startTime); //divide by 1000000 to get milliseconds.