Java耗时计算方法摘要
package com.happy.sqlite.test;import java.util.Calendar;public class LostTime {@SuppressWarnings("static-access")public static void main(String[] args) {long t1 = System.currentTimeMillis(); // 排序前取得当前时间try {Thread.currentThread().sleep(3160);} catch (InterruptedException e) {e.printStackTrace();}long t2 = System.currentTimeMillis(); // 排序后取得当前时间Calendar c = Calendar.getInstance();c.setTimeInMillis(t2 - t1);System.out.println("耗时: " + c.get(Calendar.MINUTE) + "分 "+ c.get(Calendar.SECOND) + "秒 " + c.get(Calendar.MILLISECOND)+ " 毫秒");}}