public class ProgramTimer {

//程序的开始时间

private long startTime;

//程序的结束时间

private long endTime;

public ProgramTimer () {

this.startTime = 0;

this.endTime = 0;

}

/**

* 开始记录程序运行时间

*

* @param startTime Long Integer

*/

public void start () {

this.startTime = System.currentTimeMillis();

}

/**

* 返回程序的运行时间

*

* @return String

*/

public String runningTime () {

this.endTime = System.currentTimeMillis();

return formatTime(endTime-startTime);

}

/**

* 对标准时的转换

*

* @param ms Long

* @return 程序总用时:X天X小时X分X秒X毫秒

*/

public static String formatTime(Long ms) {

Integer ss = 1000;

Integer mi = ss * 60;

Integer hh = mi * 60;

Integer dd = hh * 24;

Long day = ms / dd;

Long hour = (ms - day * dd) / hh;

Long minute = (ms - day * dd - hour * hh) / mi;

Long second = (ms - day * dd - hour * hh - minute * mi) / ss;

Long milliSecond = ms - day * dd - hour * hh - minute * mi - second * ss;

StringBuffer sb = new StringBuffer();

sb.append("程序总用时：");

if(day > 0) {

sb.append(day+"天");

}

if(hour > 0) {

sb.append(hour+"小时");

}

if(minute > 0) {

sb.append(minute+"分");

}

if(second > 0) {

sb.append(second+"秒");

}

if(milliSecond > 0) {

sb.append(milliSecond+"毫秒");

}

return sb.toString();

}

}