//不知道是不是这个意思 long time = System.currentTimeMillis(); Calendar c = Calendar.getInstance(); c.setTimeInMillis(time); c.set( Calendar.HOUR, 0); c.set( Calendar.MINUTE, 0); c.set( Calendar.SECOND, 0); long end = c.getTimeInMillis(); long now = time - end; double jieguo = now / 1000.0; // NumberFormat num = new DecimalFormat("###.000"); System.out.println(new BigDecimal(jieguo).toString());//秒 System.out.println(now);//毫秒
是这个意思吗?public class Test1 { public static void main(String[] args) throws IOException { double time = getDecimalTime(1,30,30); System.out.printf("%.4f%n", time); } public static double getDecimalTime(int hour, int minute, int second) { return hour + (minute / 60.0) + (second / 3600.0); } }
看你保留几位了?
//不知道是不是这个意思
long time = System.currentTimeMillis();
Calendar c = Calendar.getInstance();
c.setTimeInMillis(time);
c.set(
Calendar.HOUR,
0);
c.set(
Calendar.MINUTE,
0);
c.set(
Calendar.SECOND,
0); long end = c.getTimeInMillis();
long now = time - end;
double jieguo = now / 1000.0;
// NumberFormat num = new DecimalFormat("###.000");
System.out.println(new BigDecimal(jieguo).toString());//秒
System.out.println(now);//毫秒
public static void main(String[] args) throws IOException {
double time = getDecimalTime(1,30,30);
System.out.printf("%.4f%n", time);
} public static double getDecimalTime(int hour, int minute, int second) {
return hour + (minute / 60.0) + (second / 3600.0);
}
}