Menu
I'm developing a system that often use the system time because the Delayed interface.
What is fastet way to get the time from system?
Currently I'm using Calendar.getInstance().getTimeInMillis() every time I need to get the time, but I don't know if there is a faster way.
253
You can get the time from the LocaldateTime object using the toLocalTime() method. Therefore, another way to get the current time is to retrieve the current LocaldateTime object using the of() method of the same class. From this object get the time using the toLocalTime() method.
System. currentTimeMillis() takes about 29 nanoseconds per call while System. nanoTime() takes about 25 nanoseconds.
The getTime() method of Java Date class returns the number of milliseconds since January 1, 1970, 00:00:00 GTM which is represented by Date object. Parameters: The function does not accept any parameter. Return Value: It returns the number of milliseconds since January 1, 1970, 00:00:00 GTM.
We need to use the minus methods listed above. LocalDateTime updatedTime LocalDateTime now = LocalDateTime. now(); updatedTime = now. minusHours(2); updatedTime = now.
System.currentTimeMillis()
"Returns the current time in milliseconds".
Use this to get the actual system time.
System.nanoTime().
"The value returned represents nanoseconds since some fixed but arbitrary origin time"
Use this is you're measuring time lapses / events.
128
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
