displaying time

[i_me_roo]

Hi,

Is there a way of timing how long it takes between a piece of code executing to when it finishes and then displaying this time? I would like to display a clock which begins timing when a program starts running and stops when it finishes.

Thanks

[nanosani]

just add a timer at the start of the program execution .... there are two types of timers .... one for gui and one is general
general:
java.util.Timer
Timer t = new Timer();

gui:
javax.swing.*
Timer t = new Timer(ActionListener, delay);

Read more about the timers in the java API.

[cosi]

An alternative solution, I've used to as a cheap profiling trick in big programs:

long startTime = System.currentTimeMillis(); // time at start in millisecs

//
//code
//

long stopTime = System.currentTimeMillis(); // time at end

// time elapsed is stopTime-startTime

See this link for details.
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#currentTimeMillis()

[i_me_roo]

Thanx a lot for ur suggestions, been a great help! :D

[Aldehyde81]

An alternative solution, I've used to as a cheap profiling trick in big programs:

long startTime = System.currentTimeMillis(); // time at start in millisecs

//
//code
//

long stopTime = System.currentTimeMillis(); // time at end

// time elapsed is stopTime-startTime

See this link for details.
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#currentTimeMillis()

it display in this format
1204531604270
How to display in time format?

[javaAddict]

What you see is in milliseconds. When you get the difference, multiply by 1000 and you will have how many seconds have passed

[Aldehyde81]

I mean, I want to display it in hh:mm:ss
Can anyone suggest?

[javaAddict]

You have a value in milliseconds. You can either use SimpleDateFormat, or do it yourself using the following rules:
1 sec = 1000 millisec
1 min = 60 sec
1 hour = 60 min

And sorry about my last post, I made a very big mistake: You must divide by 1000 to get the seconds

[Aldehyde81]

Thanks..