How do I execute a piece of code at a specified time?

The java.util.Timer class can be used to schedule code to be executed in the future. The TimerTask class is used to encapsulate the code to be executed.

Date whenToExecute = getTimeToExecuteCode();
Timer timer = new Timer();
timer.schedule(new TimerTask()
{
public void run()
{
// put the code you want to run here
}
}, whenToExecute);