Interclass Variables - Static/Non-static
Hello. I'm trying to modify a pre-existing class to pass a variable (in this case, a number of seconds) to another class in the same package. However, apparently I'm referencing a non static variable from a static context. I've browsed thru pages in previous forums but nothing quite seems to help me with this problem.
<code>
import java.util.Date;
public class Timer
{
private Date start_;
/**
* Start timer.
*/
public Timer()
{
reset();
}
public long nSeconds;
/**
* Returns exact number of milliseconds since timer was started.
*
* @return Number of milliseconds since timer was started.
*/
public long getTime()
{
Date now = new Date();
long nMillis = now.getTime() - start_.getTime();
return nMillis;
}
/**
* Restarts the timer.
*/
public void reset()
{
start_ = new Date(); // now
}
/**
* Returns a formatted string showing the elaspsed time
* suince the instance was created.
*
* @return Formatted time string.
*/
public String toString()
{
long nMillis = getTime();
long nHours= nMillis / 1000 / 60 / 60;
nMillis -= nHours * 1000 * 60 * 60;
long nMinutes = nMillis / 1000 / 60;
nMillis -= nMinutes * 1000 * 60;
long nSeconds = nMillis / 1000;
nMillis -= nSeconds * 1000;
StringBuffer time = new StringBuffer();
if (nHours > 0) time.append (nHours + ":");
if (nHours > 0 && nMinutes < 10) time.append ("0");
time.append (nMinutes + ":");
if (nSeconds < 10) time.append ("0");
time.append (nSeconds);
time.append (".");
if (nMillis < 100) time.append ("0");
if (nMillis < 10) time.append ("0");
time.append (nMillis);
return time.toString();
}
public static long nSecs = nSeconds;// <-my issue is here
/**
* Testing this class.
*
* @param args Not used.
*/
public static void main (String[] args)
{
Timer timer = new Timer();
for (int i = 0; i < 100000000; i++) {
double b = 998.43678;
double c = Math.sqrt (b);
}
System.out.println (timer);
}
}
</code>
Thoughts?
