请求高手 问一下为什么我以下的这段程序获得的秒数始终不变的
import java.util.*;public class TestTimer
{
public static void main(String[] args)
{
final int i=0;
TimerTask task = new TimerTask(){public void run(){
System.out.println(calculation.getCSec());
}};
Timer timer = new Timer() ;
timer.schedule(task, 1000, 2000); }
}class calculation
{
static Calendar c = Calendar.getInstance();
static int getCHour()
{
return c.get(Calendar.HOUR_OF_DAY);
} static int getCMin()
{
return c.get(Calendar.MINUTE);
}
static int getCSec()
{
return c.get(Calendar.SECOND);
}
}
这是运行结果
E:\java>java TestTimer
30
30
30
30
30
30
30
30高手求救
import java.util.*;public class TestTimer
{
public static void main(String[] args)
{
final int i=0;
TimerTask task = new TimerTask(){public void run(){
System.out.println(calculation.getCSec());
}};
Timer timer = new Timer() ;
timer.schedule(task, 1000, 2000); }
}class calculation
{
static Calendar c = Calendar.getInstance();
static int getCHour()
{
return c.get(Calendar.HOUR_OF_DAY);
} static int getCMin()
{
return c.get(Calendar.MINUTE);
}
static int getCSec()
{
return c.get(Calendar.SECOND);
}
}
这是运行结果
E:\java>java TestTimer
30
30
30
30
30
30
30
30高手求救
也就是说后面你返回的都是同一个时刻的时、分、秒。import java.util.*;public class TestTimer
{
public static void main(String[] args)
{
final int i=0;
TimerTask task = new TimerTask(){public void run(){
System.out.println(calculation.getCSec());
}};
Timer timer = new Timer() ;
timer.schedule(task, 1000, 2000);
}
}class calculation
{
//static Calendar c = Calendar.getInstance();
static int getCHour()
{
return Calendar.getInstance()..get(Calendar..HOUR_OF_DAY);
//return c.get(Calendar.HOUR_OF_DAY);
}
static int getCMin()
{
return Calendar.getInstance().get(Calendar.MINUTE);
//return c.get(Calendar.MINUTE);
}
static int getCSec()
{
return Calendar.getInstance()..get(Calendar.SECOND);
//return c.get(Calendar.SECOND);
}
}