Metoda urnika (naloga TimerTask, datum in čas) razreda Timer se uporablja za načrtovanje izvedbe naloge ob danem času. Če je podani čas v preteklosti, je opravilo načrtovano pri tem gibanju za izvedbo.
konstruktor v Javi
Sintaksa
public void schedule(TimerTask task, Date time)
Parameter
naloga - to je naloga, ki jo je treba načrtovati.
čas - je čas, v katerem je treba nalogo izvršiti.
Meti
IllegalArgumentException - Vrže izjemo, ko je time.getTime() negativen.
IllegalStateException - Vrže izjemo, ko je opravilo načrtovano ali preklicano, ali ko je časovnik preklican ali ko je nit časovnika prekinjena.
NullPointerException - Vrže izjemo, ko je opravilo ali čas nič.
Primer 1
import java.util.*; public class JavaTimerScheduleExample1 { public static void main(String[] args) { // creating timer task, timer Timer t = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { System.out.println('Task is on'); }; }; t.schedule(tt, new Date()); } } Preizkusite zdaj Izhod:
Task is on
Primer 2
import java.util.*; public class JavaTimerScheduleExample2{ public static void main(String[] args) { // creating timer task, timer Timer t = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { for(int i=1; i<=10;i++) { system.out.println('working on'); } }; t.schedule(tt, new date()); < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> working on working on working on working on working on working on working on working on working on working on </pre> <p>The schedule (TimerTask task, Date firstTime, long period) is the method of Timer class. It is used to schedule the given task again and again in given fixed time execution.</p> <h2>Syntax</h2> <pre> public void schedule(TimerTask task, Date firstTime, long period) </pre> <h2>Parameter</h2> <p> <strong>task -</strong> It is the task that is scheduled.</p> <p> <strong>firstTime -</strong> It is the First time in which given task is executed.</p> <p> <strong>period -</strong> It is the time in milliseconds execution.</p> <h2>Throws</h2> <p> <strong>IllegalArgumentException -</strong> It throws the exception when firstTime.getTime() is less than 0, or period is greater than or equal to 0</p> <p> <strong>IllegalStateException -</strong> It throws the exception when the task is already scheduled or canceled, or when the timer is canceled, or when timer thread is terminated.</p> <p> <strong>NullPointerException -</strong> It throws the exception when task or time is null.</p> <h3>Example 3</h3> <pre> import java.util.*; public class JavaTimerScheduleExample3 { public static void main(String[] args) { // creating timer task, timer Timer t = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { System.out.println('working on'); }; }; t.schedule(tt, new Date(),1000); ; } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> working on working on working on working on . . . . . </pre> <h3>Example 4</h3> <pre> import java.util.*; public class JavaTimerScheduleExample4{ public static void main(String[] args) { // creating timer task, timer Timer t = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { for(int i=1; i<=10;i++) { system.out.println('working on'); } }; t.schedule(tt, new date(),1000); < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> working on working on working on working on . . . . . </pre> <br></=10;i++)></pre></=10;i++)> Razpored (naloga TimerTask, Date firstTime, dolgo obdobje) je metoda razreda Timer. Uporablja se za načrtovanje dane naloge znova in znova v danem fiksnem času izvedbe.
Sintaksa
public void schedule(TimerTask task, Date firstTime, long period)
Parameter
naloga - To je naloga, ki je načrtovana.
prvič - To je prvič, ko se dana naloga izvede.
obdobje - To je čas v milisekundah izvedbe.
Meti
IllegalArgumentException - Vrže izjemo, ko je firstTime.getTime() manjši od 0 ali je obdobje večje ali enako 0
IllegalStateException - Vrže izjemo, ko je opravilo že načrtovano ali preklicano, ali ko je časovnik preklican ali ko je nit časovnika prekinjena.
NullPointerException - Vrže izjemo, ko je opravilo ali čas nič.
Primer 3
import java.util.*; public class JavaTimerScheduleExample3 { public static void main(String[] args) { // creating timer task, timer Timer t = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { System.out.println('working on'); }; }; t.schedule(tt, new Date(),1000); ; } } Preizkusite zdaj Izhod:
working on working on working on working on . . . . .
Primer 4
import java.util.*; public class JavaTimerScheduleExample4{ public static void main(String[] args) { // creating timer task, timer Timer t = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { for(int i=1; i<=10;i++) { system.out.println(\'working on\'); } }; t.schedule(tt, new date(),1000); < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> working on working on working on working on . . . . . </pre> <br></=10;i++)>