JProgressBar Doesn't Start Until Try-catch finishes
up vote
4
down vote
favorite
I am writing a program which uses Random.ORG api. When I click calculate button, JProgressBar starts right after the opeartion is being done and stay freezed until this moment.
I tried extra try-catch clauses, if statements and bool-gates. None of them worked, how could I fix it?
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
java api try-catch gson jprogressbar
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
add a comment |
up vote
4
down vote
favorite
I am writing a program which uses Random.ORG api. When I click calculate button, JProgressBar starts right after the opeartion is being done and stay freezed until this moment.
I tried extra try-catch clauses, if statements and bool-gates. None of them worked, how could I fix it?
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
java api try-catch gson jprogressbar
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
Use aSwingWorker.
– Florent Bayle
Feb 5 '15 at 14:26
add a comment |
up vote
4
down vote
favorite
up vote
4
down vote
favorite
I am writing a program which uses Random.ORG api. When I click calculate button, JProgressBar starts right after the opeartion is being done and stay freezed until this moment.
I tried extra try-catch clauses, if statements and bool-gates. None of them worked, how could I fix it?
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
java api try-catch gson jprogressbar
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
I am writing a program which uses Random.ORG api. When I click calculate button, JProgressBar starts right after the opeartion is being done and stay freezed until this moment.
I tried extra try-catch clauses, if statements and bool-gates. None of them worked, how could I fix it?
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
java api try-catch gson jprogressbar
java api try-catch gson jprogressbar
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
asked Feb 5 '15 at 14:17
Lunatic Fnatic
302212
302212
Use aSwingWorker.
– Florent Bayle
Feb 5 '15 at 14:26
add a comment |
Use aSwingWorker.
– Florent Bayle
Feb 5 '15 at 14:26
Use a
SwingWorker.– Florent Bayle
Feb 5 '15 at 14:26
Use a
SwingWorker.– Florent Bayle
Feb 5 '15 at 14:26
add a comment |
2 Answers
2
active
oldest
votes
up vote
2
down vote
accepted
Try using swing worker in your method.
Swing Worker
Here is an example from old version of swing worker. Firs you need to add SwingWorker class to your project:
import javax.swing.SwingUtilities;
/**
* This is the 3rd version of SwingWorker (also known as
* SwingWorker 3), an abstract class that you subclass to
* perform GUI-related work in a dedicated thread. For
* instructions on using this class, see:
*
* http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
*
* Note that the API changed slightly in the 3rd version:
* You must now invoke start() on the SwingWorker after
* creating it.
*/
public abstract class SwingWorker
{
private Object value; // see getValue(), setValue()
private Thread thread;
/**
* Class to maintain reference to current worker thread
* under separate synchronization control.
*/
private static class ThreadVar
{
private Thread thread;
ThreadVar(Thread t)
{
thread = t;
}
synchronized Thread get()
{
return thread;
}
synchronized void clear()
{
thread = null;
}
}
private ThreadVar threadVar;
/**
* Get the value produced by the worker thread, or null if it
* hasn't been constructed yet.
*/
protected synchronized Object getValue()
{
return value;
}
/**
* Set the value produced by worker thread
*/
private synchronized void setValue(Object x)
{
value = x;
}
/**
* Compute the value to be returned by the <code>get</code> method.
*/
public abstract Object construct();
/**
* Called on the event dispatching thread (not on the worker thread)
* after the <code>construct</code> method has returned.
*/
public void finished()
{
}
/**
* A new method that interrupts the worker thread. Call this method
* to force the worker to stop what it's doing.
*/
public void interrupt()
{
Thread t = threadVar.get();
if (t != null)
{
t.interrupt();
}
threadVar.clear();
}
/**
* Return the value created by the <code>construct</code> method.
* Returns null if either the constructing thread or the current
* thread was interrupted before a value was produced.
*
* @return the value created by the <code>construct</code> method
*/
public Object get()
{
while (true)
{
Thread t = threadVar.get();
if (t == null)
{
return getValue();
}
try
{
t.join();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt(); // propagate
return null;
}
}
}
/**
* Start a thread that will call the <code>construct</code> method
* and then exit.
*/
public SwingWorker()
{
final Runnable doFinished = new Runnable()
{
public void run()
{
finished();
}
};
Runnable doConstruct = new Runnable()
{
public void run()
{
try
{
setValue(construct());
}
finally
{
threadVar.clear();
}
SwingUtilities.invokeLater(doFinished);
}
};
Thread t = new Thread(doConstruct);
threadVar = new ThreadVar(t);
}
/**
* Start the worker thread.
*/
public void start()
{
Thread t = threadVar.get();
if (t != null)
{
t.start();
}
}
}
Then add your logic inside:
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
// add your code here
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
// and so on...
return 0;
}
};
worker.start();
So the end resuld should look like this (Note that this is untested code):
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
return 0;
}
};
worker.start();
});
answered Feb 5 '15 at 14:29
Kiki
1,68842133
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
add a comment |
up vote
3
down vote
Swing is single threaded. Calling listeners, painting/updating UI all happen on a single thread called the Event Dispatch Thread (EDT).
Since you do all your work in the event handler code, the Swing UI cannot be updated until you return from your method (actionPerformed()).
Read this tutorial: Concurrency in Swing
What you should do is do your time-consuming work in a separate thread and only do short tasks in the EDT (e.g. UI updates).
Also check out the SwingWorker class which is designed to perform lengthy GUI-interaction tasks in a background thread.
answered Feb 5 '15 at 14:23
icza
160k24310353
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
Try using swing worker in your method.
Swing Worker
Here is an example from old version of swing worker. Firs you need to add SwingWorker class to your project:
import javax.swing.SwingUtilities;
/**
* This is the 3rd version of SwingWorker (also known as
* SwingWorker 3), an abstract class that you subclass to
* perform GUI-related work in a dedicated thread. For
* instructions on using this class, see:
*
* http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
*
* Note that the API changed slightly in the 3rd version:
* You must now invoke start() on the SwingWorker after
* creating it.
*/
public abstract class SwingWorker
{
private Object value; // see getValue(), setValue()
private Thread thread;
/**
* Class to maintain reference to current worker thread
* under separate synchronization control.
*/
private static class ThreadVar
{
private Thread thread;
ThreadVar(Thread t)
{
thread = t;
}
synchronized Thread get()
{
return thread;
}
synchronized void clear()
{
thread = null;
}
}
private ThreadVar threadVar;
/**
* Get the value produced by the worker thread, or null if it
* hasn't been constructed yet.
*/
protected synchronized Object getValue()
{
return value;
}
/**
* Set the value produced by worker thread
*/
private synchronized void setValue(Object x)
{
value = x;
}
/**
* Compute the value to be returned by the <code>get</code> method.
*/
public abstract Object construct();
/**
* Called on the event dispatching thread (not on the worker thread)
* after the <code>construct</code> method has returned.
*/
public void finished()
{
}
/**
* A new method that interrupts the worker thread. Call this method
* to force the worker to stop what it's doing.
*/
public void interrupt()
{
Thread t = threadVar.get();
if (t != null)
{
t.interrupt();
}
threadVar.clear();
}
/**
* Return the value created by the <code>construct</code> method.
* Returns null if either the constructing thread or the current
* thread was interrupted before a value was produced.
*
* @return the value created by the <code>construct</code> method
*/
public Object get()
{
while (true)
{
Thread t = threadVar.get();
if (t == null)
{
return getValue();
}
try
{
t.join();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt(); // propagate
return null;
}
}
}
/**
* Start a thread that will call the <code>construct</code> method
* and then exit.
*/
public SwingWorker()
{
final Runnable doFinished = new Runnable()
{
public void run()
{
finished();
}
};
Runnable doConstruct = new Runnable()
{
public void run()
{
try
{
setValue(construct());
}
finally
{
threadVar.clear();
}
SwingUtilities.invokeLater(doFinished);
}
};
Thread t = new Thread(doConstruct);
threadVar = new ThreadVar(t);
}
/**
* Start the worker thread.
*/
public void start()
{
Thread t = threadVar.get();
if (t != null)
{
t.start();
}
}
}
Then add your logic inside:
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
// add your code here
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
// and so on...
return 0;
}
};
worker.start();
So the end resuld should look like this (Note that this is untested code):
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
return 0;
}
};
worker.start();
});
answered Feb 5 '15 at 14:29
Kiki
1,68842133
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
add a comment |
up vote
2
down vote
accepted
Try using swing worker in your method.
Swing Worker
Here is an example from old version of swing worker. Firs you need to add SwingWorker class to your project:
import javax.swing.SwingUtilities;
/**
* This is the 3rd version of SwingWorker (also known as
* SwingWorker 3), an abstract class that you subclass to
* perform GUI-related work in a dedicated thread. For
* instructions on using this class, see:
*
* http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
*
* Note that the API changed slightly in the 3rd version:
* You must now invoke start() on the SwingWorker after
* creating it.
*/
public abstract class SwingWorker
{
private Object value; // see getValue(), setValue()
private Thread thread;
/**
* Class to maintain reference to current worker thread
* under separate synchronization control.
*/
private static class ThreadVar
{
private Thread thread;
ThreadVar(Thread t)
{
thread = t;
}
synchronized Thread get()
{
return thread;
}
synchronized void clear()
{
thread = null;
}
}
private ThreadVar threadVar;
/**
* Get the value produced by the worker thread, or null if it
* hasn't been constructed yet.
*/
protected synchronized Object getValue()
{
return value;
}
/**
* Set the value produced by worker thread
*/
private synchronized void setValue(Object x)
{
value = x;
}
/**
* Compute the value to be returned by the <code>get</code> method.
*/
public abstract Object construct();
/**
* Called on the event dispatching thread (not on the worker thread)
* after the <code>construct</code> method has returned.
*/
public void finished()
{
}
/**
* A new method that interrupts the worker thread. Call this method
* to force the worker to stop what it's doing.
*/
public void interrupt()
{
Thread t = threadVar.get();
if (t != null)
{
t.interrupt();
}
threadVar.clear();
}
/**
* Return the value created by the <code>construct</code> method.
* Returns null if either the constructing thread or the current
* thread was interrupted before a value was produced.
*
* @return the value created by the <code>construct</code> method
*/
public Object get()
{
while (true)
{
Thread t = threadVar.get();
if (t == null)
{
return getValue();
}
try
{
t.join();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt(); // propagate
return null;
}
}
}
/**
* Start a thread that will call the <code>construct</code> method
* and then exit.
*/
public SwingWorker()
{
final Runnable doFinished = new Runnable()
{
public void run()
{
finished();
}
};
Runnable doConstruct = new Runnable()
{
public void run()
{
try
{
setValue(construct());
}
finally
{
threadVar.clear();
}
SwingUtilities.invokeLater(doFinished);
}
};
Thread t = new Thread(doConstruct);
threadVar = new ThreadVar(t);
}
/**
* Start the worker thread.
*/
public void start()
{
Thread t = threadVar.get();
if (t != null)
{
t.start();
}
}
}
Then add your logic inside:
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
// add your code here
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
// and so on...
return 0;
}
};
worker.start();
So the end resuld should look like this (Note that this is untested code):
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
return 0;
}
};
worker.start();
});
answered Feb 5 '15 at 14:29
Kiki
1,68842133
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
Try using swing worker in your method.
Swing Worker
Here is an example from old version of swing worker. Firs you need to add SwingWorker class to your project:
import javax.swing.SwingUtilities;
/**
* This is the 3rd version of SwingWorker (also known as
* SwingWorker 3), an abstract class that you subclass to
* perform GUI-related work in a dedicated thread. For
* instructions on using this class, see:
*
* http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
*
* Note that the API changed slightly in the 3rd version:
* You must now invoke start() on the SwingWorker after
* creating it.
*/
public abstract class SwingWorker
{
private Object value; // see getValue(), setValue()
private Thread thread;
/**
* Class to maintain reference to current worker thread
* under separate synchronization control.
*/
private static class ThreadVar
{
private Thread thread;
ThreadVar(Thread t)
{
thread = t;
}
synchronized Thread get()
{
return thread;
}
synchronized void clear()
{
thread = null;
}
}
private ThreadVar threadVar;
/**
* Get the value produced by the worker thread, or null if it
* hasn't been constructed yet.
*/
protected synchronized Object getValue()
{
return value;
}
/**
* Set the value produced by worker thread
*/
private synchronized void setValue(Object x)
{
value = x;
}
/**
* Compute the value to be returned by the <code>get</code> method.
*/
public abstract Object construct();
/**
* Called on the event dispatching thread (not on the worker thread)
* after the <code>construct</code> method has returned.
*/
public void finished()
{
}
/**
* A new method that interrupts the worker thread. Call this method
* to force the worker to stop what it's doing.
*/
public void interrupt()
{
Thread t = threadVar.get();
if (t != null)
{
t.interrupt();
}
threadVar.clear();
}
/**
* Return the value created by the <code>construct</code> method.
* Returns null if either the constructing thread or the current
* thread was interrupted before a value was produced.
*
* @return the value created by the <code>construct</code> method
*/
public Object get()
{
while (true)
{
Thread t = threadVar.get();
if (t == null)
{
return getValue();
}
try
{
t.join();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt(); // propagate
return null;
}
}
}
/**
* Start a thread that will call the <code>construct</code> method
* and then exit.
*/
public SwingWorker()
{
final Runnable doFinished = new Runnable()
{
public void run()
{
finished();
}
};
Runnable doConstruct = new Runnable()
{
public void run()
{
try
{
setValue(construct());
}
finally
{
threadVar.clear();
}
SwingUtilities.invokeLater(doFinished);
}
};
Thread t = new Thread(doConstruct);
threadVar = new ThreadVar(t);
}
/**
* Start the worker thread.
*/
public void start()
{
Thread t = threadVar.get();
if (t != null)
{
t.start();
}
}
}
Then add your logic inside:
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
// add your code here
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
// and so on...
return 0;
}
};
worker.start();
So the end resuld should look like this (Note that this is untested code):
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
return 0;
}
};
worker.start();
});
answered Feb 5 '15 at 14:29
Kiki
1,68842133
Try using swing worker in your method.
Swing Worker
Here is an example from old version of swing worker. Firs you need to add SwingWorker class to your project:
import javax.swing.SwingUtilities;
/**
* This is the 3rd version of SwingWorker (also known as
* SwingWorker 3), an abstract class that you subclass to
* perform GUI-related work in a dedicated thread. For
* instructions on using this class, see:
*
* http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
*
* Note that the API changed slightly in the 3rd version:
* You must now invoke start() on the SwingWorker after
* creating it.
*/
public abstract class SwingWorker
{
private Object value; // see getValue(), setValue()
private Thread thread;
/**
* Class to maintain reference to current worker thread
* under separate synchronization control.
*/
private static class ThreadVar
{
private Thread thread;
ThreadVar(Thread t)
{
thread = t;
}
synchronized Thread get()
{
return thread;
}
synchronized void clear()
{
thread = null;
}
}
private ThreadVar threadVar;
/**
* Get the value produced by the worker thread, or null if it
* hasn't been constructed yet.
*/
protected synchronized Object getValue()
{
return value;
}
/**
* Set the value produced by worker thread
*/
private synchronized void setValue(Object x)
{
value = x;
}
/**
* Compute the value to be returned by the <code>get</code> method.
*/
public abstract Object construct();
/**
* Called on the event dispatching thread (not on the worker thread)
* after the <code>construct</code> method has returned.
*/
public void finished()
{
}
/**
* A new method that interrupts the worker thread. Call this method
* to force the worker to stop what it's doing.
*/
public void interrupt()
{
Thread t = threadVar.get();
if (t != null)
{
t.interrupt();
}
threadVar.clear();
}
/**
* Return the value created by the <code>construct</code> method.
* Returns null if either the constructing thread or the current
* thread was interrupted before a value was produced.
*
* @return the value created by the <code>construct</code> method
*/
public Object get()
{
while (true)
{
Thread t = threadVar.get();
if (t == null)
{
return getValue();
}
try
{
t.join();
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt(); // propagate
return null;
}
}
}
/**
* Start a thread that will call the <code>construct</code> method
* and then exit.
*/
public SwingWorker()
{
final Runnable doFinished = new Runnable()
{
public void run()
{
finished();
}
};
Runnable doConstruct = new Runnable()
{
public void run()
{
try
{
setValue(construct());
}
finally
{
threadVar.clear();
}
SwingUtilities.invokeLater(doFinished);
}
};
Thread t = new Thread(doConstruct);
threadVar = new ThreadVar(t);
}
/**
* Start the worker thread.
*/
public void start()
{
Thread t = threadVar.get();
if (t != null)
{
t.start();
}
}
}
Then add your logic inside:
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
// add your code here
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
// and so on...
return 0;
}
};
worker.start();
So the end resuld should look like this (Note that this is untested code):
kazananiBelirleButon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
SwingWorker worker = new SwingWorker() {
@Override
public Object construct() {
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
try {
HashMap<String, Object> randoms = randSonuc.generateSignedIntegers(5, 0, 10);
System.out.println(randoms.toString());
String test = randoms.toString().substring(randoms.toString().indexOf("{r")+1, randoms.toString().indexOf(", da")).replace("random=", "{"random":") + "}";
System.out.println(tarihiYazdir(test,14));
cekilisTarihiTextPane.setText(tarihiYazdir(test,2).toString());
sonucPane.setText("n"+sonuclariYazdir(test,0));
} catch (RandomOrgSendTimeoutException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgKeyNotRunningError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientRequestsError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgInsufficientBitsError e1) {
System.out.print("lol");
e1.printStackTrace();
} catch (RandomOrgBadHTTPResponseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgRANDOMORGError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (RandomOrgJSONRPCError e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
return 0;
}
};
worker.start();
});
answered Feb 5 '15 at 14:29
Kiki
1,68842133
edited Feb 5 '15 at 14:39
answered Feb 5 '15 at 14:29
Kiki
1,68842133
answered Feb 5 '15 at 14:29
Kiki
1,68842133
answered Feb 5 '15 at 14:29
Kiki
1,68842133
1,68842133
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
add a comment |
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Very clear explanation, thanks! I couldn't put worker.finished(); in my try-catch clause which causes when the operation is being done progress bar still goes on. Do I have to use final worker? Edit*** I simply changed the visibility. :)
– Lunatic Fnatic
Feb 5 '15 at 14:57
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Glad to help :)
– Kiki
Feb 5 '15 at 20:52
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
Hi, this is a wonderful explanation. May I know how can I update the progressbar with some %. My problem matches the scenario explained in this question.
– Alekhya Vemavarapu
Oct 26 '15 at 6:38
add a comment |
up vote
3
down vote
Swing is single threaded. Calling listeners, painting/updating UI all happen on a single thread called the Event Dispatch Thread (EDT).
Since you do all your work in the event handler code, the Swing UI cannot be updated until you return from your method (actionPerformed()).
Read this tutorial: Concurrency in Swing
What you should do is do your time-consuming work in a separate thread and only do short tasks in the EDT (e.g. UI updates).
Also check out the SwingWorker class which is designed to perform lengthy GUI-interaction tasks in a background thread.
answered Feb 5 '15 at 14:23
icza
160k24310353
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
add a comment |
up vote
3
down vote
Swing is single threaded. Calling listeners, painting/updating UI all happen on a single thread called the Event Dispatch Thread (EDT).
Since you do all your work in the event handler code, the Swing UI cannot be updated until you return from your method (actionPerformed()).
Read this tutorial: Concurrency in Swing
What you should do is do your time-consuming work in a separate thread and only do short tasks in the EDT (e.g. UI updates).
Also check out the SwingWorker class which is designed to perform lengthy GUI-interaction tasks in a background thread.
answered Feb 5 '15 at 14:23
icza
160k24310353
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
add a comment |
up vote
3
down vote
up vote
3
down vote
Swing is single threaded. Calling listeners, painting/updating UI all happen on a single thread called the Event Dispatch Thread (EDT).
Since you do all your work in the event handler code, the Swing UI cannot be updated until you return from your method (actionPerformed()).
Read this tutorial: Concurrency in Swing
What you should do is do your time-consuming work in a separate thread and only do short tasks in the EDT (e.g. UI updates).
Also check out the SwingWorker class which is designed to perform lengthy GUI-interaction tasks in a background thread.
answered Feb 5 '15 at 14:23
icza
160k24310353
Swing is single threaded. Calling listeners, painting/updating UI all happen on a single thread called the Event Dispatch Thread (EDT).
Since you do all your work in the event handler code, the Swing UI cannot be updated until you return from your method (actionPerformed()).
Read this tutorial: Concurrency in Swing
What you should do is do your time-consuming work in a separate thread and only do short tasks in the EDT (e.g. UI updates).
Also check out the SwingWorker class which is designed to perform lengthy GUI-interaction tasks in a background thread.
answered Feb 5 '15 at 14:23
icza
160k24310353
edited Feb 5 '15 at 14:34
answered Feb 5 '15 at 14:23
icza
160k24310353
answered Feb 5 '15 at 14:23
icza
160k24310353
answered Feb 5 '15 at 14:23
icza
160k24310353
160k24310353
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
add a comment |
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
Thank you, the tutorial helped a lot!
– Lunatic Fnatic
Feb 5 '15 at 14:58
add a comment |
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Use a
SwingWorker.– Florent Bayle
Feb 5 '15 at 14:26