Using Timer To Pause Program Execution [duplicate]
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This question already has an answer here:
Repaint is not functioning properly as required
1 answer
I want to pause the execution of a Swing Program for a specified amount of time. Naturally the first thing that I used was Thread.sleep(100) (since, I am a noob). Then I got to know that my program is not thread safe so I decided to use Timer with some suggestions from fellow programmers. The problem is I am unable to get any sources from where I can learn how to delay the thread, using Timer. Most of them use Timer for delaying execution. Please help me solve this problem. I have provided a compileable code snippet below.
import javax.swing.*;
import java.awt.*;
public class MatrixBoard_swing extends JFrame{
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
}
EDIT: My trial for a Timer implementation(please tell me if it is wrong):
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class MatrixBoard_swing extends JFrame implements ActionListener{
Timer timer;
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
timer = new Timer(100, this);
timer.start();
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
@Override
public void actionPerformed(ActionEvent arg0) {
repaint();
rad++;
if(rad >= 200){
timer.stop();
}
}
java swing user-interface timer
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
marked as duplicate by Hovercraft Full Of Eels, Joeri Hendrickx, crockeea, Clockwork-Muse, Pshemo Apr 23 '14 at 14:54
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
|
show 8 more comments
This question already has an answer here:
Repaint is not functioning properly as required
1 answer
I want to pause the execution of a Swing Program for a specified amount of time. Naturally the first thing that I used was Thread.sleep(100) (since, I am a noob). Then I got to know that my program is not thread safe so I decided to use Timer with some suggestions from fellow programmers. The problem is I am unable to get any sources from where I can learn how to delay the thread, using Timer. Most of them use Timer for delaying execution. Please help me solve this problem. I have provided a compileable code snippet below.
import javax.swing.*;
import java.awt.*;
public class MatrixBoard_swing extends JFrame{
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
}
EDIT: My trial for a Timer implementation(please tell me if it is wrong):
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class MatrixBoard_swing extends JFrame implements ActionListener{
Timer timer;
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
timer = new Timer(100, this);
timer.start();
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
@Override
public void actionPerformed(ActionEvent arg0) {
repaint();
rad++;
if(rad >= 200){
timer.stop();
}
}
java swing user-interface timer
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
marked as duplicate by Hovercraft Full Of Eels, Joeri Hendrickx, crockeea, Clockwork-Muse, Pshemo Apr 23 '14 at 14:54
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
1
You're still callingThread.sleep(...)on the Swing event thread. I thought that we had this ironed out in your previous similar question. What gives?
– Hovercraft Full Of Eels
Feb 20 '14 at 5:23
4
"Using Timer To Pause Program Execution" Pause what exactly, the GUI rendering? The GUI doing some long running operation? Allowing user input? Note thatwhile(rad < 200){ ... Thread.sleep(100);indicates a common, classic mistake with rendering animation in a GUI.
– Andrew Thompson
Feb 20 '14 at 5:24
I am unable to understand how to use the Timer. You had advised me to provide a simple, compileable code. So I posted it here.
– Crystal Meth
Feb 20 '14 at 5:24
@AndrewThompson: he's already been told all of this.
– Hovercraft Full Of Eels
Feb 20 '14 at 5:24
@AndrewThompson: Yes, I want to pause the GUI rendering. I know what you are saying. I just want an example as to how.
– Crystal Meth
Feb 20 '14 at 5:25
|
show 8 more comments
This question already has an answer here:
Repaint is not functioning properly as required
1 answer
I want to pause the execution of a Swing Program for a specified amount of time. Naturally the first thing that I used was Thread.sleep(100) (since, I am a noob). Then I got to know that my program is not thread safe so I decided to use Timer with some suggestions from fellow programmers. The problem is I am unable to get any sources from where I can learn how to delay the thread, using Timer. Most of them use Timer for delaying execution. Please help me solve this problem. I have provided a compileable code snippet below.
import javax.swing.*;
import java.awt.*;
public class MatrixBoard_swing extends JFrame{
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
}
EDIT: My trial for a Timer implementation(please tell me if it is wrong):
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class MatrixBoard_swing extends JFrame implements ActionListener{
Timer timer;
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
timer = new Timer(100, this);
timer.start();
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
@Override
public void actionPerformed(ActionEvent arg0) {
repaint();
rad++;
if(rad >= 200){
timer.stop();
}
}
java swing user-interface timer
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
This question already has an answer here:
Repaint is not functioning properly as required
1 answer
I want to pause the execution of a Swing Program for a specified amount of time. Naturally the first thing that I used was Thread.sleep(100) (since, I am a noob). Then I got to know that my program is not thread safe so I decided to use Timer with some suggestions from fellow programmers. The problem is I am unable to get any sources from where I can learn how to delay the thread, using Timer. Most of them use Timer for delaying execution. Please help me solve this problem. I have provided a compileable code snippet below.
import javax.swing.*;
import java.awt.*;
public class MatrixBoard_swing extends JFrame{
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
}
EDIT: My trial for a Timer implementation(please tell me if it is wrong):
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class MatrixBoard_swing extends JFrame implements ActionListener{
Timer timer;
public static void main(String args){
SwingUtilities.invokeLater(new Runnable() {
public void run() {
MatrixBoard_swing b = new MatrixBoard_swing();
}
});
}
MatrixBoard_swing(){
this.setSize(640, 480);
this.setVisible(true);
timer = new Timer(100, this);
timer.start();
}
int rad = 10;
public void paint(Graphics g){
super.paint(g);
g.drawOval(400-rad, 400-rad, rad, rad);
}
@Override
public void actionPerformed(ActionEvent arg0) {
repaint();
rad++;
if(rad >= 200){
timer.stop();
}
}
This question already has an answer here:
Repaint is not functioning properly as required
1 answer
java swing user-interface timer
java swing user-interface timer
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
edited Feb 20 '14 at 5:33
Crystal Meth
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
asked Feb 20 '14 at 5:21
Crystal MethCrystal Meth
423415
423415
marked as duplicate by Hovercraft Full Of Eels, Joeri Hendrickx, crockeea, Clockwork-Muse, Pshemo Apr 23 '14 at 14:54
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Hovercraft Full Of Eels, Joeri Hendrickx, crockeea, Clockwork-Muse, Pshemo Apr 23 '14 at 14:54
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
1
You're still callingThread.sleep(...)on the Swing event thread. I thought that we had this ironed out in your previous similar question. What gives?
– Hovercraft Full Of Eels
Feb 20 '14 at 5:23
4
"Using Timer To Pause Program Execution" Pause what exactly, the GUI rendering? The GUI doing some long running operation? Allowing user input? Note thatwhile(rad < 200){ ... Thread.sleep(100);indicates a common, classic mistake with rendering animation in a GUI.
– Andrew Thompson
Feb 20 '14 at 5:24
I am unable to understand how to use the Timer. You had advised me to provide a simple, compileable code. So I posted it here.
– Crystal Meth
Feb 20 '14 at 5:24
@AndrewThompson: he's already been told all of this.
– Hovercraft Full Of Eels
Feb 20 '14 at 5:24
@AndrewThompson: Yes, I want to pause the GUI rendering. I know what you are saying. I just want an example as to how.
– Crystal Meth
Feb 20 '14 at 5:25
|
show 8 more comments
1
You're still callingThread.sleep(...)on the Swing event thread. I thought that we had this ironed out in your previous similar question. What gives?
– Hovercraft Full Of Eels
Feb 20 '14 at 5:23
4
"Using Timer To Pause Program Execution" Pause what exactly, the GUI rendering? The GUI doing some long running operation? Allowing user input? Note thatwhile(rad < 200){ ... Thread.sleep(100);indicates a common, classic mistake with rendering animation in a GUI.
– Andrew Thompson
Feb 20 '14 at 5:24
I am unable to understand how to use the Timer. You had advised me to provide a simple, compileable code. So I posted it here.
– Crystal Meth
Feb 20 '14 at 5:24
@AndrewThompson: he's already been told all of this.
– Hovercraft Full Of Eels
Feb 20 '14 at 5:24
@AndrewThompson: Yes, I want to pause the GUI rendering. I know what you are saying. I just want an example as to how.
– Crystal Meth
Feb 20 '14 at 5:25
1
1
You're still calling
Thread.sleep(...) on the Swing event thread. I thought that we had this ironed out in your previous similar question. What gives?– Hovercraft Full Of Eels
Feb 20 '14 at 5:23
You're still calling
Thread.sleep(...) on the Swing event thread. I thought that we had this ironed out in your previous similar question. What gives?– Hovercraft Full Of Eels
Feb 20 '14 at 5:23
4
4
"Using Timer To Pause Program Execution" Pause what exactly, the GUI rendering? The GUI doing some long running operation? Allowing user input? Note that
while(rad < 200){ ... Thread.sleep(100); indicates a common, classic mistake with rendering animation in a GUI.– Andrew Thompson
Feb 20 '14 at 5:24
"Using Timer To Pause Program Execution" Pause what exactly, the GUI rendering? The GUI doing some long running operation? Allowing user input? Note that
while(rad < 200){ ... Thread.sleep(100); indicates a common, classic mistake with rendering animation in a GUI.– Andrew Thompson
Feb 20 '14 at 5:24
I am unable to understand how to use the Timer. You had advised me to provide a simple, compileable code. So I posted it here.
– Crystal Meth
Feb 20 '14 at 5:24
I am unable to understand how to use the Timer. You had advised me to provide a simple, compileable code. So I posted it here.
– Crystal Meth
Feb 20 '14 at 5:24
@AndrewThompson: he's already been told all of this.
– Hovercraft Full Of Eels
Feb 20 '14 at 5:24
@AndrewThompson: he's already been told all of this.
– Hovercraft Full Of Eels
Feb 20 '14 at 5:24
@AndrewThompson: Yes, I want to pause the GUI rendering. I know what you are saying. I just want an example as to how.
– Crystal Meth
Feb 20 '14 at 5:25
@AndrewThompson: Yes, I want to pause the GUI rendering. I know what you are saying. I just want an example as to how.
– Crystal Meth
Feb 20 '14 at 5:25
|
show 8 more comments
1 Answer
1
active
oldest
votes
So instead of...
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
You simply need to turn the logic around a little...
Timer timer = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent evt) {
rad++;
if (rad < 200) {
repaint();
} else {
((Timer)evt.getSource()).stop();
}
}
});
timer.start();
Basically, the Timer will act as the Thread.sleep(), but in a nice way that doesn't break the UI, but will allow you to inject a delay between execution. Each time it executes, you need to increment your value, test for the "stop" condition and update otherwise...
Take a look at How to Use Swing Timers and the other 3, 800 questions on the subject on SO...
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
So instead of...
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
You simply need to turn the logic around a little...
Timer timer = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent evt) {
rad++;
if (rad < 200) {
repaint();
} else {
((Timer)evt.getSource()).stop();
}
}
});
timer.start();
Basically, the Timer will act as the Thread.sleep(), but in a nice way that doesn't break the UI, but will allow you to inject a delay between execution. Each time it executes, you need to increment your value, test for the "stop" condition and update otherwise...
Take a look at How to Use Swing Timers and the other 3, 800 questions on the subject on SO...
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
add a comment |
So instead of...
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
You simply need to turn the logic around a little...
Timer timer = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent evt) {
rad++;
if (rad < 200) {
repaint();
} else {
((Timer)evt.getSource()).stop();
}
}
});
timer.start();
Basically, the Timer will act as the Thread.sleep(), but in a nice way that doesn't break the UI, but will allow you to inject a delay between execution. Each time it executes, you need to increment your value, test for the "stop" condition and update otherwise...
Take a look at How to Use Swing Timers and the other 3, 800 questions on the subject on SO...
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
add a comment |
So instead of...
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
You simply need to turn the logic around a little...
Timer timer = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent evt) {
rad++;
if (rad < 200) {
repaint();
} else {
((Timer)evt.getSource()).stop();
}
}
});
timer.start();
Basically, the Timer will act as the Thread.sleep(), but in a nice way that doesn't break the UI, but will allow you to inject a delay between execution. Each time it executes, you need to increment your value, test for the "stop" condition and update otherwise...
Take a look at How to Use Swing Timers and the other 3, 800 questions on the subject on SO...
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
So instead of...
while(rad < 200){
repaint();
rad++;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
You simply need to turn the logic around a little...
Timer timer = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent evt) {
rad++;
if (rad < 200) {
repaint();
} else {
((Timer)evt.getSource()).stop();
}
}
});
timer.start();
Basically, the Timer will act as the Thread.sleep(), but in a nice way that doesn't break the UI, but will allow you to inject a delay between execution. Each time it executes, you need to increment your value, test for the "stop" condition and update otherwise...
Take a look at How to Use Swing Timers and the other 3, 800 questions on the subject on SO...
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
answered Feb 20 '14 at 5:38
MadProgrammerMadProgrammer
303k17156275
303k17156275
add a comment |
add a comment |
1
You're still calling
Thread.sleep(...)on the Swing event thread. I thought that we had this ironed out in your previous similar question. What gives?– Hovercraft Full Of Eels
Feb 20 '14 at 5:23
4
"Using Timer To Pause Program Execution" Pause what exactly, the GUI rendering? The GUI doing some long running operation? Allowing user input? Note that
while(rad < 200){ ... Thread.sleep(100);indicates a common, classic mistake with rendering animation in a GUI.– Andrew Thompson
Feb 20 '14 at 5:24
I am unable to understand how to use the Timer. You had advised me to provide a simple, compileable code. So I posted it here.
– Crystal Meth
Feb 20 '14 at 5:24
@AndrewThompson: he's already been told all of this.
– Hovercraft Full Of Eels
Feb 20 '14 at 5:24
@AndrewThompson: Yes, I want to pause the GUI rendering. I know what you are saying. I just want an example as to how.
– Crystal Meth
Feb 20 '14 at 5:25