keystroke event program help

[sana_22]

Hi there
i need a program that record the following time for keystroks
where user enter a string in textfield and the times that need to be capture are
the time to press the key and release it
the the to release the key and pressing the next key
the time for typing the whole string.
please help me even with small code

[Norm]

What have you tried so far? Do you have a small testing program you could post with your questions?

[DarrylBurke]

You didn't bother to reply to Norm's response on your earlier thread: urgent: I need help with on screen keyboard program with java

Why should we expect any better behavior this time round?

db

[Fubarable]

You didn't bother to reply to Norm's response on your earlier thread: urgent: I need help with on screen keyboard program with java

Why should we expect any better behavior this time round?

I guess it must not have been that urgent after all.

[sana_22]

i have done a small code for calcuating the start time and end time but i want that to be stored in arry for the times typing whole string

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.Calendar;
public class TKEY extends JFrame implements KeyListener {
	private JTextField t=new JTextField(10);
	private JTextField tt=new JTextField(10);
	private JTextField ttt=new JTextField(10);
	private JTextField tttt=new JTextField(10);
	private JLabel l1=new JLabel("enter the key");
	private JLabel l2=new JLabel("Keypressed");
	private JLabel l3=new JLabel("Keyreleased");
	private JLabel l4=new JLabel("Keytyped");
	private JPanel p=new JPanel(new FlowLayout());
	
	 int kp;
    int kr;
	int kt;
	Calendar c;

	public TKEY(){
		super("wlcome");
		this.setSize(200,300);
		p.add(l1);
		p.add(t);
		p.add(l2);
		p.add(tt);
		p.add(l3);
		p.add(ttt);
		p.add(l4);
		p.add(tttt);
		
		this.setContentPane(p);
		this.setVisible(true);
		t.addKeyListener(this);
		
		
		
	}
	

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new TKEY();
		// TODO Auto-generated method stub

	}

	@Override
	public void keyPressed(KeyEvent arg0) {
		c=Calendar.getInstance();
		kp=c.get(Calendar.MILLISECOND);
		tt.setText(""+kp);
		// TODO Auto-generated method stub
		
	}

	@Override
	public void keyReleased(KeyEvent arg0) {
		c=Calendar.getInstance();
		kr=c.get(Calendar.MILLISECOND);
		ttt.setText(""+kr);
		// TODO Auto-generated method stub
		
	}

	@Override
	public void keyTyped(KeyEvent arg0) {
		c=Calendar.getInstance();
		kt=c.get(Calendar.MILLISECOND);
		tttt.setText(""+kt);
		// TODO Auto-generated method stub
		
	}

}

[Norm]

What happens when you execute this program? Does it do what you want? If not, please explain.

[DarrylBurke]

Cross posted
I'M TRYING TO capture the time differeence of keyevents and have problem ...can you help me (Swing / AWT / SWT / JFace forum at JavaRanch)

db

[sana_22]

the code I provide gives the start time when pressing the key and releasing it and type it
but i need to calculate the time applying that on an actual string

I wrote a small program to capture the keystroke timing event which are hold time: time from pressing a key and release it
flight time: time from pressing one key and pressing the next key.. and the total time to type a string ...I've tried to make it simple but there is some sort of inconveniences where it it is giving me the time to type the whole string is smaller than some other and i got an execption i don't how to deal with that
here is the code
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.Calendar;
public class TKEY extends JFrame implements KeyListener,ActionListener {
private JTextField t=new JTextField(10);
private JTextField tt=new JTextField(10);
private JTextField ttt=new JTextField(10);
private JTextField tttt=new JTextField(10);
private JLabel l1=new JLabel("enter the key");
private JLabel l2=new JLabel("Keypressed");
private JLabel l3=new JLabel("Keyreleased");
private JLabel l4=new JLabel("Keytyped");
private JPanel p=new JPanel(new FlowLayout());
private JButton n=new JButton("click");
int i[]=new int[10];
long tstart;
long start = 0;
long end = 0;
long delay = 0;
int length=3;
long a[]=new long[(2*length)-1];
// int kr,v;
//i//nt kt;
//Calendar c;


public TKEY(){
super("wlcome");
this.setSize(200,300);
p.add(l1);
p.add(t);
p.add(l2);
p.add(tt);
p.add(l3);
p.add(ttt);
p.add(l4);
p.add(tttt);
p.add(n);

this.setContentPane(p);
this.setVisible(true);
t.addKeyListener(this);
n.addActionListener(this);



}


/**
* @param args
*/
public static void main(String[] args) {
new TKEY();
// TODO Auto-generated method stub

}

@Override
public void keyPressed(KeyEvent arg0) {
// c=Calendar.getInstance();
//kp=c.get(Calendar.MILLISECOND);
//tt.setText(""+kp);
// TODO Auto-generated method stub
if(t.getText().length()==1)
tstart = System.currentTimeMillis();
delay = start;
start = System.currentTimeMillis();



}

@Override
public void keyReleased(KeyEvent arg0) {
//c=Calendar.getInstance();
// kr=c.get(Calendar.MILLISECOND);
//ttt.setText(""+kr);
// TODO Auto-generated method stub
end = System.currentTimeMillis();
int pos=(t.getText().length() - 1) * 2;
if(t.getText().length() <= length) {
a[pos] = end - start;
if (pos != 0) {
a[pos - 1] = start - delay;

}


}
if (t.getText().length() == length){
// button.setEnabled(true);
long tend = System.currentTimeMillis();
a[length * 2-1] = tend-tstart;
}




}

// @Override
/* public void keyTyped(KeyEvent arg0) {
c=Calendar.getInstance();
kt=c.get(Calendar.MILLISECOND);
tttt.setText(""+kt);
// TODO Auto-generated method stub

}*/


@Override
public void actionPerformed(ActionEvent arg0) {
for(int i=0;i<a.length;i++)
//String t=" "+a[i]+"\t";
//JOptionPane.showMessageDialog(null, "difference:"+a[i]);
System.out.println(a[i]+"\n");
// TODO Auto-generated method stub

}


@Override
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub

}

}




and the exception i got is
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 5
at TKEY.keyReleased(TKEY.java:96)
at java.awt.Component.processKeyEvent(Unknown Source)
at javax.swing.JComponent.processKeyEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.KeyboardFocusManager.redispatchEvent(Unkn own Source)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEv ent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.preDispatchKe yEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAsse rtions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent (Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPri vilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[Norm]

java.lang.ArrayIndexOutOfBoundsException: 5
at TKEY.keyReleased(TKEY.java:96)

At line 96 the index to an array is past the end of the array. Look at line 96 and see why the index used on that line goes past the end of the array.


Please edit your post and add code tags:
http://www.java-forums.org/misc.php?do=bbcode#code

[sana_22]

how can i fix that

[KevinWorkman]

how can i fix that

What have you tried?

Stop ignoring what people are asking or requesting. Norm has saint-like patience, but you've been pretty rude this entire post. I recommend you go back and re-read what everybody wrote, and follow the advice you've already received.

[Norm]

Answering this question will tell you how to fix the code:

why the index used on that line goes past the end of the array.

Change the code to keep the index inbounds.