Ajs135
asked on
[Java] Removing JLabel from an Array...
Hello, I am trying to get this program to remove a JLabel from the array until requirements met. but i keep getting this error.
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfB
at java.awt.Container.remove(
at countingconstant.CountingC
at javax.swing.AbstractButton
at javax.swing.AbstractButton
at javax.swing.DefaultButtonM
at javax.swing.DefaultButtonM
at javax.swing.plaf.basic.Bas
at java.awt.Component.process
at javax.swing.JComponent.pro
at java.awt.Component.process
at java.awt.Container.process
at java.awt.Component.dispatc
at java.awt.Container.dispatc
at java.awt.Component.dispatc
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.Container.dispatc
at java.awt.Window.dispatchEv
at java.awt.Component.dispatc
at java.awt.EventQueue.dispat
at java.awt.EventQueue.access
at java.awt.EventQueue$1.run(
at java.awt.EventQueue$1.run(
at java.security.AccessContro
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue$2.run(
at java.awt.EventQueue$2.run(
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue.dispat
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
What Im trying to do, I have this array with this integers. when the user put in the Index Starting Point, and The Count. it will go thru the array removing those numbers.
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfB
at java.awt.Container.remove(
at countingconstant.CountingC
at javax.swing.AbstractButton
at javax.swing.AbstractButton
at javax.swing.DefaultButtonM
at javax.swing.DefaultButtonM
at javax.swing.plaf.basic.Bas
at java.awt.Component.process
at javax.swing.JComponent.pro
at java.awt.Component.process
at java.awt.Container.process
at java.awt.Component.dispatc
at java.awt.Container.dispatc
at java.awt.Component.dispatc
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.Container.dispatc
at java.awt.Window.dispatchEv
at java.awt.Component.dispatc
at java.awt.EventQueue.dispat
at java.awt.EventQueue.access
at java.awt.EventQueue$1.run(
at java.awt.EventQueue$1.run(
at java.security.AccessContro
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue$2.run(
at java.awt.EventQueue$2.run(
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue.dispat
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
What Im trying to do, I have this array with this integers. when the user put in the Index Starting Point, and The Count. it will go thru the array removing those numbers.
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CountingConstant {
private JFrame MFrame;
private JPanel Jp;
private JTextField IT = new JTextField(25);
private JTextField CT = new JTextField(25);
private JButton button = new JButton("Begin");
private JLabel[] labels;
public CountingConstant()
{
labels = new JLabel[10];
MFrame = new JFrame("Pirate Constant Counting");
MFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MFrame.setSize(500,500);
MFrame.setVisible(true);
Jp = new JPanel();
Jp.setBackground(Color.yellow);
Jp.setLayout(new GridLayout(10,1));
labels[0] = new JLabel("0");
labels[1] = new JLabel("1");
labels[2] = new JLabel("2");
labels[3] = new JLabel("3");
labels[4] = new JLabel("5");
labels[5] = new JLabel("4");
labels[6] = new JLabel("7");
labels[7] = new JLabel("6");
labels[8] = new JLabel("9");
labels[9] = new JLabel("8");
for(int i = 0 ; i < labels.length; i++)
{
Jp.add(labels[i]);
}
Jp.add(IT);
Jp.add(CT);
button.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
int Indx = Integer.parseInt(IT.getText());
int Count = Integer.parseInt(CT.getText());
int changableLength = labels.length;
//Removes All ODD Numbers.
for(int i = 0; i < changableLength; i++)
{
Count = ( Indx + (Count-1) ) % changableLength;
labels[i].remove(Count);
Jp.remove(labels[Count]);
}
}
}
);
//Add Button To Panel
Jp.add(button);
//ADD Panel TO JFRAME
MFrame.add(Jp);
}
public static void main(String[] args) {
new CountingConstant();
}
}
remove this line:
it does not remove any lable - it removes maybe some child from instance of JLabel called
as this instnce has no children it may also cause error
labels[i].remove(Count);it does not remove any lable - it removes maybe some child from instance of JLabel called
labels[i] as this instnce has no children it may also cause error
This does not cause error any longer
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CountingConstant {
private JFrame MFrame;
private JPanel Jp;
private JTextField IT = new JTextField(25);
private JTextField CT = new JTextField(25);
private JButton button = new JButton("Begin");
private JLabel[] labels;
public CountingConstant()
{
labels = new JLabel[10];
MFrame = new JFrame("Pirate Constant Counting");
MFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MFrame.setSize(500,500);
MFrame.setVisible(true);
Jp = new JPanel();
Jp.setBackground(Color.yellow);
Jp.setLayout(new GridLayout(10,1));
labels[0] = new JLabel("0");
labels[1] = new JLabel("1");
labels[2] = new JLabel("2");
labels[3] = new JLabel("3");
labels[4] = new JLabel("5");
labels[5] = new JLabel("4");
labels[6] = new JLabel("7");
labels[7] = new JLabel("6");
labels[8] = new JLabel("9");
labels[9] = new JLabel("8");
for(int i = 0 ; i < labels.length; i++)
{
Jp.add(labels[i]);
}
Jp.add(IT);
Jp.add(CT);
button.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
int Indx = Integer.parseInt(IT.getText());
int Count = Integer.parseInt(CT.getText());
int changableLength = labels.length;
//Removes All ODD Numbers.
for(int i = 0; i < changableLength; i++)
{
Count = ( Indx + (Count-1) ) % changableLength;
// labels[i].remove(Count);
Jp.remove(labels[Count]);
// Jp.repaint();
}
}
}
);
//Add Button To Panel
Jp.add(button);
//ADD Panel TO JFRAME
MFrame.add(Jp);
}
public static void main(String[] args) {
new CountingConstant();
}
}ASKER
I printed Count and it comes out to 0 if i use index 7 , Count 110.
It remove some labels, but it giving a wrong solution. b/c using those index 7 and count 110. it should remove all the odd numbers only and even should remain.
but im a getting a result of 1,3,4,6,8 .
but i know using those numbers , should take out the odds number. when i do this on a console application. it works just fine.
labels[i].remove[Count]It remove some labels, but it giving a wrong solution. b/c using those index 7 and count 110. it should remove all the odd numbers only and even should remain.
but im a getting a result of 1,3,4,6,8 .
but i know using those numbers , should take out the odds number. when i do this on a console application. it works just fine.
ASKER
i did remove the
labels[i].remove[Count]>i did remove the
Good!
This line was not removing any labels - it was just weird thing to do, so in some cases (or maybe in all cases) it caused this error;
when I removed this line I no longer saw such error from your code.
And you should not see this error either.
This line
Jp.remove(labels[Count]);makes much more sense,
howvere waht you intended to do with that and waht you think you should see
on your frame, after you do it vs what you actually see - that's quite another
story, quite different than the issue with ArrayOutOfBounds exception
Do not know what was your goal, but this at least is removing some of them.
Of coure the numbers supplied are indexes of the array - not necessarily it removes
the same number as prinyed on the label.
Of coure the numbers supplied are indexes of the array - not necessarily it removes
the same number as prinyed on the label.
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CountingConstant {
private JFrame MFrame;
private JPanel Jp;
private JTextField IT = new JTextField(25);
private JTextField CT = new JTextField(25);
private JButton button = new JButton("Begin");
private JLabel[] labels;
private JPanel[] panels;
public CountingConstant()
{
labels = new JLabel[10];
panels = new JPanel[10];
Jp = new JPanel();
Jp.setBackground(Color.yellow);
Jp.setLayout(new GridLayout(10,1));
labels[0] = new JLabel("0");
labels[1] = new JLabel("1");
labels[2] = new JLabel("2");
labels[3] = new JLabel("3");
labels[4] = new JLabel("5");
labels[5] = new JLabel("4");
labels[6] = new JLabel("7");
labels[7] = new JLabel("6");
labels[8] = new JLabel("9");
labels[9] = new JLabel("8");
for(int i = 0 ; i < labels.length; i++)
{
panels[i] = new JPanel();
panels[i].add(labels[i]);
Jp.add(panels[i]);
}
Jp.add(IT);
Jp.add(CT);
Jp.add(button);
button.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
int Indx = Integer.parseInt(IT.getText());
int Count = Integer.parseInt(CT.getText());
int changableLength = labels.length;
panels[Indx].remove(labels[Indx]);
panels[Count].remove(labels[Count]);
Jp.repaint();
/*
//Removes All ODD Numbers.
for(int i = 0; i < changableLength; i++)
{
Count = ( Indx + (Count-1) ) % changableLength;
// labels[i].remove(Count);
panels[Count].remove(labels[Count]);
// panels[Count].repaint();
// Jp.repaint();
}
*/
}
}
);
MFrame = new JFrame("Pirate Constant Counting");
Container c = MFrame.getContentPane();
c.add(Jp);
MFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MFrame.setSize(500,500);
MFrame.setVisible(true);
//Add Button To Panel
// Jp.add(button);
//ADD Panel TO JFRAME
// MFrame.add(Jp);
}
public static void main(String[] args) {
new CountingConstant();
}
}ASKER
well i change the array into an ArrayList. i use the remove method . and it remove the 5 integers from the array. i know this b/c i print out the array size .
the only problem is now, is even tho it remove those integers, it still displaying those integers. The issue is removing the Jlabel corresponding to that integer that has been removed is what i still cant figure out.
the only problem is now, is even tho it remove those integers, it still displaying those integers. The issue is removing the Jlabel corresponding to that integer that has been removed is what i still cant figure out.
Look at the code I posted above ID:37228881 - I corrected some mistakes - and if you type in both boxes numbers - it will remove
some of the labels - actually the labels with the given iindexes in the array.
If you want to remove say odd's, or even's - it should not be difficult to figure out how to change.
some of the labels - actually the labels with the given iindexes in the array.
If you want to remove say odd's, or even's - it should not be difficult to figure out how to change.
ASKER
Yea that does not work i get the error what i originally started with.
like i said redid it with an arrayList. i just need to know now how to remove the Jlabel or replace it with asomething else that correspond to the Integer Index thas has been removed.
like i said redid it with an arrayList. i just need to know now how to remove the Jlabel or replace it with asomething else that correspond to the Integer Index thas has been removed.
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import java.util.ArrayList;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CountingConstant {
private JFrame MFrame;
private JPanel Jp;
private JTextField IT = new JTextField(25);
private JTextField CT = new JTextField(25);
private JButton button = new JButton("Begin");
private JLabel[] labels;
private JLabel Display = new JLabel();
private ArrayList<JLabel> ArrayLab;
public CountingConstant()
{
labels = new JLabel[10];
MFrame = new JFrame("Pirate Constant Counting");
MFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MFrame.setSize(500,500);
MFrame.setVisible(true);
Jp = new JPanel();
Jp.setBackground(Color.yellow);
ArrayLab = new ArrayList<JLabel>();
ArrayLab.add(0, new JLabel("0"));
ArrayLab.add(1, new JLabel("1"));
ArrayLab.add(2, new JLabel("2"));
ArrayLab.add(3, new JLabel("3"));
ArrayLab.add(4, new JLabel("5"));
ArrayLab.add(5, new JLabel("4"));
ArrayLab.add(6, new JLabel("7"));
ArrayLab.add(7, new JLabel("6"));
ArrayLab.add(8, new JLabel("9"));
ArrayLab.add(9, new JLabel("8"));
Jp.setLayout(new GridLayout(10,1));
for(int i = 0 ; i < ArrayLab.size(); i++)
{
Jp.add(ArrayLab.get(i));
}
Jp.add(IT);
Jp.add(CT);
button.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
int Indx = Integer.parseInt(IT.getText());
int Count = Integer.parseInt(CT.getText());
//Removes All ODD Numbers.
for(int i = 0; i < ArrayLab.size(); i++)
{
Count = ( Indx + (Count-1) ) % ArrayLab.size();
ArrayLab.remove(Count);
}
Display.setText(Integer.toString(ArrayLab.size()));
}
}
);
Jp.add(Display);
//Add Button To Panel
Jp.add(button);
//ADD Panel TO JFRAME
MFrame.add(Jp);
}
public static void main(String[] args) {
new CountingConstant();
}
}ASKER
Also the Count is used to iterate through the list , once it gets to the Count position , it removes that element of the array. ("It would be an odd numer"). and so on until end.
>Yea that does not work i get the error what i originally started with
but you chnaged it - use my code - it works
and your original werror was becsuse yiou were
renoving int from label - you already know that
but you chnaged it - use my code - it works
and your original werror was becsuse yiou were
renoving int from label - you already know that
ASKER
this is what im getting. with ur code
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfB
at countingconstant.CountingC
at javax.swing.AbstractButton
at javax.swing.AbstractButton
at javax.swing.DefaultButtonM
at javax.swing.DefaultButtonM
at javax.swing.plaf.basic.Bas
at java.awt.Component.process
at javax.swing.JComponent.pro
at java.awt.Component.process
at java.awt.Container.process
at java.awt.Component.dispatc
at java.awt.Container.dispatc
at java.awt.Component.dispatc
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.Container.dispatc
at java.awt.Window.dispatchEv
at java.awt.Component.dispatc
at java.awt.EventQueue.dispat
at java.awt.EventQueue.access
at java.awt.EventQueue$1.run(
at java.awt.EventQueue$1.run(
at java.security.AccessContro
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue$2.run(
at java.awt.EventQueue$2.run(
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue.dispat
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfB
at countingconstant.CountingC
at javax.swing.AbstractButton
at javax.swing.AbstractButton
at javax.swing.DefaultButtonM
at javax.swing.DefaultButtonM
at javax.swing.plaf.basic.Bas
at java.awt.Component.process
at javax.swing.JComponent.pro
at java.awt.Component.process
at java.awt.Container.process
at java.awt.Component.dispatc
at java.awt.Container.dispatc
at java.awt.Component.dispatc
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.Container.dispatc
at java.awt.Window.dispatchEv
at java.awt.Component.dispatc
at java.awt.EventQueue.dispat
at java.awt.EventQueue.access
at java.awt.EventQueue$1.run(
at java.awt.EventQueue$1.run(
at java.security.AccessContro
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue$2.run(
at java.awt.EventQueue$2.run(
at java.security.AccessContro
at java.security.AccessContro
at java.awt.EventQueue.dispat
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
where do you get this strange IDE that does not print you the most crucial line where error happens?
I just tried my code again (exactly as a pasted it) - if you put numbers into both windows and press begin it does not
make any error - try aagain
Don;'t leave any of the btwo boxes blank - we can address this later - at least we need to
be on the same page
Explain exactly waht you ar doing taht you are getting error - Ill repeat it.
I just tried my code again (exactly as a pasted it) - if you put numbers into both windows and press begin it does not
make any error - try aagain
Don;'t leave any of the btwo boxes blank - we can address this later - at least we need to
be on the same page
Explain exactly waht you ar doing taht you are getting error - Ill repeat it.
ASKER
im using netbeans. i put in the index number in the first textfield, and then put the count on the other textfield. then i press the begin button.
ASKER
is it the number im putting in? i put index 7, count 110
I don't know what you mean by these nubers, and what is count - I thought those are
indexes of lables - put there small nuimbers - say 2 and 3 - you'll see that two of the numbers
will disappear - make sure it works this way.
with 110 it obviously goes array out of bounds in one of these:
panels[Indx].remove(labels
panels[Count].remove(label
the main difficulty was to make these lables go away - and we'll esily produce correct number,
when you explain waht is the count.
For now make sure it works as i used it
indexes of lables - put there small nuimbers - say 2 and 3 - you'll see that two of the numbers
will disappear - make sure it works this way.
with 110 it obviously goes array out of bounds in one of these:
panels[Indx].remove(labels
panels[Count].remove(label
the main difficulty was to make these lables go away - and we'll esily produce correct number,
when you explain waht is the count.
For now make sure it works as i used it
Actually I was wrong - your stack trace now is good - I didn't notice - it has this line
at countingconstant.CountingC
thsi is waht I get when I put 110:
why I'm getting at line 72 and you at line 78 - you
modified the code ?
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfB
at CountingConstant$1.actionP
at javax.swing.AbstractButton
at javax.swing.AbstractButton
at javax.swing.DefaultButtonM
at javax.swing.DefaultButtonM
at javax.swing.plaf.basic.Bas
at java.awt.Component.process
at javax.swing.JComponent.pro
at java.awt.Component.process
at java.awt.Container.process
at java.awt.Component.dispatc
at java.awt.Container.dispatc
at java.awt.Component.dispatc
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.LightweightDispat
at java.awt.Container.dispatc
at java.awt.Window.dispatchEv
at java.awt.Component.dispatc
at java.awt.EventQueue.dispat
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
at java.awt.EventDispatchThre
ASKER
Yes it does work when i put in 1 and 2 and it removes it.
but i will explain this better. what im trying to accomplish
i have 10 integers in an array. 0- 9 in different order. 0,1,2,3,5,4,7,6,9,8
2 textfield - Starting Index position in the array
Count - iterate through the array looping over and over , (0-9,0-9, etc)
Example :
Index starting position is : 7
Count: 110
so i start at index 7 of the array, then go around the array 110 times. and stop, delete that index, ( in this case 7 is first index gets deleted. then new starting index is at 4, go around the 110 times, stops at 9, deletes. and so on, until all odd numbers get deleted.)
but i will explain this better. what im trying to accomplish
i have 10 integers in an array. 0- 9 in different order. 0,1,2,3,5,4,7,6,9,8
2 textfield - Starting Index position in the array
Count - iterate through the array looping over and over , (0-9,0-9, etc)
Example :
Index starting position is : 7
Count: 110
so i start at index 7 of the array, then go around the array 110 times. and stop, delete that index, ( in this case 7 is first index gets deleted. then new starting index is at 4, go around the 110 times, stops at 9, deletes. and so on, until all odd numbers get deleted.)
>go around the array 110 times
what thsi means?
then to determine the index to delete you'll do something liek that:
(7 +110)%10 = 7
the
(4 + 110)%9 = 6 (why do you have 4 - you now have only 9 left).
But anyway - not that it deeletes labels go ahaeda and implement these
numbers play as you want it - your numbers should refere in the end
to original index in the original array
what thsi means?
then to determine the index to delete you'll do something liek that:
(7 +110)%10 = 7
the
(4 + 110)%9 = 6 (why do you have 4 - you now have only 9 left).
But anyway - not that it deeletes labels go ahaeda and implement these
numbers play as you want it - your numbers should refere in the end
to original index in the original array
ASKER
(4 + 110)%9 = 6 (why do you have 4 - you now have only 9 left).
0 1 2 3 5 4 <------- ( once 7 gets removed , Index shifts one back which is 4) 6 9 8
Given my solution, is there a way to delete the labels as well?
0 1 2 3 5 4 <------- ( once 7 gets removed , Index shifts one back which is 4) 6 9 8
Given my solution, is there a way to delete the labels as well?
ASKER
or if i cant delete them, can i just hide those labels with an empty string ?
Given my solution, is there a way to delete the labels as well?
what is the question ? - once you determine the index -
just do this Jp.remove(...) - what is the problem ?
what is the question ? - once you determine the index -
just do this Jp.remove(...) - what is the problem ?
but you can delete labels - you see yu are removing them - don't understand what is the problem
Just make sure that you detemrin the index correctly within the range, and then remove label - not Jp.remove() - I was wring with that
but with panels[indx].remove(labels
but with panels[indx].remove(labels
ASKER
K i try using panels[indx].remove(labels
Exception in thread "AWT-EventQueue-0" java.lang.IndexOutOfBounds
but what i need to remove is what count lands on.
but i replace [indx] with [Count] but it just does not do anything. the arraylist did remove those 5 . but the jlabels remain the same still.
Exception in thread "AWT-EventQueue-0" java.lang.IndexOutOfBounds
but what i need to remove is what count lands on.
but i replace [indx] with [Count] but it just does not do anything. the arraylist did remove those 5 . but the jlabels remain the same still.
button.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvente)
{
int Indx = Integer.parseInt(IT.getText());
int Count = Integer.parseInt(CT.getText());
//Removes All ODD Numbers.
for(int i = 0; i < ArrayLab.size(); i++)
{
Count = ( Indx + (Count-1) ) % ArrayLab.size();
ArrayLab.remove(Count);
panels[Count].remove(ArrayLab.get(Count));
panels[Count].repaint();
}
Display.setText(Integer.toString(ArrayLab.size()));
}
}
);
Look I don't want to go back - we alread have the code which removes and works - we ned just to calulate uindex which you want to remove
IIt is true ArrayList is in general better than Array, but once we already have it working with arrays no sense to go back wit removal part
So I suggest to return to the code whwere deleteing was working.
to claculate correct numbers is always more simple.
OK, once again - explain to me the process, so if I enetered
Indx 7 and Count 110 then I should remove array element (7 +110 ) % 10
that I understand.
Waht happenes next - should i stop and wait for the next input of the user or not ?
IIt is true ArrayList is in general better than Array, but once we already have it working with arrays no sense to go back wit removal part
So I suggest to return to the code whwere deleteing was working.
to claculate correct numbers is always more simple.
OK, once again - explain to me the process, so if I enetered
Indx 7 and Count 110 then I should remove array element (7 +110 ) % 10
that I understand.
Waht happenes next - should i stop and wait for the next input of the user or not ?
ASKER
what happens next is . once u remove the array elements. the one previous element is the new starting index. same process again. at count 110 . remove element. new index starting position is previous element to count.
all this is done in a for loop.
so you have initial index which is 7. then after, index will always be one previous to count. ( 7 +(110-1) % array length.
i have it as a console application. it will show what it does.
all this is done in a for loop.
so you have initial index which is 7. then after, index will always be one previous to count. ( 7 +(110-1) % array length.
i have it as a console application. it will show what it does.
import java.util.ArrayList;
/**
*
* @author Alexander
*/
public class Constant {
public static void main(String[] args) {
ArrayList<Integer> num = new ArrayList<Integer>();
num.add(0, 0);
num.add(1, 1);
num.add(2,2);
num.add(3,3);
num.add(4,5);
num.add(5,4);
num.add(6,7);
num.add(7,6);
num.add(8,9);
num.add(9,8);
int ii = 7;
ii = (ii + (110-1) ) % num.size();
num.remove(ii);
ii = (ii + (110 - 1) ) % num.size();
num.remove(ii);
ii = (ii + (110- 1) ) % num.size();
num.remove(ii);
ii = (ii + (110-1) ) % num.size();
num.remove(ii);
ii = (ii + (110-1) ) % num.size();
num.remove(ii);
//Print remaining elements in array.
System.out.println(num);
}
}
OK, try this.
I'm still not sure what you want.
I straightend out the order of indexes in thebeginnig array
- don't know whenether you had it on purpose 5 before 4 etc.
and now when you pu 7, 110 - the left side goes away.
If you put odd count, say 7, 109 than right side will disappear
I'm still not sure what you want.
I straightend out the order of indexes in thebeginnig array
- don't know whenether you had it on purpose 5 before 4 etc.
and now when you pu 7, 110 - the left side goes away.
If you put odd count, say 7, 109 than right side will disappear
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import java.util.ArrayList;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CountingConstant {
private JFrame MFrame;
private JPanel Jp;
private JTextField IT = new JTextField(25);
private JTextField CT = new JTextField(25);
private JButton button = new JButton("Begin");
private JLabel[] labels;
private JPanel[] panels;
public CountingConstant()
{
labels = new JLabel[10];
panels = new JPanel[10];
Jp = new JPanel();
Jp.setBackground(Color.yellow);
Jp.setLayout(new GridLayout(10,1));
labels[0] = new JLabel("0");
labels[1] = new JLabel("1");
labels[2] = new JLabel("2");
labels[3] = new JLabel("3");
labels[4] = new JLabel("4");
labels[5] = new JLabel("5");
labels[6] = new JLabel("6");
labels[7] = new JLabel("7");
labels[8] = new JLabel("8");
labels[9] = new JLabel("9");
for(int i = 0 ; i < labels.length; i++)
{
panels[i] = new JPanel();
panels[i].add(labels[i]);
Jp.add(panels[i]);
}
Jp.add(IT);
Jp.add(CT);
Jp.add(button);
button.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
int Indx = Integer.parseInt(IT.getText());
int Count = Integer.parseInt(CT.getText());
int changableLength = labels.length;
for(int i = 0; i < changableLength; i++)
{
Count = ( Indx + (Count-1) ) % changableLength;
panels[Count].remove(labels[Count]);
}
Jp.repaint();
}
}
);
MFrame = new JFrame("Pirate Constant Counting");
Container c = MFrame.getContentPane();
c.add(Jp);
MFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MFrame.setSize(500,500);
MFrame.setVisible(true);
//Add Button To Panel
// Jp.add(button);
//ADD Panel TO JFRAME
// MFrame.add(Jp);
}
public static void main(String[] args) {
new CountingConstant();
}
}ASKER
yea i did put the order index like that on purpose.
0 1 2 3 5 4 7 5 9 8 . <-------- this becomes ----------> 0 2 4 6 8
the formula Count = ( indx + (Count-1)) % Array.size will get rid of the odd numbers.
0 1 2 3 5 4 7 5 9 8 . <-------- this becomes ----------> 0 2 4 6 8
the formula Count = ( indx + (Count-1)) % Array.size will get rid of the odd numbers.
Well than change them back - does it do what you want then ?
ASKER
so if we have
0 1 2 3 5 4 7 6 9 8
if we start 0 1 2 3 5 4 7 <----- Starting Index
the count is 110 . so if start 7 , go through array 110 times. eventually u land on indx 7 (gets removed.)
starting new index is 4 , go through array 110 times again. land. on indx 8 , removes.
this keeps going until all odd elements indx has been removed.
that is all i want the program to do.
0 1 2 3 5 4 7 6 9 8
if we start 0 1 2 3 5 4 7 <----- Starting Index
the count is 110 . so if start 7 , go through array 110 times. eventually u land on indx 7 (gets removed.)
starting new index is 4 , go through array 110 times again. land. on indx 8 , removes.
this keeps going until all odd elements indx has been removed.
that is all i want the program to do.
ASKER
i mean it is removing the labels. but it is still removing the wrong indexes.
i know this formula works. like i said , it works if you do it in a console application
i know this formula works. like i said , it works if you do it in a console application
OK, lets' count
Count = ( Indx + (Count-1) ) % changableLength
on the fisrt iteration
Count = (7 + 109) % 10 = 6
we remove number with index 6, which has label 7
now Count = 6, Indx = 7
Count = (7 + 5 ) % 10 = 2
so it removes lable with index 2, which has label 2
then Count = 2, Indx = 7
Count = (7 + 1) % 10 = 8
so it removes lable with index 8 , which has label 9
Count = 8, Indx = 7
Count = (7 + 7) % 10 = 4
so it removes lable with index 4 , which has label 5
Count = 4 Indx = 7
Count = (7 + 3) % 10 = 0 which has label 0
so it removes the whole left side - labels 7,2, 9, 5, 0
That is exactly what it is doing - what else coudl it do ?
Count = ( Indx + (Count-1) ) % changableLength
on the fisrt iteration
Count = (7 + 109) % 10 = 6
we remove number with index 6, which has label 7
now Count = 6, Indx = 7
Count = (7 + 5 ) % 10 = 2
so it removes lable with index 2, which has label 2
then Count = 2, Indx = 7
Count = (7 + 1) % 10 = 8
so it removes lable with index 8 , which has label 9
Count = 8, Indx = 7
Count = (7 + 7) % 10 = 4
so it removes lable with index 4 , which has label 5
Count = 4 Indx = 7
Count = (7 + 3) % 10 = 0 which has label 0
so it removes the whole left side - labels 7,2, 9, 5, 0
That is exactly what it is doing - what else coudl it do ?
ASKER
Count is always Constant = 110.
and % 10 <---- this needs to be changining as the arrayList gets smaller.
and % 10 <---- this needs to be changining as the arrayList gets smaller.
ASKER
k i have to apologize . i wrote the formula wrong
its suppose to be indx = (Indx + (Count-1) % Array.Size
to give an idea of the output. i printed out the results from my console version .
Starting Index: 7 ArraySize: 10
ELement: 7 has been removed
Starting Index: 6 ArraySize: 9
ELement: 9 has been removed
Starting Index: 7 ArraySize: 8
ELement: 5 has been removed
Starting Index: 4 ArraySize: 7
ELement: 1 has been removed
Starting Index: 1 ArraySize: 6
ELement: 3 has been removed
Starting Index: 2 ArraySize: 5
Remaining Elements in the Array: [0, 2, 4, 6, 8]
Now im trying to replicate this with this gui i have .
its suppose to be indx = (Indx + (Count-1) % Array.Size
to give an idea of the output. i printed out the results from my console version .
Starting Index: 7 ArraySize: 10
ELement: 7 has been removed
Starting Index: 6 ArraySize: 9
ELement: 9 has been removed
Starting Index: 7 ArraySize: 8
ELement: 5 has been removed
Starting Index: 4 ArraySize: 7
ELement: 1 has been removed
Starting Index: 1 ArraySize: 6
ELement: 3 has been removed
Starting Index: 2 ArraySize: 5
Remaining Elements in the Array: [0, 2, 4, 6, 8]
Now im trying to replicate this with this gui i have .
ASKER
k by fixing the formula is now working. but i have one thing that i still needed it to do , and that is,.
is there a way to slow down the for loop ( in other words , pause for certain amount of seconds, after each loop? ) if this is possible at all?
i try doing it without the forloop , but then i start given an incorrect solution.
is there a way to slow down the for loop ( in other words , pause for certain amount of seconds, after each loop? ) if this is possible at all?
i try doing it without the forloop , but then i start given an incorrect solution.
what is Array.Size
Please refer always to the code in
ID:37230161
so that we speak abou the same things
but Array.Size does not make sense to me with respect to any variant of code
and this formula has no matching parentheses
indx = (Indx + (Count-1) % Array.Size
and also indx and Indx - two different things ?
so I still can't understand this formula
Please refer always to the code in
ID:37230161
so that we speak abou the same things
but Array.Size does not make sense to me with respect to any variant of code
and this formula has no matching parentheses
indx = (Indx + (Count-1) % Array.Size
and also indx and Indx - two different things ?
so I still can't understand this formula
ASKER
ArrayLab.size()
Indx = ( Indx + (Count-1) ) % ArrayLab.size();ASKER
the formula determines the next starting index position . in the array.
Please, refer to code:
ID:37230161
it does not have any ArrayLab
ASKER CERTIFIED SOLUTION
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ASKER
i use the formula in your code, and it is not removing the right one. that why i had to use the one i have.
everything is working now. The only thing i have left is , Can I slow , or pause, or delay the for loop to see the removing of each element?
or i end the post now, and create a new one if you want?
everything is working now. The only thing i have left is , Can I slow , or pause, or delay the for loop to see the removing of each element?
or i end the post now, and create a new one if you want?
Sorry, no matter what I did, I could not make them disappear one by one.
It all goes through and then changes everything.
have no idea why it is doing so.
Seems, I have done similar things many times.
But probably I was always doing it my normal way.
Open another question, post your code, maybe someone could help you.
It all goes through and then changes everything.
have no idea why it is doing so.
Seems, I have done similar things many times.
But probably I was always doing it my normal way.
Open another question, post your code, maybe someone could help you.
ASKER
alright thanks for the help.
what this means:
Open in new window
you are removint int frm Label - strange ?
perhaps Count is negative.
Print it befire this line