Hashing with jTable

hi,
I am doing a media player project and I have got stuck when trying to code for the option "Remove Duplicate Entries". I am using jTable, and I have written the code to add it to the hash, but I dont know how to get it back... My code is as following..
private void RemdupentriesActionPerformed(java.awt.event.ActionEvent evt) {
        int rcnt = jTable1.getRowCount();
        HashSet hash = new HashSet();
        for(int i = 0; i < rcnt; i++){
            hash.add(jTable1.getValueAt(i,1));
    }         can anyone pls help me out of this. In the above code, i represents the row value and 1 is the second column, where I store the absolute path of the song that is been played...
Message was edited by:
Spanian

thank u for the support..,
I have completed it...
my code is as follows..
private void RemdupentriesActionPerformed(java.awt.event.ActionEvent evt) {
        int rcnt = jTable1.getRowCount();
        LinkedHashSet<String> hash = new LinkedHashSet<String>();
        for(int i = 0; i < rcnt; i++){
            hash.add((String)jTable1.getValueAt(i,1));
        for(int i = 0; i < rcnt; i++)
            ((DefaultTableModel)jTable1.getModel()).removeRow(0);
        for(String cur : hash) {
            String name = cur.substring(cur.lastIndexOf(File.separatorChar));
            ((DefaultTableModel)jTable1.getModel()).addRow(new String [] {name, cur, "", ""});
    }

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Hi,
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Hi,
Seems u r new to progrmming.Well u used Jbuilder to write.U wrote good debug statments but forgot to write deubg statment or printstacktrace in excpetions.
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int numColumns=rmeta.getColumnCount();
if( !firstTime){
for(int i=1;i<=numColumns;++i)
if(i<=numColumns )
defaulttablemodel.addColumn(rmeta.getColumnName(i));
firstTime=true;
while(rs.next())
for(int i=1;i<=numColumns;++i)
if(i<=numColumns)
tempname = rs.getString(i);
tempcnt=i-1;
data[tempcnt] = tempname;
defaulttablemodel.addRow(data);
catch(Exception ex)
System.out.println("***********************"+ex);
p1.add(new JScrollPane(jtable));
public static void main(String[] args){
     new Frame1();
//------------------------------------------------------------ End showpane1 ------------
//=========================================================== START MenuItemHandler ======
class MenuItemHandler implements ActionListener
public void actionPerformed(ActionEvent ev)
String s=ev.getActionCommand();
if(s=="Exit")
System.exit(0);
else if (s=="Preview")
/**Overridden so we can exit when window is closed*/
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
System.exit(0);
void jButton1_actionPerformed(ActionEvent e) {
jLabel1.setText(jTxtTest.getText());
showpane1();
jPanel1.add(p1);
contentPane.repaint();
sreeni,
[email protected]

Another problem with JTable

Hi,
I have encountered a problem with JTable, i am trying to display some 15 columns and their values , one of the columns value is null, then the JTable is not displaying its value from this column(which is with null value) onwards.
Can anybody assiss me in this matter.
Regards
khiz_eng

I don't know If I can fix your problem, but
I know just that it works on my PC.... It's very very
slow... I don't know how to insert PageSetUp option... I have to study the problem.....
However I don't think it's a hard problem....
I want ask to you if you have found some problems when you are in Editing mode in a cell.....
in the jdk1.2 version I could save while was in editing mode using the editingStopped method.
It permit to update all data .... also the data in the cell I was editing.
in the jdk 1.3 if I use this method It doesn't work properly... It maybe destroy the content object in the Cell..... because I'm able to print all the table except the editing cell (it throw an exception...)
What's changed????
I don't know...
Can u help me?

Problem hotspot with Jtable

i am sorry may english, my English is not very good, my natural language is Spanish.
I am using jtable, i beginning it with elements null and i fill it after. But when i am going to fill it i get the next error
Java VM: Java HotSpot(TM) Client VM (1.4.0-b92 mixed mode)
# Error ID: 434F444523414348450E43505000BE
# Problematic Thread: prio=7 tid=0x0AB83010 nid=0x7f8 runnable
but i use -server for running, then i don`t get the error.
somebory can help me.

here is the complete class.
I call first the method
iniciaTablaVector(
boolean puede_editar,
boolean puede_sortear,
boolean puede_seleccionar)
after i get the data from the database and add them into the vectors i call
the method
asignaDatosTabla(java.util.Vector vector_campos_usar,
java.util.Vector vector_campos_usar_i,
java.util.Vector vector_datos,
java.util.Vector vector_datos_campos)
package version01;
* TITULOS: Programas Boca
* DESCRIPCION Programas Generales
* DERECHO RESERVADO Derechos reservado 2001
* COMPANIA Sistemas Boca
* @AUTORES Jos� Alberto Felipe y Jos� Luis Marte
* @VERSION 1.0
public class ManejoTablaVector02 //extends javax.swing.JTable
javax.swing.JTable vista_tabla;
miModeloTabla mimodelotabla;
private boolean DEBUG = true;
private boolean PUEDE_SEL_COLUMNA = false;
private boolean PUEDE_SEL_FILA = true;
private int fila_sel;
java.awt.Container frame_usar;
ManejoParametros manejoparametros;
java.util.Vector vector_columnas, vector_campos_usar,vector_campos_usar_i;
java.util.Vector vector_datos,vector_datos_campos ;
javax.swing.JComponent[] campos;
java.util.Vector vector_campos;
java.util.TreeMap map_campos;
ManejoPantalla manejopantalla;
javax.swing.ListSelectionModel modelo_fila_sel;
boolean puede_editar;
boolean puede_sortear;
boolean puede_seleccionar;
//Object[] valores_largo;
//Class[] clase_columnas;
java.util.Vector valores_largo;
java.util.Vector clase_columnas;
public ManejoTablaVector02(java.awt.Container frame_usar,
ManejoParametros manejoparametros,
// java.util.Vector vector_datos,
// java.util.Vector vector_datos_campos,
// java.util.Vector vector_campos_usar,
// java.util.Vector vector_campos_usar_i,
javax.swing.JComponent[] campos,
java.util.Vector vector_campos,
java.util.TreeMap map_campos)
this.frame_usar = frame_usar;
this.manejoparametros = manejoparametros;
/* this.vector_campos_usar = vector_campos_usar;
this.vector_campos_usar_i = vector_campos_usar_i;
if (manejoparametros.datos_leidos_tablas == null)
manejoparametros.datos_leidos_tablas = new java.util.Vector();
if (manejoparametros.datos_leidos_campos == null)
manejoparametros.datos_leidos_campos = new java.util.Vector();
// this.vector_datos =
// manejoparametros.datos_leidos_tablas;
// this.vector_datos_campos =
// manejoparametros.datos_leidos_campos;
this.campos = campos;
this.vector_campos = vector_campos;
this.map_campos = map_campos;
// obtieneEncabezadoTabla();
// asignaDatosCamposIniciales();
// obtieneColumnasTabla();
//public javax.swing.JTable iniciaTablaVector(
public void iniciaTablaVector(
boolean puede_editar,
boolean puede_sortear,
boolean puede_seleccionar)
this.puede_editar = puede_editar;
this.puede_sortear = puede_sortear;
this.puede_seleccionar = puede_seleccionar;
// Instead of making the table display the data as it would normally with:
// JTable vista_tabla = new JTable(dataModel);
// Add a sorter, by using the following three lines instead of the one above.
//va TableSorter sorter = new TableSorter(dataModel);
vista_tabla= new javax.swing.JTable();
/*Desabilita el manejo de columna de la tabla para manejarlo manual*/
vista_tabla.setAutoCreateColumnsFromModel(false);
manejopantalla = new ManejoPantalla();
obtieneColumnasTabla();
this.vector_datos =
manejoparametros.datos_leidos_tablas;
this.vector_datos_campos =
manejoparametros.datos_leidos_campos;
iniciaVectorDatos();
mimodelotabla = new miModeloTabla();
/* mimodelotabla = new miModeloTabla(
manejoparametros,
vector_columnas,
vector_datos,
vector_datos_campos,
campos,
vector_campos,
map_campos,
manejopantalla);
vista_tabla.setModel(mimodelotabla);
configuraColumna(vista_tabla);
asignaEscuchadores();
// asignaAnchoColumnas(vista_tabla, mimodelotabla);
// asignaEscuchadores();
// Crear a modelo de tabla.
class miModeloTabla extends javax.swing.table.AbstractTableModel
java.util.Vector vector_columnas;
java.util.Vector vector_campos_usar,
vector_campos_usar_i;
java.util.Vector vector_datos,vector_datos_campos;
javax.swing.JComponent[] campos;
java.util.Vector vector_campos;
java.util.TreeMap map_campos;
ManejoPantalla manejopantalla;
ManejoParametros manejoparametros;
public miModeloTabla(ManejoParametros manejoparametros,
java.util.Vector vector_columnas,
java.util.Vector vector_datos,
java.util.Vector vector_datos_campos,
javax.swing.JComponent[] campos,
java.util.Vector vector_campos,
java.util.TreeMap map_campos,
ManejoPantalla manejopantalla)
this.manejoparametros = manejoparametros;
this.vector_columnas = vector_columnas;
// this.vector_campos_usar = vector_campos_usar;
// this.vector_campos_usar_i = vector_campos_usar_i;
this.vector_datos = vector_datos;
this.vector_datos_campos = vector_datos_campos;
this.campos = campos;
this.vector_campos = vector_campos;
this.map_campos = map_campos;
this.manejopantalla = manejopantalla;
// javax.swing.table.TableModel dataModel =
// new javax.swing.table.AbstractTableModel()
// These methods always need to be implemented.
/* Para asignar los anchos de la columna
Se pueden asignar por el la columna que tenga mas tama�o
public final Object[] valores_largo = {"Angela", "Andrews",
"esto es mas que una prueba","prueba",
"prueba","prueba","prueba","prueba","N"};*/
class miModeloTabla extends javax.swing.table.AbstractTableModel
public int getColumnCount()
return vector_columnas.size();
public int getRowCount()
return vector_datos==null ? 0 : vector_datos.size();
public Object getValueAt(int row, int col)
int total_columna = ((java.util.Vector)
(vector_datos.elementAt(row))).size() + 1;
if (total_columna > col)
return ((java.util.Vector)
(vector_datos.elementAt(row))).elementAt(col);
}else
return null;
// The default implementations of these methods in
// AbstractTableModel would work, but we can refine them.
public String getColumnName(int columna)
String indice_str =(String)
((Object[])vector_columnas.elementAt(columna))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
return (String)((Object[])
vector_campos.elementAt(indice_vector_campos))[3];
public Class getColumnClass(int columna)
// {return getValueAt(0,columna).getClass();}
String indice_str =(String)
((Object[])vector_columnas.elementAt(columna))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
return (Class)obtieneTipoColumna(
(String)((Object[])
vector_campos.elementAt(indice_vector_campos))[29]);
public boolean isCellEditable(int fila, int columna)
if (puede_editar)
String indice_str =(String)
((Object[])vector_columnas.elementAt(columna))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
if (((String)
((Object[])
vector_campos.elementAt(
indice_vector_campos))[18]).equals("true"))
return true;
else
return false;
}else return false;
/* public void setValueAt(Object aValue, int fila, int columna)
if (puede_editar)
((java.util.Vector)
(vector_datos.elementAt(fila))).elementAt(columna) = aValue;
fireTableCellUpdated(fila, columna);
// public static void main(String[] args) {
// new TableExample3();
//final de clase
public void asignaDatosTabla(java.util.Vector vector_campos_usar,
java.util.Vector vector_campos_usar_i,
java.util.Vector vector_datos,
java.util.Vector vector_datos_campos)
this.vector_campos_usar = vector_campos_usar;
this.vector_campos_usar_i = vector_campos_usar_i;
this.vector_datos = vector_datos;
this.vector_datos_campos = vector_datos_campos;
// asignaDatosCamposIniciales();
// mimodelotabla.fireTableDataChanged();
// configuraColumna(vista_tabla);
// javax.swing.table.TableModel modelo = vista_tabla.getModel();
mimodelotabla.fireTableDataChanged();
// vista_tabla.repaint();
vista_tabla.requestFocus();
javax.swing.ListSelectionModel listseleccion = vista_tabla.getSelectionModel();
listseleccion.setLeadSelectionIndex(0);
vista_tabla.setSelectionModel(listseleccion);
//javax.swing.ListSelectionModel lsm =
// (javax.swing.ListSelectionModel)e.getSource();
// asignaEscuchadores();
public void iniciaVectorDatos()
java.util.Vector vectornulo;
manejoparametros.datos_leidos_tablas.clear();
if (!vector_columnas.isEmpty())
for(int i=0;i<30;i++)
vectornulo = new java.util.Vector();
for (int j = 0;j<vector_columnas.size();j++)
vectornulo.addElement(null);
vector_datos.addElement(vectornulo);
private void asignaEscuchadores()
vista_tabla.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
if (puede_seleccionar) { // true by default
modelo_fila_sel = vista_tabla.getSelectionModel();
modelo_fila_sel.addListSelectionListener(
new javax.swing.event.ListSelectionListener() {
public void valueChanged(
javax.swing.event.ListSelectionEvent e)
javax.swing.ListSelectionModel lsm =
(javax.swing.ListSelectionModel)e.getSource();
int fila_sel = lsm.getMinSelectionIndex();
// DEBO BUSCAR UNA FORMA DE DETERMINAR SI EL VECTOR DE CAMPOS TIENE DATOS
if (!vector_datos_campos.isEmpty())// !=null)
manejopantalla.asignaDatosPantalla(
(java.util.TreeMap)
vector_datos_campos.elementAt(fila_sel),
campos,
vector_campos);
/*Aqui funcionan para cambiar los campos de arriba de la forma
que esta abajo
((javax.swing.JTextField)campos[0]).setText(
(String)vista_tabla.getValueAt(fila_sel,0));
((javax.swing.JTextField)campos[1]).setText((String)vista_tabla.getValueAt(fila_sel,1));
//v if (lsm.isSelectionEmpty()) {
//v System.out.println("No rows are selected.");
//v } else {
//v int selectedRow = lsm.getMinSelectionIndex();
//v System.out.println("Row " + selectedRow
//v + " is now selected.");
//v }
} else {
vista_tabla.setRowSelectionAllowed(false);
vista_tabla.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
fila_sel = vista_tabla.getSelectedRow();
if (e.getClickCount() ==2)
asignaDatosSeleccionados(fila_sel);
salirPrograma();
// System.out.println("FILA SEL --> " + fila_sel);
/*Aqui va chequeo de seleccion
((javax.swing.JTextField)campos[0]).setText((String)vista_tabla.getValueAt(fila_sel,0));
((javax.swing.JTextField)campos[1]).setText((String)vista_tabla.getValueAt(fila_sel,1));
vista_tabla.addKeyListener(new java.awt.event.KeyAdapter()
public void keyPressed(java.awt.event.KeyEvent e)
// char c = e.getKeyChar();
int keycode = e.getKeyCode();
if (keycode == 10)
fila_sel = vista_tabla.getSelectedRow();
asignaDatosSeleccionados(fila_sel);
salirPrograma();
// System.out.println("FILA SEL --> " + fila_sel);
public void configuraColumna(javax.swing.JTable tabla)
int tamano;
for (int i=0;i<vector_columnas.size();i++)
String indice_str =(String)
((Object[])vector_columnas.elementAt(i))[1];
int indice_vector_campos = Integer.parseInt(indice_str);
/*Aqui se asigna en render de cada celda esto permite
fijar el font de las celdas, el borde, fijar, estado
colores,etc. Debo crear uno propio para tener mas control*/
javax.swing.table.DefaultTableCellRenderer
renderer = new javax.swing.table.DefaultTableCellRenderer();
/*Debo agregar un campo en el archivo de configuracion para
saber como voy alinear el campo (derecha,izquierda,centro)*/
renderer.setHorizontalAlignment(renderer.LEFT);
//javax.swing.JLabel.LEFTNTER_ALIGNMENT);
// renderer.setText((String)((Object[])
// vector_campos.elementAt(
// indice_vector_campos))[3]);
if (!UtilitariosGenerales.isCampoBlanco(((String)((Object[])
vector_campos.elementAt(
indice_vector_campos))[26])))
tamano = Integer.parseInt(((String)((Object[])
vector_campos.elementAt(
indice_vector_campos))[26]));
}else
tamano = 10;
/*Debo crear mi propio tipo de editor de celdas, para formatear
los datos debo llamarlo aqui, ahi tomo en cuenta el tipo de
datos que voy a usar (JCombo, JcheckBox, JTextField)*/
javax.swing.table.TableCellEditor editor;
if (
/* ((String)((Object[])
vector_campos.elementAt(indice_vector_campos))[2]).equals("JCheckBox")
((String)((Object[])
vector_campos.elementAt(indice_vector_campos))[29]).equals("Boolean")
javax.swing.JCheckBox checkbox = new javax.swing.JCheckBox();
editor = new javax.swing.DefaultCellEditor(checkbox);
else
javax.swing.JTextField jtextfield = new javax.swing.JTextField();
editor = new javax.swing.DefaultCellEditor(jtextfield);
javax.swing.table.TableColumn columna = new
javax.swing.table.TableColumn(
i,tamano,renderer,editor);
tabla.addColumn(columna);
public void obtieneColumnasTabla()
vector_columnas = new java.util.Vector();
int indice_vector;
String[] informacion_columna;
for (int i=0;i<vector_campos.size();i++)
if (!
((String)((Object[])vector_campos.elementAt(i))[2]).equals(
"JTable"))
continue;
informacion_columna = new String[2];
informacion_columna[0] = (String)((Object[])vector_campos.elementAt(i))[3];
informacion_columna[1] = String.valueOf(i);
vector_columnas.addElement(informacion_columna);
public Object obtieneTipoColumna(String tipo_columna)
String[] arreglo_tipo = {"String","Long","Integer","Double","Boolean"};
int i = java.util.Arrays.binarySearch(arreglo_tipo,tipo_columna);
switch (i)
case 0:
return String.class;
case 1:
return Long.class;
case 2:
return Integer.class;
case 3:
return Double.class;
case 4:
return Boolean.class;
default:
return String.class;
class FormattedCellRenderer extends javax.swing.table.DefaultTableCellRenderer
     protected java.text.Format m_format;
     public FormattedCellRenderer(java.text.Format format) {
          m_format = format;
     public java.awt.Component getTableCellRendererComponent(
javax.swing.JTable table,
          Object value, boolean isSelected, boolean hasFocus,
          int nRow, int nCol)
          return super.getTableCellRendererComponent(table,
               value==null ? null : m_format.format(value),
               isSelected, hasFocus, nRow, nCol);
class FormattedCellEditor extends javax.swing.DefaultCellEditor
     public FormattedCellEditor(final javax.swing.JFormattedTextField
               formattedTextField) {
          super(formattedTextField);
System.out.println(delegate);
          formattedTextField.removeActionListener(delegate);
          delegate = new EditorDelegate() {
               public void setValue(Object value) {
                    formattedTextField.setValue(value);
               public Object getCellEditorValue() {
                    return formattedTextField.getValue();
          formattedTextField.addActionListener(delegate);
          formattedTextField.setBorder(null);
public void asignaDatosSeleccionados(int fila)
if (fila >=0 && fila < vector_datos.size())
manejoparametros.isSeleccionada = true;
java.util.TreeMap map_datos_sel = new java.util.TreeMap();
int indice_vector;
int total_tabla=-1;
int total_campos = -1;
for (int i=0;i<vector_campos_usar.size();i++)
// String[] arreglo_campo_usar = new String[2];
// arreglo_campo_usar = (String[])vector_campos_usar.elementAt(i);
// indice_vector = Integer.parseInt(arreglo_campo_usar[0]);
/*AQUI DEBO CLASIFICAR SI ES FIJO O ES DE LA TABLA*/
if (!
((String)((Object[])vector_campos_usar_i.elementAt(i))[2]).equals(
"JTable"))
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos_usar_i.elementAt(i))[28]) ) &&
!((String)((Object[])vector_campos_usar_i.elementAt(i))[40]).equals(
"true"))
if (!map_datos_sel.containsKey(
((Object[])vector_campos_usar_i.elementAt(i))[28]))
total_campos++;
Object valores = ((java.util.TreeMap)
vector_datos_campos.elementAt(fila)).get(
((Object[])vector_campos_usar_i.elementAt(
i))[28]);
map_datos_sel.put( ((Object[])vector_campos_usar_i.elementAt(i))[28],
valores);
// ((java.util.Vector)
// vector_datos_campos.elementAt(fila)).elementAt(total_campos) );
// continue;
for (int i =0;i<vector_campos.size();i++)
if (
((String)((Object[])vector_campos.elementAt(i))[2]).equals(
"JTable"))
total_tabla++;
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos.elementAt(i))[28]) ))
if (!map_datos_sel.containsKey(
((Object[])vector_campos.elementAt(i))[28]))
map_datos_sel.put( ((Object[])vector_campos.elementAt(i))[28],
((java.util.Vector)
vector_datos.elementAt(fila)).elementAt(i) );
manejoparametros.fila_seleccionada = fila;
manejoparametros.map_datos_seleccionados = map_datos_sel;
public void obtieneDatosSeleccionados_ant(int fila)
if (fila >=0 && fila < vector_datos.size())
manejoparametros.isSeleccionada = true;
java.util.TreeMap map_datos_sel = new java.util.TreeMap();
int indice_vector;
int total_tabla=-1;
for (int i=0;i<vector_campos_usar.size();i++)
// String[] arreglo_campo_usar = new String[2];
// arreglo_campo_usar = (String[])vector_campos_usar.elementAt(i);
// indice_vector = Integer.parseInt(arreglo_campo_usar[0]);
/*AQUI DEBO CLASIFICAR SI ES FIJO O ES DE LA TABLA*/
if (!
((String)((Object[])vector_campos_usar_i.elementAt(i))[2]).equals(
"JTable"))
continue;
else
total_tabla++;
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos_usar_i.elementAt(i))[28]) ))
if (!map_datos_sel.containsKey(
((Object[])vector_campos_usar_i.elementAt(i))[28]))
map_datos_sel.put( ((Object[])vector_campos_usar_i.elementAt(i))[28],
((java.util.Vector)
vector_datos.elementAt(fila)).elementAt(total_tabla) );
int total_campos = -1;
for (int i=0;i<vector_campos.size();i++)
if (!UtilitariosGenerales.isCampoBlanco(
((String)((Object[])vector_campos.elementAt(i))[28]) ) &&
!((String)((Object[])vector_campos.elementAt(i))[2]).equals(
"JEncadena"))
if (!map_datos_sel.containsKey(
((Object[])vector_campos.elementAt(i))[28]))
total_campos++;
String valores = (String)((java.util.TreeMap)
vector_datos_campos.elementAt(fila)).get(
((Object[])vector_campos.elementAt(
i))[28]);
map_datos_sel.put( ((Object[])vector_campos.elementAt(i))[28],
valores);
// ((java.util.Vector)
// vector_datos_campos.elementAt(fila)).elementAt(total_campos) );
manejoparametros.fila_seleccionada = fila;
manejoparametros.map_datos_seleccionados = map_datos_sel;
public void salirPrograma()
try
if (frame_usar instanceof javax.swing.JDialog)
((javax.swing.JDialog)frame_usar).setName("botones");
((javax.swing.JDialog)frame_usar).dispose();
}else
((javax.swing.JFrame)frame_usar).setName("botones");
((javax.swing.JFrame)frame_usar).dispose();
}catch (Exception ex)
System.out.println(ex.toString());
}

Use JSpinner with JTable

I have retrieve records from database but as the number of records(rows) are more than 1000 , i want to use JSpinner with JTable. How can i do so?

you can start by being more clear on what your requirements are.

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