Package datos

package Datos;
//paquete de javaque tiene el JDBC;
importjava.sql.CallableStatement;
importjava.sql.Connection;
importjava.sql.DriverManager;
importjava.sql.ResultSet;
importjava.sql.SQLException;
importjava.sql.Statement;
importjava.util.Vector;
importjava.util.logging.Level;
importjava.util.logging.Logger;
importjavax.swing.JOptionPane;
importjavax.swing.table.DefaultTableModel;
importjavax.swing.table.TableModel;
publicclassConexionBD{
//misvariables
publicConnectioncn;
publicStatementst;
publicCallableStatementcs;
publicResultSetrs;
publicStringURL;
publicStringUsuario;
publicStringContraseña;
publicStringbd;

publicStringtb;
//Constructorel cual recibiracomo parametrosel nombre de labase de datos para poder
conectarnosa ella.
publicConexionBD(Stringbd) {
try{
//Nombre de Base de Datos
this.bd= bd;
//Cargamoslaclase del controladorde la base de datos
Class.forName("org.postgresql.Driver");
//Establecemosconexion
URL = "jdbc:postgresql://localhost:5432/"+this.bd;
Usuario= "postgres";
Contraseña= "openxava";
cn = DriverManager.getConnection(URL,Usuario,Contraseña);
//Creamosel objetostatementparaparaconsultara labase de datos
st = cn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
// System.out.println("ConexionIniciada");
//para detetectarposiblesproblemasal interactuarconla base de datos
} catch (SQLExceptionex) {
Logger.getLogger(ConexionBD.class.getName()).log(Level.SEVERE,null,ex);
// System.out.println("ErrorenBase de Datos");
//para detectarposiblesproblemasal cargar laclase del controladorde la base de datos
} catch (ClassNotFoundExceptionex) {
// System.out.println("Nose encontróel DriverSQL");

//para detetectarposiblesproblemasgenericos
}catch(Exceptionex){
JOptionPane.showConfirmDialog(null,"Error:nOcurriounerror
"+ex.getLocalizedMessage()+" ->"+ex.getMessage());
}
}
@Override
protectedvoidfinalize() throwsThrowable {
super.finalize();//Tochange bodyof generatedmethods,choose Tools|Templates.
}
publicStatementgetSt() {
returnst;
}
publicvoid setSt(Statementst) {
this.st= st;
}
publicCallableStatementgetCs(){
returncs;
}
publicvoidsetCs(CallableStatementcs) {

this.cs= cs;
}
publicResultSetgetRs() {
returnrs;
}
publicvoidsetRs(ResultSetrs) {
this.rs= rs;
}
publicConnectiongetCn() {
returncn;
}
publicvoidsetCn(Connectioncn) {
this.cn= cn;
}
publicStringgetBd() {
returnbd;
}
publicvoid setBd(Stringbd) {
this.bd=bd;
}

publicStringgetURL() {
returnURL;
}
publicvoidsetURL(StringURL) {
this.URL= URL;
}
publicStringgetUsuario() {
returnUsuario;
}
publicvoidsetUsuario(StringUsuario) {
this.Usuario=Usuario;
}
publicStringgetContraseña() {
returnContraseña;
}
publicvoidsetContraseña(StringContraseña) {
this.Contraseña=Contraseña;
}
publicvoid CerrarBD(){

try{}finally{
try {
st.close();
}
try {
cn.close();
System.out.println("ConexionFinalizada");
}
}
}
/******Funciones Genericas******/
publicTableModel MostrarTabla(Stringsql){
DefaultTableModel m= newDefaultTableModel();
Classc[];
try {
rs = cn.createStatement().executeQuery(sql);
for(inti = 1; i <= rs.getMetaData().getColumnCount();i++){
m.addColumn(rs.getMetaData().getColumnName(i));
}
while(rs.next()){

Vectorv = newVector();
for(inti = 1; i <= rs.getMetaData().getColumnCount();i++){
System.out.println();
if(rs.getMetaData().getColumnClassName(i).toString().compareTo("java.lang.String")==0){
v.addElement(rs.getInt(rs.getMetaData().getColumnName(2)));
}if(rs.getMetaData().getColumnClassName(i).toString().compareTo("java.lang.Integer")==0){
v.addElement(rs.getString(rs.getMetaData().getColumnName(1)));
}
}
m.addRow(v);
}
} catch (Exceptionex) {
System.out.println("error"+ex.getMessage());;
}
returnm;
}
publicintConsultar(Stringsql){
intsw= 0;
try{
getSt().executeUpdate(sql);
System.out.println("Error"+ex.getMessage());
}

returnsw;
}
publicintVerificar(Stringsql){
intcant = 0;
try{
rs = getSt().executeQuery(sql);
rs.next();
cant = rs.getInt(1);
System.out.println("cantidadde registrossimilares:"+cant);
System.out.println("error"+ex.getMessage());
}
returncant;
}
}
package Dao;
importBeans.beansAutor;
importDatos.ConexionBD;
importjava.sql.CallableStatement;
importjava.sql.Types;
importjava.util.Vector;
importjavax.swing.ComboBoxModel;

importjavax.swing.DefaultComboBoxModel;
importjavax.swing.table.DefaultTableModel;
importjavax.swing.table.TableModel;
publicclassdaoAutor{
publicbooleanInsertarAutor(beansAutora){
try{
ConexionBDcn= newConexionBD("biblioteca");
CallableStatementcs= cn.getCn().prepareCall("{?=call INSERT_AUTOR(?,?)}");
cs.setString(2,a.getNomb());
cs.setString(3,a.getPs());
cs.registerOutParameter(1,Types.BOOLEAN);
cs.executeUpdate();
returncs.getBoolean(1);
returnfalse;
}
}
publicbooleanActualizarAutor(beansAutora){
try{
CallableStatementcs= cn.getCn().prepareCall("{?=call UPDATE_AUTOR(?,?,?)}");
cs.setInt(2,a.getId());
cs.setString(3,a.getNomb());

cs.setString(4, a.getPs());
cs.execute();
returnfalse;
}
}
publicbooleanEliminarAutor(beansAutora){
try{
CallableStatementcs= cn.getCn().prepareCall("{?=call DELETE_AUTOR(?)}");
cs.setInt(2,a.getId());
cs.execute();
returnfalse;
}
}
publicTableModel BuscarAutor(Stringtp){
try{

ResultSetrs= cn.getSt().executeQuery("SELECT*FROMSEARCH_AUTOR(0,'"+tp+"');");
DefaultTableModel mode =new DefaultTableModel();
mode.addColumn("Codigo");
mode.addColumn("Nombre del Autor");
mode.addColumn("Pais");
while(rs.next()){
v.addElement(rs.getInt("aut_id"));
v.addElement(rs.getString("aut_nomb"));
v.addElement(rs.getString("ps"));
mode.addRow(v);
}
returnmode;
System.out.println("error"+ex.getMessage()+"n");
returnnull;
}
}
publicTableModel BuscarAutor(intid){
try{
ResultSetrs= cn.getSt().executeQuery("SELECT*FROMSEARCH_AUTOR("+id+",'null');");

mode.addColumn("Nombre del Autor");
while(rs.next()){
v.addElement(rs.getInt("aut_id"));
v.addElement(rs.getString("aut_nomb"));
v.addElement(rs.getString("ps"));
mode.addRow(v);
}
returnmode;
System.out.println("error"+ex.getMessage()+"n");
returnnull;
}
}
publicTableModel ListarAutor(){
try{
ResultSetrs= cn.getSt().executeQuery("SELECT*FROMSELECT_AUTOR();");
mode.addColumn("Nombre");
while(rs.next()){

v.addElement(rs.getInt("autor_id"));
v.addElement(rs.getString("nombre_autor"));
v.addElement(rs.getString("pais"));
mode.addRow(v);
}
returnmode;
returnnull;
}
}
publicintExtraerAutor(StringnombEsc){
try{
CallableStatementcs= cn.getCn().prepareCall("{? =call EXTRACT_AUTOR(?)}");
cs.setString(2,nombEsc);
cs.registerOutParameter(1,Types.INTEGER);
cs.executeUpdate();
returncs.getInt(1);
return0;
}
}

}
package Beans;
publicclassbeansAutor{
private Integerid;
private Stringnomb;
private Stringps;
publicbeansAutor(Integerid,Stringnomb,Stringps) {
this.id=id;
this.nomb=nomb;
this.ps=ps;
}
publicIntegergetId() {
returnid;
}
publicvoidsetId(Integerid) {
this.id=id;
}
publicStringgetNomb() {
returnnomb;

}
publicvoidsetNomb(Stringnomb) {
this.nomb=nomb;
}
publicStringgetPs() {
returnps;
}
publicvoidsetPs(Stringps) {
this.ps=ps;
}
}
package Control;
importDao.daoAutor;
publicclasscontrolAutor{

publicbooleanAccionAutor(Stringname,beansAutorb){
try{
daoAutord = newdaoAutor();
if(name.compareTo("INSERTAR") ==0){
returnd.InsertarAutor(b);
}else{
if(name.compareTo("ACTUALIZAR") ==0){
return d.ActualizarAutor(b);
}else{
if(name.compareTo("ELIMINAR") ==0){
returnd.EliminarAutor(b);
}else{
returnfalse;
}
}
}
System.out.println("ERROR:control Autor");
returnfalse;
}
}
}
package Frm;

importControl.controlAutor;
importDao.daoAutor;
importDao.daoPais;
importjavax.swing.JOptionPane;
importjavax.swing.JViewport;
importjavax.swing.table.TableColumn;
importjavax.swing.table.TableColumnModel;
publicclassfrmAutorextendsjavax.swing.JInternalFrame {
static private intcodigo;
static private Stringautor;
static private Stringpais;
publicfrmAutor() {
initComponents();
this.setTitle("AUTOR");
cboPaisLlenar();
tbAutorLlenar();
LimpiarObjetos();
}
@SuppressWarnings("unchecked")
// <editor-folddefaultstate="collapsed"desc="GeneratedCode">//GEN-BEGIN:initComponents
private voidinitComponents() {

btnSalir=newjavax.swing.JButton();
jLabel4= newjavax.swing.JLabel();
btnActualizar=newjavax.swing.JButton();
btnEliminar=newjavax.swing.JButton();
jScrollPane1= newjavax.swing.JScrollPane();
tbAutor= newjavax.swing.JTable();
txtCodigo=newjavax.swing.JTextField();
btnBuscar= newjavax.swing.JButton();
txtAutor= newjavax.swing.JTextField();
btnInsertar=newjavax.swing.JButton();
cboPais= newjavax.swing.JComboBox();
btnSalir.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
4.png")));//NOI18N
btnSalir.setText("SALIR");
btnSalir.addActionListener(newjava.awt.event.ActionListener() {
publicvoidactionPerformed(java.awt.event.ActionEventevt) {
btnSalirActionPerformed(evt);
}
});

jLabel4.setBackground(new java.awt.Color(204,204, 255));
jLabel4.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
jLabel4.setIcon(newjavax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
8.png")));//NOI18N
btnActualizar.setIcon(newjavax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
3.png")));//NOI18N
btnActualizar.setText("ACTUALIZAR");
btnActualizar.addActionListener(newjava.awt.event.ActionListener() {
btnActualizarActionPerformed(evt);
}
});
btnEliminar.setIcon(newjavax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
9.png")));//NOI18N
btnEliminar.setText("ELIMINAR");
btnEliminar.addActionListener(new java.awt.event.ActionListener() {
btnEliminarActionPerformed(evt);
}
});
jScrollPane1.setBackground(newjava.awt.Color(204,204, 255));
tbAutor.setBackground(newjava.awt.Color(204,204, 255));
tbAutor.setModel(new javax.swing.table.DefaultTableModel(

newObject[][] {
},
newString[] {
"CODIGO","TIPODE MATERIAL"
}
) {
Class[] types=newClass [] {
java.lang.Integer.class,java.lang.String.class
};
publicClassgetColumnClass(intcolumnIndex) {
returntypes[columnIndex];
}
});
tbAutor.addMouseListener(newjava.awt.event.MouseAdapter(){
publicvoidmouseClicked(java.awt.event.MouseEventevt) {
tbAutorMouseClicked(evt);
}
});
jScrollPane1.setViewportView(tbAutor);
txtCodigo.setEditable(false);
txtCodigo.setBackground(new java.awt.Color(204,204, 255));
txtCodigo.setEnabled(false);

jLabel3.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
jLabel3.setIcon(newjavax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
14.png")));//NOI18N
jLabel3.setText("LISTA ");
jLabel3.setBorder(javax.swing.BorderFactory.createEtchedBorder(newjava.awt.Color(204,
204, 204), newjava.awt.Color(204,204, 204)));
jLabel2.setText("Nombre Completo");
btnBuscar.setIcon(newjavax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
15.png")));//NOI18N
btnBuscar.setText("BUSCAR");
btnBuscar.addActionListener(new java.awt.event.ActionListener() {
btnBuscarActionPerformed(evt);
}
});
jLabel1.setText("Codigo");
txtAutor.setBackground(newjava.awt.Color(204,204, 255));
btnInsertar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Icono/Sintítulo-
10.png")));//NOI18N

btnInsertar.setText("INSERTAR");
btnInsertar.addActionListener(new java.awt.event.ActionListener() {
btnInsertarActionPerformed(evt);
}
});
jLabel5.setText("Pais");
cboPais.addActionListener(newjava.awt.event.ActionListener() {
publicvoid actionPerformed(java.awt.event.ActionEventevt) {
cboPaisActionPerformed(evt);
}
});
javax.swing.GroupLayoutlayout=new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1)

.addComponent(jLabel5))
.addGap(27,27, 27)
.addComponent(txtAutor)
.addComponent(txtCodigo,javax.swing.GroupLayout.PREFERRED_SIZE,93,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(150, 150, 150)
.addGap(0,193, Short.MAX_VALUE))
.addComponent(cboPais,0,javax.swing.GroupLayout.DEFAULT_SIZE,
Short.MAX_VALUE)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,
false)
.addComponent(jScrollPane1,javax.swing.GroupLayout.DEFAULT_SIZE,431,
Short.MAX_VALUE)
.addComponent(jLabel3,javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE))
.addGap(18,18, 18)
.addComponent(btnActualizar,javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE)
.addComponent(btnSalir,javax.swing.GroupLayout.DEFAULT_SIZE,
.addComponent(btnEliminar,javax.swing.GroupLayout.DEFAULT_SIZE,

.addComponent(btnInsertar,javax.swing.GroupLayout.DEFAULT_SIZE,
.addComponent(btnBuscar,javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE))))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(2,2, 2)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txtCodigo,javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE,javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jLabel4))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(txtAutor,javax.swing.GroupLayout.PREFERRED_SIZE,
.addComponent(cboPais,javax.swing.GroupLayout.PREFERRED_SIZE,

.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,
false)
.addComponent(btnInsertar)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnActualizar)
.addComponent(btnEliminar)
.addComponent(btnBuscar)
.addComponent(btnSalir))
.addComponent(jScrollPane1,javax.swing.GroupLayout.PREFERRED_SIZE,0,
Short.MAX_VALUE)))
.addGap(12, 23, Short.MAX_VALUE))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private voidbtnSalirActionPerformed(java.awt.event.ActionEventevt) {//GEN-
FIRST:event_btnSalirActionPerformed
this.setVisible(false);
}//GEN-LAST:event_btnSalirActionPerformed

private voidbtnActualizarActionPerformed(java.awt.event.ActionEventevt){//GEN-
FIRST:event_btnActualizarActionPerformed
try{
codigo= Integer.parseInt(this.txtCodigo.getText());
autor = this.txtAutor.getText().toLowerCase();
if(autor.length()>0 ){
beansAutorobj = newbeansAutor(codigo,autor,pais);
controlAutorc = newcontrolAutor();
intrpta = JOptionPane.showConfirmDialog(rootPane,"¿Deseaguardar
cambios?","MENSAJE",JOptionPane.OK_OPTION);
if(rpta== 0){
if(c.AccionAutor(evt.getActionCommand(),obj)){
JOptionPane.showMessageDialog(rootPane,"Se modificoexitosamenteel autor
"+autor.toUpperCase(),"MENSAJE",JOptionPane.INFORMATION_MESSAGE);
}else{
JOptionPane.showMessageDialog(rootPane,"Yaexisteunautorregistradocon
algunosde estosdatos","ERROR",JOptionPane.ERROR_MESSAGE);
}
}
}else{
JOptionPane.showMessageDialog(rootPane,"Porfavor,Ingrese losdatos
solicitados.nGracias...☺‼","MENSAJE",JOptionPane.INFORMATION_MESSAGE);
}
tbAutorLlenar();
LimpiarObjetos();

JOptionPane.showMessageDialog(rootPane,"Surgiounproblemaal Actualizar
☺‼","ERROR",JOptionPane.ERROR_MESSAGE);
}
}//GEN-LAST:event_btnActualizarActionPerformed
private voidbtnEliminarActionPerformed(java.awt.event.ActionEventevt) {//GEN-
FIRST:event_btnEliminarActionPerformed
try{
codigo= Integer.parseInt(this.txtCodigo.getText());
beansAutorobj =newbeansAutor(codigo,"","");
controlAutorc= newcontrolAutor();
intrpta = JOptionPane.showConfirmDialog(rootPane,"¿Desea
eliminar?","MENSAJE",JOptionPane.OK_OPTION);
if(rpta== 0){
JOptionPane.showMessageDialog(rootPane,"Se eliminoexitosamenteel autor
}else{
JOptionPane.showMessageDialog(rootPane,"El autor"+autor.toUpperCase()+"esta
siendousadoporalgunMATERIAL ☺‼","ALERTA",JOptionPane.ABORT);
}
}
tbAutorLlenar();
LimpiarObjetos();
JOptionPane.showMessageDialog(rootPane,"Surgiounproblemaal Eliminar
}

}//GEN-LAST:event_btnEliminarActionPerformed
private voidtbAutorMouseClicked(java.awt.event.MouseEventevt) {//GEN-
FIRST:event_tbAutorMouseClicked
try{
intfila= this.tbAutor.getSelectedRow();
this.txtCodigo.setText(this.tbAutor.getValueAt(fila,0).toString());
this.txtAutor.setText(this.tbAutor.getValueAt(fila,1).toString());
this.cboPais.setSelectedItem(this.tbAutor.getValueAt(fila,2).toString());
this.txtCodigo.setEditable(false);
JOptionPane.showMessageDialog(this,"Error al Seleccionarlatabla☺‼");
}
}//GEN-LAST:event_tbAutorMouseClicked
private voidbtnInsertarActionPerformed(java.awt.event.ActionEventevt) {//GEN-
FIRST:event_btnInsertarActionPerformed
try{
autor = this.txtAutor.getText().toLowerCase();
if(autor.length()>0){
beansAutorobj = newbeansAutor(0,autor,pais);
controlAutorc = newcontrolAutor();
JOptionPane.showMessageDialog(rootPane,"Se insertoexitosamente el Autor
}else{

JOptionPane.showMessageDialog(rootPane,"Yaexiste unautorregistradoconalgunos
de estosdatos","ERROR",JOptionPane.ERROR_MESSAGE);
}
}else{
JOptionPane.showMessageDialog(rootPane,"Porfavor,Ingrese losdatos
solicitados.nGracias...☺‼","MENSAJE",JOptionPane.INFORMATION_MESSAGE);
}
tbAutorLlenar();
LimpiarObjetos();
JOptionPane.showMessageDialog(rootPane,"Surgiounproblemaal Insertar
}
}//GEN-LAST:event_btnInsertarActionPerformed
private voidbtnBuscarActionPerformed(java.awt.event.ActionEventevt) {//GEN-
FIRST:event_btnBuscarActionPerformed
try{
daoAutora = newdaoAutor();
if(this.txtCodigo.getText().length()>0 && this.txtAutor.getText().toLowerCase().length() ==
0){
System.out.println("busquedasegunel codigo");
this.tbAutor.setModel(a.BuscarAutor(Integer.parseInt(this.txtCodigo.getText())));
}else
{
System.out.println("busquedasegunel tipo");
this.tbAutor.setModel(a.BuscarAutor(this.txtAutor.getText().toLowerCase()));

}
LimpiarObjetos();
JOptionPane.showMessageDialog(this,"Erroral Buscar ☺‼"+ex.getMessage());
}
}//GEN-LAST:event_btnBuscarActionPerformed
private voidcboPaisActionPerformed(java.awt.event.ActionEventevt){//GEN-
FIRST:event_cboPaisActionPerformed
try{
pais= (this.cboPais.getSelectedIndex()+1)+"";
JOptionPane.showMessageDialog(this,"Errorencbo Pais ☺‼"+ex.getMessage());
}
}//GEN-LAST:event_cboPaisActionPerformed
// Variables declaration - donotmodify//GEN-BEGIN:variables
private javax.swing.JButtonbtnActualizar;
private javax.swing.JButtonbtnBuscar;
private javax.swing.JButtonbtnEliminar;
private javax.swing.JButtonbtnInsertar;
private javax.swing.JButtonbtnSalir;
private javax.swing.JComboBox cboPais;
private javax.swing.JLabeljLabel1;

private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTabletbAutor;
private javax.swing.JTextFieldtxtAutor;
private javax.swing.JTextFieldtxtCodigo;
// End of variablesdeclaration//GEN-END:variables
publicvoid tbAutorLlenar(){
try {
daoAutora = newdaoAutor();
this.tbAutor.setModel(a.ListarAutor());
setAnchoColumnas();
} catch (Exceptionex) {
}
}
publicvoidLimpiarObjetos(){
this.txtCodigo.setText("");
this.txtAutor.setText("");
this.cboPais.setSelectedIndex(0);
}
publicvoidcboPaisLlenar(){

try{
daoPaise = newdaoPais();
this.cboPais.setModel(e.ListarPais());
}catch(Exceptione){
JOptionPane.showMessageDialog(rootPane,"Erroral llenarcombode facultad...");
}
}
publicvoidsetAnchoColumnas(){
JViewportscroll = (JViewport) tbAutor.getParent();
intancho = scroll.getWidth();
intanchoColumna=0;
TableColumnModel modeloColumna=tbAutor.getColumnModel();
TableColumncolumnaTabla;
for(inti = 0; i < tbAutor.getColumnCount();i++) {
columnaTabla= modeloColumna.getColumn(i);
switch(i){
case 0: anchoColumna= (20*ancho)/100;
break;
break;
break;
}
columnaTabla.setPreferredWidth(anchoColumna);
}

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