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»
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»
Programación General
»
Java
(Moderador:
arielb
) »
lista enlazada en Java
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Páginas: [
1
]
Autor
Tema: lista enlazada en Java (Leído 2839 veces)
luisjoseblancom
Nuevo Miembro
Mensajes: 1
lista enlazada en Java
«
en:
Jueves 6 de Febrero de 2014, 04:22 »
0
hola buenas, necesito ayuda con un programa. Soy nuevo programando en Java y me mandaron a hacer un programa de listas y me falta una parte que es mostrar, mi duda es como hago para usar un boton para mostrar los datos guardados en un textarea. Como hago para enlazarlos de alguna manera.
Código: Java(TM) 2 Platform Standard Edition 5.0
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package
lista_clase
;
/**
*
* @author cultca
*/
public
class
Pantalla
extends
javax.
swing
.
JFrame
{
Alumno ptr,ptr1,inicio,ultimo,aux,c
;
public
Pantalla
(
)
{
initComponents
(
)
;
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@
SuppressWarnings
(
"unchecked"
)
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private
void
initComponents
(
)
{
Nombre =
new
javax.
swing
.
JLabel
(
)
;
APELLIDO =
new
javax.
swing
.
JLabel
(
)
;
Cedula =
new
javax.
swing
.
JLabel
(
)
;
edad =
new
javax.
swing
.
JLabel
(
)
;
nombre =
new
javax.
swing
.
JTextField
(
)
;
apellido =
new
javax.
swing
.
JTextField
(
)
;
CEDULA =
new
javax.
swing
.
JTextField
(
)
;
EDAD =
new
javax.
swing
.
JTextField
(
)
;
jLabel5 =
new
javax.
swing
.
JLabel
(
)
;
BOTONINGRESAR =
new
javax.
swing
.
JButton
(
)
;
BOTONMOSTRAR =
new
javax.
swing
.
JButton
(
)
;
jScrollPane1 =
new
javax.
swing
.
JScrollPane
(
)
;
jList1 =
new
javax.
swing
.
JList
(
)
;
setDefaultCloseOperation
(
javax.
swing
.
WindowConstants
.
EXIT_ON_CLOSE
)
;
setAlwaysOnTop
(
true
)
;
setBackground
(
new
java.
awt
.
Color
(
0
,
0
,
0
)
)
;
setCursor
(
new
java.
awt
.
Cursor
(
java.
awt
.
Cursor
.
HAND_CURSOR
)
)
;
setForeground
(
java.
awt
.
Color
.
green
)
;
setName
(
"Pantalla"
)
;
// NOI18N
Nombre.
setBackground
(
new
java.
awt
.
Color
(
153
,
153
,
153
)
)
;
Nombre.
setFont
(
new
java.
awt
.
Font
(
"Tunga"
,
0
,
14
)
)
;
// NOI18N
Nombre.
setForeground
(
new
java.
awt
.
Color
(
51
,
51
,
255
)
)
;
Nombre.
setText
(
"NOMBRE:"
)
;
APELLIDO.
setBackground
(
new
java.
awt
.
Color
(
153
,
153
,
153
)
)
;
APELLIDO.
setFont
(
new
java.
awt
.
Font
(
"Tunga"
,
0
,
14
)
)
;
// NOI18N
APELLIDO.
setForeground
(
new
java.
awt
.
Color
(
0
,
0
,
255
)
)
;
APELLIDO.
setText
(
"APELLIDO:"
)
;
Cedula.
setBackground
(
new
java.
awt
.
Color
(
153
,
153
,
153
)
)
;
Cedula.
setFont
(
new
java.
awt
.
Font
(
"Tunga"
,
0
,
14
)
)
;
// NOI18N
Cedula.
setForeground
(
new
java.
awt
.
Color
(
0
,
0
,
255
)
)
;
Cedula.
setText
(
"CEDULA:"
)
;
edad.
setBackground
(
new
java.
awt
.
Color
(
153
,
153
,
153
)
)
;
edad.
setFont
(
new
java.
awt
.
Font
(
"Tunga"
,
0
,
14
)
)
;
// NOI18N
edad.
setForeground
(
new
java.
awt
.
Color
(
0
,
0
,
255
)
)
;
edad.
setText
(
"EDAD:"
)
;
nombre.
setFont
(
new
java.
awt
.
Font
(
"Traditional Arabic"
,
3
,
14
)
)
;
// NOI18N
apellido.
setFont
(
new
java.
awt
.
Font
(
"Traditional Arabic"
,
3
,
14
)
)
;
// NOI18N
CEDULA.
setFont
(
new
java.
awt
.
Font
(
"Traditional Arabic"
,
3
,
14
)
)
;
// NOI18N
CEDULA.
addActionListener
(
new
java.
awt
.
event
.
ActionListener
(
)
{
public
void
actionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
CEDULAActionPerformed
(
evt
)
;
}
}
)
;
EDAD.
setFont
(
new
java.
awt
.
Font
(
"Traditional Arabic"
,
3
,
14
)
)
;
// NOI18N
EDAD.
addActionListener
(
new
java.
awt
.
event
.
ActionListener
(
)
{
public
void
actionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
EDADActionPerformed
(
evt
)
;
}
}
)
;
jLabel5.
setFont
(
new
java.
awt
.
Font
(
"Times New Roman"
,
0
,
20
)
)
;
// NOI18N
jLabel5.
setText
(
"Lista De Clases "
)
;
BOTONINGRESAR.
setBackground
(
new
java.
awt
.
Color
(
102
,
102
,
102
)
)
;
BOTONINGRESAR.
setForeground
(
new
java.
awt
.
Color
(
0
,
0
,
255
)
)
;
BOTONINGRESAR.
setText
(
"INGRESAR"
)
;
BOTONINGRESAR.
addActionListener
(
new
java.
awt
.
event
.
ActionListener
(
)
{
public
void
actionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
BOTONINGRESARActionPerformed
(
evt
)
;
}
}
)
;
BOTONMOSTRAR.
setBackground
(
new
java.
awt
.
Color
(
102
,
102
,
102
)
)
;
BOTONMOSTRAR.
setForeground
(
new
java.
awt
.
Color
(
51
,
51
,
255
)
)
;
BOTONMOSTRAR.
setText
(
"MOSTRAR"
)
;
BOTONMOSTRAR.
addActionListener
(
new
java.
awt
.
event
.
ActionListener
(
)
{
public
void
actionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
BOTONMOSTRARActionPerformed
(
evt
)
;
}
}
)
;
jScrollPane1.
setViewportView
(
jList1
)
;
javax.
swing
.
GroupLayout
layout =
new
javax.
swing
.
GroupLayout
(
getContentPane
(
)
)
;
getContentPane
(
)
.
setLayout
(
layout
)
;
layout.
setHorizontalGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
TRAILING
, layout.
createSequentialGroup
(
)
.
addGap
(
0
,
0
,
Short
.
MAX_VALUE
)
.
addComponent
(
BOTONMOSTRAR
)
.
addGap
(
120
,
120
,
120
)
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addContainerGap
(
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addComponent
(
BOTONINGRESAR
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addComponent
(
Nombre, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
56
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
APELLIDO
)
.
addComponent
(
Cedula
)
.
addComponent
(
edad
)
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
TRAILING
, layout.
createSequentialGroup
(
)
.
addPreferredGap
(
javax.
swing
.
LayoutStyle
.
ComponentPlacement
.
RELATED
)
.
addComponent
(
nombre, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
210
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addGap
(
14
,
14
,
14
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addComponent
(
CEDULA, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
140
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
apellido, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
210
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
EDAD, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
49
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
)
)
)
)
)
.
addGap
(
18
,
18
,
18
)
.
addComponent
(
jScrollPane1, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
177
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addGap
(
118
,
118
,
118
)
.
addComponent
(
jLabel5
)
)
)
.
addContainerGap
(
70
,
Short
.
MAX_VALUE
)
)
)
;
layout.
setVerticalGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addGap
(
9
,
9
,
9
)
.
addComponent
(
jLabel5, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
25
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addGap
(
18
,
18
,
18
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
LEADING
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addComponent
(
jScrollPane1, javax.
swing
.
GroupLayout
.
DEFAULT_SIZE
,
262
,
Short
.
MAX_VALUE
)
.
addGap
(
18
,
18
,
18
)
.
addComponent
(
BOTONMOSTRAR
)
)
.
addGroup
(
layout.
createSequentialGroup
(
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
BASELINE
)
.
addComponent
(
nombre, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
, javax.
swing
.
GroupLayout
.
DEFAULT_SIZE
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
Nombre, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
25
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
)
.
addGap
(
6
,
6
,
6
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
BASELINE
)
.
addComponent
(
apellido, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
, javax.
swing
.
GroupLayout
.
DEFAULT_SIZE
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
APELLIDO, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
,
20
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
)
.
addPreferredGap
(
javax.
swing
.
LayoutStyle
.
ComponentPlacement
.
UNRELATED
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
BASELINE
)
.
addComponent
(
CEDULA, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
, javax.
swing
.
GroupLayout
.
DEFAULT_SIZE
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
Cedula
)
)
.
addPreferredGap
(
javax.
swing
.
LayoutStyle
.
ComponentPlacement
.
UNRELATED
)
.
addGroup
(
layout.
createParallelGroup
(
javax.
swing
.
GroupLayout
.
Alignment
.
BASELINE
)
.
addComponent
(
EDAD, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
, javax.
swing
.
GroupLayout
.
DEFAULT_SIZE
, javax.
swing
.
GroupLayout
.
PREFERRED_SIZE
)
.
addComponent
(
edad
)
)
.
addGap
(
18
,
18
,
18
)
.
addComponent
(
BOTONINGRESAR
)
.
addGap
(
19
,
19
,
19
)
)
)
)
)
;
pack
(
)
;
}
// </editor-fold>
private
void
EDADActionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
// TODO add your handling code here:
}
private
void
CEDULAActionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
// TODO add your handling code here:
}
private
void
BOTONINGRESARActionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
// TODO add your handling code here:
if
(
ptr==
null
)
{
ptr=
new
Alumno
(
)
;
// esto es para convertir los enteros en string
ptr.
set_cedula
(
Integer
.
parseInt
(
CEDULA.
getText
(
)
)
)
;
ptr.
set_edad
(
Integer
.
parseInt
(
EDAD.
getText
(
)
)
)
;
// esto es para borrar los datos en la pantalla
nombre.
setText
(
" "
)
;
apellido.
setText
(
" "
)
;
CEDULA.
setText
(
" "
)
;
EDAD.
setText
(
" "
)
;
ptr1=ptr
;
inicio=ptr
;
ultimo=ptr
;
ultimo.
sig
=
null
;
}
else
{
ptr=
new
Alumno
(
)
;
ptr.
set_nombre
(
nombre.
getText
(
)
)
;
ptr.
set_apellido
(
apellido.
getText
(
)
)
;
//esto es para convertir los enteros en string
ptr.
set_cedula
(
Integer
.
parseInt
(
CEDULA.
getText
(
)
)
)
;
ptr.
set_edad
(
Integer
.
parseInt
(
EDAD.
getText
(
)
)
)
;
// esto es para borrar los datos de la pantalla
nombre.
setText
(
" "
)
;
apellido.
setText
(
" "
)
;
CEDULA.
setText
(
" "
)
;
EDAD.
setText
(
" "
)
;
ptr1.
sig
=ptr
;
ultimo=ptr
;
ultimo.
sig
=
null
;
}
}
private
void
BOTONMOSTRARActionPerformed
(
java.
awt
.
event
.
ActionEvent
evt
)
{
// TODO add your handling code here:
aux=ptr
;
int
c=
0
;
while
(
aux
!
=
null
)
{
System
.
out
.
println
(
"Nombre : "
+aux.
nombre
)
;
System
.
out
.
println
(
"Apellido : "
+aux.
apellido
)
;
System
.
out
.
println
(
"Cedula : "
+aux.
cedula
)
;
System
.
out
.
println
(
"Edad : "
+aux.
edad
)
;
c++
;
}
if
(
c==
0
)
{
System
.
out
.
println
(
"LISTA VACIA"
)
;
}
}
/**
* @param args the command line arguments
*/
public
static
void
main
(
String
args
[
]
)
{
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try
{
for
(
javax.
swing
.
UIManager.
LookAndFeelInfo
info : javax.
swing
.
UIManager
.
getInstalledLookAndFeels
(
)
)
{
if
(
"Nimbus"
.
equals
(
info.
getName
(
)
)
)
{
javax.
swing
.
UIManager
.
setLookAndFeel
(
info.
getClassName
(
)
)
;
break
;
}
}
}
catch
(
ClassNotFoundException
ex
)
{
java.
util
.
logging
.
Logger
.
getLogger
(
Pantalla.
class
.
getName
(
)
)
.
log
(
java.
util
.
logging
.
Level
.
SEVERE
,
null
, ex
)
;
}
catch
(
InstantiationException
ex
)
{
java.
util
.
logging
.
Logger
.
getLogger
(
Pantalla.
class
.
getName
(
)
)
.
log
(
java.
util
.
logging
.
Level
.
SEVERE
,
null
, ex
)
;
}
catch
(
IllegalAccessException
ex
)
{
java.
util
.
logging
.
Logger
.
getLogger
(
Pantalla.
class
.
getName
(
)
)
.
log
(
java.
util
.
logging
.
Level
.
SEVERE
,
null
, ex
)
;
}
catch
(
javax.
swing
.
UnsupportedLookAndFeelException
ex
)
{
java.
util
.
logging
.
Logger
.
getLogger
(
Pantalla.
class
.
getName
(
)
)
.
log
(
java.
util
.
logging
.
Level
.
SEVERE
,
null
, ex
)
;
}
//</editor-fold>
/* Create and display the form */
java.
awt
.
EventQueue
.
invokeLater
(
new
Runnable
(
)
{
public
void
run
(
)
{
new
Pantalla
(
)
.
setVisible
(
true
)
;
}
}
)
;
}
// Variables declaration - do not modify
private
javax.
swing
.
JLabel
APELLIDO
;
private
javax.
swing
.
JButton
BOTONINGRESAR
;
private
javax.
swing
.
JButton
BOTONMOSTRAR
;
private
javax.
swing
.
JTextField
CEDULA
;
private
javax.
swing
.
JLabel
Cedula
;
private
javax.
swing
.
JTextField
EDAD
;
private
javax.
swing
.
JLabel
Nombre
;
private
javax.
swing
.
JTextField
apellido
;
private
javax.
swing
.
JLabel
edad
;
private
javax.
swing
.
JLabel
jLabel5
;
private
javax.
swing
.
JList
jList1
;
private
javax.
swing
.
JScrollPane
jScrollPane1
;
private
javax.
swing
.
JTextField
nombre
;
// End of variables declaration
}
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