Programacion en Java Uso de Jcombobox y Ejercicios

7/24/2019 Programacion en Java Uso de Jcombobox y Ejercicios

1/26

Programa que Calcula las Millas sobre Galones

importjavax.swing.JOptionPane;

public class tanques {

public static void main(String[ args! {

intgalones"millas"tanque;

Stringgalon"milla;

milla#JOptionPane.s$ow%nput&ialog('%ntroduce la antidad de

)alones*'!;

galon#JOptionPane.s$ow%nput&ialog('%ntroduce la antidad de

+illas*'!;

galones#%nteger.parse%nt(galon!;

millas#%nteger.parse%nt(milla!;

tanque#galones,millas;

JOptionPane.s$ow%nput&ialog('-lumno* J-%/0 O0&O-1n' 2 '34ontrol*

56789:81n1n' 2 '


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Programa de 3 Calificaciones

importjavax.swing.JOptionPane;

public class ali>icacion {

public static void main(String[ args! {

>loat c5"c7"c9"cali>icacion>inal;

String cali5"cali7"cali9;

cali5#JOptionPane.s$ow%nput&ialog('%ntroduce ?a

Primera ali>icacion'!;

cali7#JOptionPane.s$ow%nput&ialog('%ntroduce ?aSegunda ali>icacion'!;

cali9#JOptionPane.s$ow%nput&ialog('%ntroduce ?a

icacion'!;

c5#%nteger.parse%nt(cali5!;



cali>icacion>inal#(c52c72c9!,9;

JOptionPane.s$ow%nput&ialog('-lumno* J-%/0 O0&O-1n' 2

'34ontrol* 56789:81n1n' 2 '?a ali>icacion @inal /s* ' 2 cali>icacion>inal!;

=

=


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Programa 4 Botones

importjava.awt.A;

importjavax.swing.A;

public class Botones extends J@rame

{

privateJButtonsumar"restar"multiplicar"dividir;

public static void main (java.lang.Stringargs[! {

Botonesventana#new Botones(!;

ventana.setSiCe(66"566!;

ventana.create)D%(!;

ventana.setisible(true!;

=

private void create)D%(!{

set&e>aultloseOperation(/E%


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dividir#new JButton('&%%&%0'!;

contenedor.add(dividir!;

=

=

Programa de Operaciones Aritmtica de 4 Botones

importjava.awt.A;

importjava.awt.event.A;


public class /ventos extends J@rame implements -ction?istener

{

privateJButtonsumar"restar"multiplicar"dividir;

privateJ?abel label5"label7"label9;

privateJ


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ontainer contenedor#getontentPane(!;

contenedor.set?aGout(new )rid?aGout(":!!;

label5#new J?abel('%3


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multiplicar#new JButton('+D?


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resultado#num5Hnum7;

texto9.set(resultado!!;

=

i>(origen##multiplicar!

{

int num5"num7"resultado;

num5#%nteger.parse%nt(texto5.get


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Programa de Operaciones Aritmticas JComboBox

importjava.awt.A;



importjava.awt.color.A;

public class Progombo extends J@rame implements -ction?istener {

privateJomboBox combo;

privateJ


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programa.setisible(true!;

=

private void create)D%(! {



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combo#new JomboBox(!;

combo.add%tem ('Suma'!;

combo.add%tem ('0esta'!;

combo.add%tem ('+ultiplicacion'!;

combo.add%tem ('&ivision'!;

combo.add-ction?istener (t$is!;

contenedor.add(combo!;

boton5#new JButton ('ancelar'!;

contenedor.add(boton5!;

=

public void actionPer>ormed(-ction/vent event!

{

Object origen#event.getSource(!;

intindice#combo.getSelected%ndex(!;

i>(indice##6!

{




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{




12/26

Programa de Operaciones AritmticasJlider


importjava.awt.A;


importjavax.swing.event.A;

public class /xamen extends J@rame implements -ction?istener" $ange?istener

{

privateJSlider slider5"slider7;

privateJ


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{

/xamen ventana# new /xamen(!;


ventana.crear)D%(!;


=

private void crear)D%(!

{



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boton7#new JButton('0estar'!;

boton7.add-ction?istener(t$is!;

panel5.add(boton7!;

boton9#new JButton('+ultiplicar'!;

boton9.add-ction?istener(t$is!;

panel5.add(boton9!;

boton:#new JButton('&ividir'!;

boton:.add-ction?istener(t$is!;

panel5.add(boton:!;

label5#new J?abel('3umero 5*'!;

panel7.add(label5!;

texto5# new J


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texto7# new J


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int valor7#slider7.getalue(!;

texto7.setormed(-ction/vent event!

{

Object origen#event.getSource(!;

i>(origen##boton5!

{




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importjava.awt.A;


importjavax.swing.event.A;

public class omboSlider extends J@rame

implements-ction?istener" $ange?istener

{

privateJSlider slider5"slider7;

privateJ


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{



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label5#new J?abel('3umero 5*'!;

panel7.add(label5!;

texto5# new J


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panel7.add(texto9!;

=

public void actionPer>ormed5(-ction/vent event!

{

=

public void state$anged($ange/vent e!

{

int valor#slider5.getalue(!;

texto5.set(indice##6!

{




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texto9.set(resultado!!;

=

i>(indice##5!

{




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===

Programa de operaciones aritmticas "adiButton


importjava.awt.ontainer;

importjava.awt.)rid?aGout;


public class 0adioButton extends J@rame implements -ction?istener{

privateJ


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0adioButtonventana#new 0adioButton(!;


ventana.create)D%(!;


=

private void create)D%(!{



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texto9#new Jormed(-ction/ventevento! {

Object origen#evento.getSource(!;

i>(origen##boton5! {

int num5"num7"resultado#6;



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i> (radio5.isSelected(!! {

resultado#num52num7;

=

i> (radio7.isSelected(!! {

resultado#num5Hnum7;

=

texto9.set(resultado!!; ===

Programacion en Java Uso de Jcombobox y Ejercicios

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