TUTORIAL PANEL TANGGAL
(By Mieftahul ‘ulum
Anak RpL 1 SMK Negeri 3 Banjar)
Berikut adalah langkah – langkah
cara membuat panel tanggal pada Netbeans 6.9.1.
Langkah pertama:
bagian interface
bagian interface
1.
Buat projek baru
2.
Jjframe form > beri nama
tanggal
3.
Set tittle jframe form baru , kasih nama seterah anda.
4.
Buat seperti gambar dibawah
ini.
5.
Pasang jpanel, kemudian
klik kanan pada jpanel property > border > line border.
6.
Ganti model pada combo box
tangal 1 sampai 31, combo box bulan diisi januari sampai desember, sedang combo
tahun kita kosongkan saja.
7.
Pasang 3 combo box dalam
jpanel seperti gambar diatas dimana combo box pertama sebagai tanggal, Kedua
sebagai bulan, ketiga adalah tahun.
8.
Ubah nama combo box pertama
menjadi cmb_D, kedua menjadi cmb_M, ketiga menjadi cmb_Y.
Langkah kedua :
bagian source coding
bagian source coding
1.
buat fungsi untuk
menampilkan tahun pada combo box tahun:
private void isicmbtahun(){
java.util.Calendar cal = java.util.Calendar.getInstance();
int awal = cal.get(cal.YEAR);
Integer[] isi = new Integer[60];
for(int i = 0; i < 60 ; i++){
isi[i] = awal - i;
}
DefaultComboBoxModel dcm = new DefaultComboBoxModel(isi);
cmb_y.setModel(dcm);
}
2.
buat fungsi untuk
menampilkan tanggal :
private void isicmbtanggal(){
int awal = 1;
Integer[] isi = new Integer[31];
for(int i = 0; i < 31; i++ ){
isi[i] = awal + i;
}
DefaultComboBoxModel ycm = new DefaultComboBoxModel(isi);
cmb_d.setModel(ycm);
}
3.
buat fungsi untuk
validasi tanggal :
private void
validasitanggal(){
int d =
Integer.parseInt(cmb_d.getSelectedItem().toString());
int m = cmb_m.getSelectedIndex();
int y =
Integer.parseInt(cmb_y.getSelectedItem().toString());
if(y % 4 == 0){
max[1] = 29;
} else {
max[1] = 28;
}
if(d > max[m]){
cmb_d.setSelectedItem(max[m]);
}
}
4.
klik kanan cmb_d > event
> item > Item State Changed
private void cmb_dItemStateChanged(java.awt.event.ItemEvent
evt) {
// TODO add your handling code
here:
validasitanggal();
}
5.
klik kanan cmb_m > event
> item > Item State Changed
private void
cmb_mItemStateChanged(java.awt.event.ItemEvent evt) {
//
TODO add your handling code here:
validasitanggal();
}
6.
klik kanan cmb_y > event
> item > Item State Changed
private void
cmb_yItemStateChanged(java.awt.event.ItemEvent evt) {
//
TODO add your handling code here:
validasitanggal();
}
Coding keseluruhan
package testanggal;
import javax.swing.DefaultComboBoxModel;
/**
*
* @author
*/
public class tanggal1 extends javax.swing.JFrame {
int[] max =
{31,28,31,30,31,30,31,31,30,31,30,31};
/** Creates new form tanggal1
*/
public tanggal1() {
initComponents();
isicmbtahun();
isicmbtanggal();
setHariIni();
}
private void isicmbtahun(){
java.util.Calendar cal =
java.util.Calendar.getInstance();
int awal =
cal.get(cal.YEAR);
Integer[] isi = new
Integer[60];
for(int i = 0; i < 60
; i++){
isi[i] = awal - i;
}
DefaultComboBoxModel dcm
= new DefaultComboBoxModel(isi);
cmb_y.setModel(dcm);
}
private void isicmbtanggal(){
int awal = 1;
Integer[] isi = new
Integer[31];
for(int i = 0; i < 31;
i++ ){
isi[i] = awal + i;
}
DefaultComboBoxModel ycm
= new DefaultComboBoxModel(isi);
cmb_d.setModel(ycm);
}
private void setHariIni(){
java.util.Calendar cal =
java.util.Calendar.getInstance();
int d =
cal.get(cal.DAY_OF_MONTH);
int m =
cal.get(cal.MONTH);
int y =
cal.get(cal.YEAR);
cmb_d.setSelectedItem(d);
cmb_m.setSelectedIndex(m);
cmb_y.setSelectedItem(y);
}
private void
validasitanggal(){
int d =
Integer.parseInt(cmb_d.getSelectedItem().toString());
int m =
cmb_m.getSelectedIndex();
int y = Integer.parseInt(cmb_y.getSelectedItem().toString());
if(y % 4 == 0){
max[1] = 29;
}else{
max[1] = 28;
}
if(d > max[m]){
cmb_d.setSelectedItem(max[m]);
}
}
private String getTanggal(){
int d =
Integer.parseInt(cmb_d.getSelectedItem().toString());
int m =
cmb_m.getSelectedIndex()+1;
int y =
Integer.parseInt(cmb_y.getSelectedItem().toString());
String tgl = d +
"/" + m + "/" + y;
return tgl;
}
/** 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")
//
private void initComponents()
{
jPanel1 = new
javax.swing.JPanel();
cmb_d = new
javax.swing.JComboBox();
cmb_m = new
javax.swing.JComboBox();
cmb_y = new
javax.swing.JComboBox();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1.setBorder(javax.swing.BorderFactory.createLineBorder(new
java.awt.Color(0, 0, 0)));
cmb_d.addItemListener(new
java.awt.event.ItemListener() {
public void
itemStateChanged(java.awt.event.ItemEvent evt) {
cmb_dItemStateChanged(evt);
}
});
cmb_m.setModel(new
javax.swing.DefaultComboBoxModel(new String[] { "Januari",
"Februari", "Maret", "April", "Mei",
"Juni", "Juli", "Agustus", "September",
"Oktober", "November", "Desember" }));
cmb_m.addItemListener(new
java.awt.event.ItemListener() {
public void
itemStateChanged(java.awt.event.ItemEvent evt) {
cmb_mItemStateChanged(evt);
}
});
cmb_y.addItemListener(new
java.awt.event.ItemListener() {
public void
itemStateChanged(java.awt.event.ItemEvent evt) {
cmb_yItemStateChanged(evt);
}
});
javax.swing.GroupLayout
jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(cmb_d, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(cmb_m, javax.swing.GroupLayout.PREFERRED_SIZE, 101,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(cmb_y, 0, 68, Short.MAX_VALUE)
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(cmb_d,
javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cmb_m, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cmb_y, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
javax.swing.GroupLayout
layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(26, Short.MAX_VALUE))
);
pack();
}//
private void
cmb_dItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling
code here:
validasitanggal();
}
private void
cmb_mItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling
code here:
validasitanggal();
}
private void
cmb_yItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling
code here:
validasitanggal();
}
/**
* @param args the command
line arguments
*/
public static void
main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new
tanggal1().setVisible(true);
}
});
}
// Variables declaration - do
not modify
private javax.swing.JComboBox
cmb_d;
private javax.swing.JComboBox
cmb_m;
private javax.swing.JComboBox
cmb_y;
private javax.swing.JPanel
jPanel1;
// End of variables
declaration
}
Langkah ketiga :
Buat library
1.
new project > java class
library
2.
beri nama project (library_ku)
3.
buat jpanel baru beri nama “tanggal”
4.
copy paste cmb_D, cmb_M,
cmb_Y dari project sebelumnya (tanggal.java)
5.
copy paste seperti pada
gambar berikut :
6.
copykan semua fungsi dari
project sebelumnya seperti :
a.
fungsi isicmbtahun ()
b.
fungsi isismbtanggal ()
c.
fungsi sethariini ()
d.
fungsi validasi tanggal ()
e.
dan setiap even pada combo
box
7.
klik kanan pada project
library_ku > new > java package
8.
beri nama packagename
dengan “lbtanggal”
9.
klik kanan pada project
lbtanggal > new > java class
10.
beri nama pnltanggal
11.
copy paste semua source
code dari jpanel tanggal.java
12.
rubah beberapa coding
seperti berikut :
i)
public class pnltgl
> public
class pnltgl extends javax.swing.JPanel
ii)
public tanggal1()
> public
pnltanggal()
13.
klik kanan pada project
library_ku > clean and bulid
source coding keseluruhan :
package lbtanggal;
import javax.swing.DefaultComboBoxModel;
/**
*
* @author
*/
public class pnltanggal extends
javax.swing.JPanel {
int[] max =
{31,28,31,30,31,30,31,31,30,31,30,31};
/** Creates new form tanggal1 */
public pnltanggal() {
initComponents();
isicmbtahun();
isicmbtanggal();
setHariIni();
}
private void isicmbtahun(){
java.util.Calendar cal =
java.util.Calendar.getInstance();
int awal = cal.get(cal.YEAR);
Integer[] isi = new Integer[60];
for(int i = 0; i < 60 ; i++){
isi[i] = awal - i;
}
DefaultComboBoxModel dcm = new
DefaultComboBoxModel(isi);
cmb_y.setModel(dcm);
}
private void isicmbtanggal(){
int awal = 1;
Integer[] isi = new Integer[31];
for(int i = 0; i < 31; i++ ){
isi[i] = awal + i;
}
DefaultComboBoxModel ycm = new
DefaultComboBoxModel(isi);
cmb_d.setModel(ycm);
}
private void setHariIni(){
java.util.Calendar cal =
java.util.Calendar.getInstance();
int d = cal.get(cal.DAY_OF_MONTH);
int m = cal.get(cal.MONTH);
int y = cal.get(cal.YEAR);
cmb_d.setSelectedItem(d);
cmb_m.setSelectedIndex(m);
cmb_y.setSelectedItem(y);
}
private void validasitanggal(){
int d =
Integer.parseInt(cmb_d.getSelectedItem().toString());
int m = cmb_m.getSelectedIndex();
int y =
Integer.parseInt(cmb_y.getSelectedItem().toString());
if(y % 4 == 0){
max[1] = 29;
}else{
max[1] = 28;
}
if(d > max[m]){
cmb_d.setSelectedItem(max[m]);
}
}
private String getTanggal(){
int d = Integer.parseInt(cmb_d.getSelectedItem().toString());
int m = cmb_m.getSelectedIndex()+1;
int y =
Integer.parseInt(cmb_y.getSelectedItem().toString());
String tgl = d + "/" + m +
"/" + y;
return tgl;
}
/** 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")
//
private void initComponents() {
cmb_d = new javax.swing.JComboBox();
cmb_m = new javax.swing.JComboBox();
cmb_y = new javax.swing.JComboBox();
cmb_d.addItemListener(new
java.awt.event.ItemListener() {
public void
itemStateChanged(java.awt.event.ItemEvent evt) {
cmb_dItemStateChanged(evt);
}
});
cmb_m.setModel(new
javax.swing.DefaultComboBoxModel(new String[] { "Januari",
"Februari", "Maret", "April", "Mei",
"Juni", "Juli", "Agustus", "September",
"Oktober", "November", "Desember" }));
cmb_m.addItemListener(new
java.awt.event.ItemListener() {
public void
itemStateChanged(java.awt.event.ItemEvent evt) {
cmb_mItemStateChanged(evt);
}
});
cmb_y.addItemListener(new
java.awt.event.ItemListener() {
public void
itemStateChanged(java.awt.event.ItemEvent evt) {
cmb_yItemStateChanged(evt);
}
});
javax.swing.GroupLayout layout = new
javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(cmb_d,
javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(cmb_m,
javax.swing.GroupLayout.PREFERRED_SIZE, 101,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(cmb_y, javax.swing.GroupLayout.PREFERRED_SIZE,
97, javax.swing.GroupLayout.PREFERRED_SIZE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(cmb_d,
javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cmb_m,
javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cmb_y,
javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.PREFERRED_SIZE))
);
}//
private void
cmb_dItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling code here:
validasitanggal();
}
private void
cmb_mItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling code here:
validasitanggal();
}
private void
cmb_yItemStateChanged(java.awt.event.ItemEvent evt) {
// TODO add your handling code here:
validasitanggal();
}
// Variables declaration - do not modify
private javax.swing.JComboBox cmb_d;
private javax.swing.JComboBox cmb_m;
private javax.swing.JComboBox cmb_y;
}
Lankah keempat :
1.
klik kanan palette >
create new category
2.
beri nama “my_lib”
3.
klik kanan pada my_lib >
palette manager > add form jar
4.
cari dimana anda menyimpan
project library_ku > folder dist > library_ku.jar
5.
pilih pnltanggal > next
> pilih my_lib > finish > close
6.
buka palette > my_lib
> pnltanggal