Assalamualaikum, . .
Alahamdulillah kita masih diberi kesehatan, setelah beberapa hari fakum, karena beberapa kepentingan yang sangat berat untuk di tinggalkan. Hari ini saya bisa lanjut ngoding lagi, . . hhe
Seperti yang Kita ketahui dan sering Kita alami setiap hari, sebuah usaha di bidang penjualan pasti ada proses jual beli. Proses jual beli dilakukan untuk menjual barang secara kredit maupun tunai. Dalam proses penjualan sangat perlu adanya struk atau bukti transaksi yang dipakai untuk mencatat atau merekam semua proses kegiatan penjualan. Akan tetapi banyak sekali pertokoan yang masih manual menggunakan nota manual dan menghambat pekerjaan kasir. Untuk itu, dibutuhkan suatu alat agar memudahkan kasir untuk mencatat proses penjualan, selain lebih mudah tidak banyak memakan waktu. Terinspirasi dari hal tersebut, Kami mencoba membuat program transaksi penjualan menggunakan Java. Program ini cukup sederhana dan semoga dapat membantu dalam proses penyimpanan data transaksi penjualan.
Berikut ini adalah langkah langakahnya :
1. Buat project baru
Jalankan software Java NetBeans dan membuat sebuah project baru dengan memilih File > New project > buat nama, disini saya memakai nama "AplikasiPenjualan".
Setelah itu kita membuat class dengan cara Klik kanan pada package > New > Java class dan buat 3 class dengan nama, seperti: MdlBarang, MdlPenjualan dan Penjualan.
a. Buat script pada class MdlBarang seperti berikut ini :
package aplikasipenjualan;
/**
*
* @author Jannina
*/
public class MdlBarang {
private String namaBarang;
private String satuan;
private double harga;
public MdlBarang(String namaBarang, String Satuan, double harga) {
this.namaBarang = namaBarang;
this.harga = harga;
}
@Override
public String toString(){
return this.namaBarang;
}
public String getNamaBarang(){
return namaBarang;
}
public void namaBarang( String namaBarang){
this.namaBarang = namaBarang;
}
public String getSatuan(){
return satuan;
}
public void setSatuan(String satuan) {
this.satuan = satuan;
}
public double getHarga(){
return harga;
}
public void setHarga(double harga){
this.harga = harga;
}
}
b. Buat script pada class MdlPenjualan seperti berikut ini :
package aplikasipenjualan;
/**
*
* @author Jannina
*/
public class MdlPenjualan {
private double subTotal=0;
private double ppn=0;
private double total=0;
private DefaultTableModel tabel = new DefaultTableModel();
public ModelPenjualan(){
getTabel().addColumn("Barang");
getTabel().addColumn("Harga");
getTabel().addColumn("Qty");
getTabel().addColumn("Satuan");
getTabel().addColumn("Jumlah");
}
public double countSubtotal(){
subTotal=0;
for (int i=0;i<tabel.getRowCount();i++){
subTotal=subTotal+Double.parseDouble(tabel.getValueAt(i, 4).toString());
}
return subTotal;
}
public double countPPN(){
ppn=subTotal*0.1;
return ppn;
}
public double countTotal(){
total=subTotal+ppn;
return total;
}
public double getSubTotal() {
return subTotal;
}
public void setSubTotal(double subTotal) {
this.subTotal = subTotal;
}
public double getPpn() {
return ppn;
}
public void setPpn(double ppn) {
this.ppn = ppn;
}
public double getTotal() {
return total;
}
public void setTotal(double total) {
this.total = total;
}
public DefaultTableModel getTabel() {
return tabel;
}
public void setTabel(DefaultTableModel tabel) {
this.tabel = tabel;
}
}
c. Untuk menghubungkan antara class dan desain frame Anda dapat membuat script pada class AplikasiPenjualan seperti berikut ini :
package aplikasipenjualan;
/**
*
* @author Jannina
*/
public class AplikasiPenjualan {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
AIPenjualan penjualan = new AIPenjualan();
penjualan.setVisible(true);
}
}
Buat desain Frame untuk tampilan program Anda dengan cara Klik kanan pada package > New > JFrame Form > buat nama frame dengan nama "AIPenjualan" :
2. Buat tampilan frame AIPenjualan.
Buatlah coding dari fram AIPenjualan :
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package penjualan;
import java.awt.event.KeyEvent;
import java.text.NumberFormat;
import javax.swing.table.TableColumn;
public class UIPenjualan extends javax.swing.JFrame {
mdlBarang barang;
mdlPenjualan penjualan=new mdlPenjualan();
public UIPenjualan() {
initComponents();
fillComboBarang();
tblBarang.setModel(penjualan.getTabel());
}
private void fillComboBarang(){
mdlBarang barang1 = new mdlBarang("Susu", "Kaleng", 11000);
mdlBarang barang2 = new mdlBarang("Rokok", "Bungkus", 16000);
mdlBarang barang3 = new mdlBarang("Snack", "Bungkus", 6500);
mdlBarang barang4 = new mdlBarang("Sabun", "Batang", 2000);
cboBarang.addItem(barang1);
cboBarang.addItem(barang2);
cboBarang.addItem(barang3);
cboBarang.addItem(barang4);
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
cboBarang = new javax.swing.JComboBox();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
lblHarga = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
lblSatuan = new javax.swing.JLabel();
txtQuantity = new javax.swing.JTextField();
jScrollPane1 = new javax.swing.JScrollPane();
tblBarang = new javax.swing.JTable();
btnSimpan = new javax.swing.JButton();
jLabel6 = new javax.swing.JLabel();
jLabel7 = new javax.swing.JLabel();
lblSubtotal = new javax.swing.JLabel();
chkPPN = new javax.swing.JCheckBox();
jLabel8 = new javax.swing.JLabel();
lblPPN = new javax.swing.JLabel();
jLabel9 = new javax.swing.JLabel();
jLabel10 = new javax.swing.JLabel();
lblTotal = new javax.swing.JLabel();
btnHapus = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jLabel1.setText("Program Transaksi Penjualan");
jLabel2.setText("Barang");
cboBarang.setNextFocusableComponent(txtQuantity);
cboBarang.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cboBarangActionPerformed(evt);
}
});
jLabel3.setText("Quantity");
jLabel4.setText("Harga");
lblHarga.setText("00");
jLabel5.setText("Rp.");
lblSatuan.setText("jLabel6");
txtQuantity.setNextFocusableComponent(btnSimpan);
txtQuantity.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyPressed(java.awt.event.KeyEvent evt) {
txtQuantityKeyPressed(evt);
}
});
tblBarang.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
));
jScrollPane1.setViewportView(tblBarang);
btnSimpan.setText("Simpan");
btnSimpan.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSimpanActionPerformed(evt);
}
});
jLabel6.setText("Subtotal :");
jLabel7.setText("Rp.");
lblSubtotal.setText("00");
chkPPN.setText("PPN");
chkPPN.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
chkPPNActionPerformed(evt);
}
});
jLabel8.setText("Rp.");
lblPPN.setText("00");
jLabel9.setText("Total");
jLabel10.setText("Rp.");
lblTotal.setText("00");
btnHapus.setText("Hapus");
btnHapus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnHapusActionPerformed(evt);
}
});
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()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel4))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(lblHarga, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(cboBarang, javax.swing.GroupLayout.PREFERRED_SIZE, 204, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(txtQuantity, javax.swing.GroupLayout.PREFERRED_SIZE, 74, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(lblSatuan)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(btnSimpan)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnHapus))
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 545, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(142, 142, 142)
.addComponent(jLabel1)))
.addGap(0, 0, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jLabel9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel10)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(lblTotal, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel6)
.addComponent(chkPPN))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel8)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(lblPPN, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel7)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(lblSubtotal, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE)))))))
.addContainerGap())
);
layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {btnHapus, btnSimpan});
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)
.addGap(25, 25, 25)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(cboBarang, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(lblHarga)
.addComponent(jLabel5))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(lblSatuan)
.addComponent(txtQuantity, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnHapus)
.addComponent(btnSimpan))
.addGap(18, 18, 18)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 153, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel6)
.addComponent(lblSubtotal)
.addComponent(jLabel7))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(chkPPN)
.addComponent(lblPPN)
.addComponent(jLabel8))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel9)
.addComponent(lblTotal)
.addComponent(jLabel10))
.addContainerGap(29, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void txtQuantityKeyPressed(java.awt.event.KeyEvent evt) {
if(evt.getKeyCode()==KeyEvent.VK_ENTER)
btnSimpan.requestFocus();
}
private void cboBarangActionPerformed(java.awt.event.ActionEvent evt) {
barang = (mdlBarang)cboBarang.getSelectedItem();
lblHarga.setText(NumberFormat.getNumberInstance().format(barang.getHarga()));
lblSatuan.setText(barang.getSatuan());
}
private void btnSimpanActionPerformed(java.awt.event.ActionEvent evt) {
String[] data = new String[5];
double harga, jumlah=0;
int qty=0;
data[0]=barang.getNamaBarang();
harga=barang.getHarga();
data[1]=String.valueOf(barang.getHarga());
qty=Integer.parseInt(txtQuantity.getText());
data[2]=txtQuantity.getText();
data[3]=barang.getSatuan();
jumlah=harga*qty;
data[4]=String.valueOf(jumlah);
penjualan.getTabel().addRow(data);
lblSubtotal.setText(NumberFormat.getNumberInstance().format(penjualan.countSubtotal()));
chkPPNActionPerformed(null);
cboBarang.requestFocus();
}
private void chkPPNActionPerformed(java.awt.event.ActionEvent evt) {
if (chkPPN.isSelected())
lblPPN.setText(NumberFormat.getNumberInstance().format(penjualan.countPPN()));
else{
lblPPN.setText("0");
penjualan.setPpn(0);
}
lblTotal.setText(NumberFormat.getNumberInstance().format(penjualan.countTotal()));
}
private void btnHapusActionPerformed(java.awt.event.ActionEvent evt) {
penjualan.getTabel().removeRow(tblBarang.getSelectedRow());
lblSubtotal.setText(NumberFormat.getNumberInstance().format(penjualan.countSubtotal()));
chkPPNActionPerformed(null);
}
/**
* @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(UIPenjualan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(UIPenjualan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(UIPenjualan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(UIPenjualan.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 UIPenjualan().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btnHapus;
private javax.swing.JButton btnSimpan;
private javax.swing.JComboBox cboBarang;
private javax.swing.JCheckBox chkPPN;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel10;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JLabel jLabel8;
private javax.swing.JLabel jLabel9;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JLabel lblHarga;
private javax.swing.JLabel lblPPN;
private javax.swing.JLabel lblSatuan;
private javax.swing.JLabel lblSubtotal;
private javax.swing.JLabel lblTotal;
private javax.swing.JTable tblBarang;
private javax.swing.JTextField txtQuantity;
// End of variables declaration
}
Berikut ini adlah tampilan dari program diatas :
Semoga bermanfaat, . .
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