Transaksi penjualan merupakan kegiatan yang dilakukan pada toko maupun perusahaan untuk menjual barang secara kredit maupun tunai. Dalam proses penjualan perlu adanya bukti transaksi yang digunakan untuk merekam semua kegiatan penjualan. Oleh karena itu, perlu adanya sebuah program khusus untuk mencatat setiap transaksi penjualan. Proses pencatatan transaksi dapat dilakukan secara manual maupun sistem komputerisasi. Pada kesempatan kali ini Kita akan membahas mengenai program pencatatan transaksi yang dilakukan secara komputerisasi dengan menggunakan software Java NetBeans. Penggunaan Java NetBeans cukup membantu dalam proses penyimpanan data transaksi penjualan maupun pembelian perusahaan. Program yang Kami buat cukup sederhana, semoga dapat membantu memberikan Anda inspirasi untuk membagun program yang lebih lengkap dan dapat diterapkan pada toko maupun perusahaan Anda. Berikut ini cara membuat program sederhana transaksi penjualan menggunakan Java NetBeans:
1. Jalankan software NetBeans
– Anda dapat mejalankan software Java NetBeans dan membuat sebuah project baru dengan memilih File > New project.
– Anda dapat mejalankan software Java NetBeans dan membuat sebuah project baru dengan memilih File > New project.
– Setelah Anda memilih kategori project dan mengisi nama project, selanjutnya Anda dapat membuat class dengan cara Klik kanan pada package > New > Java class dan buat 3 class dengan nama, seperti: ModelBarang, ModelPenjualan dan Penjualan.
– Bila Anda telah membuat class, Anda bisa langsung membuat script pada class ModelBarang seperti berikut ini.
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package penjualan;
/**
*
* @author user
*/
public class ModelBarang {
private String namaBarang;
private String satuan;
private double harga;
public ModelBarang(String namaBarang, String satuan, double harga) {
this.namaBarang = namaBarang;
this.satuan = satuan;
this.harga = harga;
}
@Override
public String toString() {
return this.namaBarang;
}
/**
* @return the namaBarang
*/
public String getNamaBarang() {
return namaBarang;
}
/**
* @param namaBarang the namaBarang to set
*/
public void setNamaBarang(String namaBarang) {
this.namaBarang = namaBarang;
}
/**
* @return the satuan
*/
public String getSatuan() {
return satuan;
}
/**
* @param satuan the satuan to set
*/
public void setSatuan(String satuan) {
this.satuan = satuan;
}
/**
* @return the harga
*/
public double getHarga() {
return harga;
}
/**
* @param harga the harga to set
*/
public void setHarga(double harga) {
this.harga = harga;
}
}
– Selanjutnya buat script pada class ModelPenjualan.
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package penjualan;
/**
*
* @author user
*/
public class Penjualan {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
UIPenjualan penjualan = new UIPenjualan();
penjualan.setVisible(true);
}
}
– Langkah selanjutnya Anda perlu membuat desain Frame untuk tampilan program Anda dengan cara Klik kanan pada package > New > JFrame Form dengan nama frame UIPenjualan
– Buat desain frame transaksi penjualan
– Selanjutnya buat script pada desain frame Anda seperti berikut ini
/*
* 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;
/**
*
* @author user
*/
public class UIPenjualan extends javax.swing.JFrame {
ModelBarang barang;
ModelPenjualan penjualan=new ModelPenjualan();
/**
* Creates new form UIPenjualan
*/
public UIPenjualan() {
initComponents();
fillComboBarang();
tblBarang.setModel(penjualan.getTabel());
}
private void fillComboBarang(){
ModelBarang barang1 = new ModelBarang("Susu", "Kaleng", 11000);
ModelBarang barang2 = new ModelBarang("Rokok", "Bungkus", 16000);
ModelBarang barang3 = new ModelBarang("Snack", "Bungkus", 6500);
ModelBarang barang4 = new ModelBarang("Sabun", "Batang", 2000);
cboBarang.addItem(barang1);
cboBarang.addItem(barang2);
cboBarang.addItem(barang3);
cboBarang.addItem(barang4);
}
/**
* 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() {
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 = (ModelBarang)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
}
2. Jalankan Program yang Anda telah buat
– Setelah Anda selesai membuat class, frame, dan mengisi masing-masing script dan tidak terdapat error, Anda dapat menjalankan program dengan memilih Run Main Project(F6) atau Pilih Project > Klik kanan > Run. Selanjutnya akan muncul program yang telah Anda buat.
– Setelah Anda selesai membuat class, frame, dan mengisi masing-masing script dan tidak terdapat error, Anda dapat menjalankan program dengan memilih Run Main Project(F6) atau Pilih Project > Klik kanan > Run. Selanjutnya akan muncul program yang telah Anda buat.
Thank you very much :)
