NURJAMAN

Buka aplikasi netbean kemudian buat new project ( File > New Project) tampilan sebagai berikut:

>> GAMBAR 1

Ketikan nama projectnya (contoh: KonversiMataUang). Hilangkan centang pada Create Main Class,

>> GAMBAR 2

kemudian klik finish,
selanjutnya mendesain frame yang akan kita buat

>> GAMBAR 3

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("APLIKASI TRANSAKSI WARUNG NURJAMAN");

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("Jumlah");

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 Pembayaran");

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.TRAILING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 545, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jLabel2)
.addGap(18, 18, 18)
.addComponent(cboBarang, javax.swing.GroupLayout.PREFERRED_SIZE, 204, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jLabel4)
.addGap(23, 23, 23)
.addComponent(jLabel5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lblHarga, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE))
.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)
.addGap(84, 84, 84)
.addComponent(btnSimpan)
.addGap(18, 18, 18)
.addComponent(btnHapus)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel6)
.addComponent(chkPPN)
.addComponent(jLabel9))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel10)
.addComponent(jLabel7)
.addComponent(jLabel8, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lblPPN, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lblSubtotal, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lblTotal, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(116, 116, 116))))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel1)
.addGap(77, 77, 77))
);

layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {btnHapus, btnSimpan});

layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jLabel1)
.addGap(18, 18, 18)
.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

klik menu Run >>>> Run Project atau Run File

contoh