Fungsi Terbilang

Kali ini kita akan membuat fungsi terbilang dengan menggunakan program java. Fungsi terbilang itu sendiri adalah misalkan kita menuliskan "999" tanpa tanda kutip, setelah di Convert maka akan tercetak "999=Sembilan ratus sembilan puluh sembilan".

Berikut ini adalah listing code-nya:

//TerbilangJava
import javax.swing.SwingUtilities;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Rectangle;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JTextArea;

class TerbilangJava extends JFrame {
private static final long serialVersionUID = 1L;
private JPanel jContentPane = null;
private JLabel jLabel = null;
private JTextField txtBilangan = null;
private JButton btnTerbilang = null;
private JTextArea jTextArea = null;
private StringBuffer sb = new StringBuffer();

String bilangan[] = new String[] { " ", "satu ", "dua ", "tiga ", "empat ",
"lima ", "enam", "tujuh ", "delapan ", "sembilan ", "sepuluh ",
"sebelas " };
private JButton jButton = null;

//tempat mengetikkan angka
private JTextField getTxtBilangan() {
if (txtBilangan == null) {
txtBilangan = new JTextField();
txtBilangan.setBounds(new Rectangle(135, 15, 166, 31));
}
return txtBilangan;
}
// Tombol Converter
private JButton getBtnTerbilang() {
if (btnTerbilang == null) {
btnTerbilang = new JButton();
btnTerbilang.setBounds(new Rectangle(315, 15, 152, 31));
btnTerbilang.setText("Terbilang");
btnTerbilang.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
jTextArea.setText(" ");
String hasil = generate((double)Integer.parseInt(txtBilangan.getText()));
jTextArea.append(Integer.parseInt(txtBilangan.getText())+" = "+hasil);
txtBilangan.setText(" ");
sb.delete(0, 1000);
}
});
}
return btnTerbilang;
}
//Text Area
private JTextArea getJTextArea() {
if (jTextArea == null) {
jTextArea = new JTextArea();
jTextArea.setBounds(new Rectangle(15, 60, 616, 91));
}
return jTextArea;
}

private JButton getJButton() {
if (jButton == null) {
jButton = new JButton();
jButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
System.out.println("actionPerformed()");

}
});
}
return jButton;
}

public static void main(String[] args) {

SwingUtilities.invokeLater(new Runnable() {
public void run() {
TerbilangJava thisClass = new TerbilangJava();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);
}
});
}

public TerbilangJava() {
super();
initialize();
}
//Luas Frame
private void initialize() {
this.setSize(650, 207);
this.setContentPane(getJContentPane());
this.setTitle("Fungsi Terbilang");
}

//Label Bilangan
private JPanel getJContentPane() {
if (jContentPane == null) {
jLabel = new JLabel();
jLabel.setBounds(new Rectangle(15, 15, 106, 31));
jLabel.setText("Bilangan");
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(jLabel, null);
jContentPane.add(getTxtBilangan(), null);
jContentPane.add(getBtnTerbilang(), null);
jContentPane.add(getJTextArea(), null);
jContentPane.add(getJButton(), null);
}
return jContentPane;
}
public String generate(double number) {

if (number <>= 12 && number <>= 20 && number <>= 100 && number <>= 200 && number <>