Object Oriented Java Programing Part I

Java Swing  jButton, jRadioButton and jTextField with NetBean

 

This app version indonesia language... you can tray and change language with your language. These applications use the java programming language,... 

Script:

public class hitung extends javax.swing.JFrame {

    public hitung() {

        initComponents();

    }

private void jHitungActionPerformed(java.awt.event.ActionEvent evt)               {                                       

        String a = Textnil1.getText();

        String b = Textnil2.getText();

      if(BtTambah.isSelected()){

        Float L = Float.parseFloat(a)+Float.parseFloat(b);

        jHasil.setText("Hasil : " + L);

      }                                       

      if(BtKali.isSelected()){

        Float L = Float.parseFloat(a)*Float.parseFloat(b);

        jHasil.setText("Hasil : " + L);

      }

      if(BtKurang.isSelected()){

        Float L = Float.parseFloat(a)-Float.parseFloat(b);

        jHasil.setText("Hasil : " + L);

      }

      if(BtBagi.isSelected()){

        Float L = Float.parseFloat(a)/Float.parseFloat(b);

        jHasil.setText("Hasil : " + L);

    }

}

    public static void main(String args[]) {

        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {

                new hitung().setVisible(true);

            }

        });

    }

    private javax.swing.JRadioButton BtBagi;

    private javax.swing.JRadioButton BtKali;

    private javax.swing.JRadioButton BtKurang;

    private javax.swing.JRadioButton BtTambah;

    private javax.swing.ButtonGroup BtnGrup;

    private javax.swing.JTextField Textnil1;

    private javax.swing.JLabel jHasil;

    private javax.swing.JButton jHitung;

    private javax.swing.JLabel jLabel1;

    private javax.swing.JLabel jLabel2;

    private javax.swing.JLabel jLabel3;

}

Output Runing Program: