package javaRizky;
public class aplikasi_perhitungan extends javax.swing.JFrame {
public aplikasi_perhitungan() {
initComponents();
}
public void hitung(){
int a, b, c;
String pil;
a = Integer.parseInt(txtangka1.getText());
b = Integer.parseInt(txtangka2.getText());
String pilih = (String)cboperator.getSelectedItem();
if(pilih=="PERKALIAN"){
c = a*b;
pil = String.valueOf(" = "+c);
txthasil.setText(pil);
}else if(pilih=="PEMBAGIAN"){
c = a/b;
pil = String.valueOf(" = "+c);
txthasil.setText(pil);
}else if(pilih=="PENJUMLAHAN"){
c = a+b;
pil = String.valueOf(" = "+c);
txthasil.setText(pil);
}else if(pilih=="PENGURANGAN"){
c = a-b;
pil = String.valueOf(" = "+c);
txthasil.setText(pil);
}
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
jPasswordField1 = new javax.swing.JPasswordField();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
txtangka1 = new javax.swing.JTextField();
txtangka2 = new javax.swing.JTextField();
txthasil = new javax.swing.JTextField();
cboperator = new javax.swing.JComboBox<>();
jButton1 = new javax.swing.JButton();
jPasswordField1.setText("jPasswordField1");
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("ANGKA 1");
jLabel2.setText("OPERATOR");
jLabel3.setText("ANGKA 2");
jLabel4.setText("HASIL");
txtangka2.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyReleased(java.awt.event.KeyEvent evt) {
txtangka2KeyReleased(evt);
}
});
cboperator.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "OPERATOR", "PERKALIAN", "PEMBAGIAN", "PENJUMLAHAN", "PENGURANGAN" }));
jButton1.setText("CLEAR");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(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()
.addGap(78, 78, 78)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel4)
.addComponent(jLabel2)
.addComponent(jLabel1)
.addComponent(jLabel3))
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton1)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(txtangka1)
.addComponent(txtangka2)
.addComponent(txthasil)
.addComponent(cboperator, 0, 108, Short.MAX_VALUE)))
.addContainerGap(130, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(56, 56, 56)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(txtangka1, javax.swing.GroupLayout.PREFERRED_SIZE, 27, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(21, 21, 21)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(cboperator))
.addGap(25, 25, 25)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(txtangka2, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(20, 20, 20)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(txthasil, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addComponent(jButton1)
.addContainerGap(30, Short.MAX_VALUE))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void txtangka2KeyReleased(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_txtangka2KeyReleased
// TODO add your handling code here:
hitung();
}//GEN-LAST:event_txtangka2KeyReleased
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
// TODO add your handling code here:
txtangka1.setText("");
txtangka2.setText("");
cboperator.setSelectedItem("OPERATOR");
txthasil.setText("");
}//GEN-LAST:event_jButton1ActionPerformed
/**
* @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(aplikasi_perhitungan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(aplikasi_perhitungan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(aplikasi_perhitungan.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(aplikasi_perhitungan.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 aplikasi_perhitungan().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JComboBox<String> cboperator;
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JPasswordField jPasswordField1;
private javax.swing.JTextField txtangka1;
private javax.swing.JTextField txtangka2;
private javax.swing.JTextField txthasil;
// End of variables declaration//GEN-END:variables
}
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