package kalkulator; public class Calculator extends javax.swing.JFrame { N double num,ans;int calculation; public Calculator() {initComponents();jRadioButton1.setEnabled(false);} public void arithmetic_operation() {switch(calculation) {case 1 :ans= num + Double.parseDouble(jTextField1.getText());jTextField1.setText(Double.toString(ans));break; case 2 :ans= num – Double.parseDouble(jTextField1.getText());jTextField1.setText(Double.toString(ans));break; case 3 :ans= num * Double.parseDouble(jTextField1.getText());jTextField1.setText(Double.toString(ans));break; case 4 :ans= num / Double.parseDouble(jTextField1.getText());jTextField1.setText(Double.toString(ans));break;}} public void enable() {jTextField1.setEnabled(true);jRadioButton1.setEnabled(false);jRadioButton2.setEnabled(true); jButton34.setEnabled(true);jButton36.setEnabled(true);jButton33.setEnabled(true);jButton30.setEnabled(true);jButton29.setEnabled(true);jButton31.setEnabled(true);jButton32.setEnabled(true);jButton26.setEnabled(true);jButton25.setEnabled(true);jButton27.setEnabled(true);jButton22.setEnabled(true);jButton21.setEnabled(true);jButton23.setEnabled(true);jButton24.setEnabled(true);jButton20.setEnabled(true);jButton16.setEnabled(true);jButton2.setEnabled(true);jButton28.setEnabled(true);} public void disable() {jTextField1.setEnabled(false); jRadioButton1.setEnabled(true);jRadioButton2.setEnabled(false);jButton34.setEnabled(false);jButton36.setEnabled(false);jButton33.setEnabled(false);jButton30.setEnabled(false);jButton29.setEnabled(false);jButton31.setEnabled(false);jButton32.setEnabled(false);jButton26.setEnabled(false);jButton25.setEnabled(false);jButton27.setEnabled(false);jButton22.setEnabled(false);jButton21.setEnabled(false);jButton23.setEnabled(false);jButton24.setEnabled(false);jButton20.setEnabled(false);jButton16.setEnabled(false);jButton2.setEnabled(false);jButton28.setEnabled(false);} @SuppressWarnings(“unchecked”)Generated code private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code …
Lanjutkan membaca “Contoh Coding Membuat Kalkulator Sederhana”