1. Langkah awal adalah buka :
eclipse > New > Java Project
2. Setelah anda lakukan langkah di atas, akan muncul tampilan seperti di bawah ini.
Beri nama Calculator
3. Setelah itu klik
New > Package
4. Lalu akan muncul tampilan sepeti di bawah ini. Kemudian beri nama Calculator, setelah itu klik "finish"
5. yang anda lakukan selanjutnya adalah klik
New > Class
6. Lalu akan muncul tampilan seperti ini, selanjutnya beri nama Main, kemudian klik "finish"
7. setelah anda klik "finish", maka akan muncul tampilan seperti di bawah ini. Setelah itu, anda tinggal memasukkan source code :
package calculator;
import view.CalculatorView;
public class Main {
public static void main(String[] args) {
new CalculatorView().setVisible(true);
}
}
8. setelah anda memasukkan source coode, langkah selanjutnya adaalah, anda klik New > Package, maka akan muncul tampilan seperti di bawah ini, selanjutnya anda beri nama Model lalu klik "finish"
9. Langkah selanjutnya klik New > Class, maka akan muncul tampilan seprti di bawah, lalu masukkan nama CalculatorModel
10. Setelah itu akan muncul tampilan seperti di bawah, berikutnya anda tinggal masukkan source code :
package model;
public class CalculatorModel {
int operator=0;
double operand1=0;
double operand2=0;
double result=0;
public void setOperand(String opr) {
if(!opr.equals("")){
if(operator==0){
operand1=Double.valueOf(opr);
}else{
operand2=Double.valueOf(opr);
}
}
}
public void setOperator(int operator) {
this.operator = operator;
}
public double getResult() {
return result;
}
public void setResult(double hasil) {
this.result = hasil;
}
public void process(){
switch (operator){
case 1:
result = operand1 + operand2;
break;
case 2:
result = operand1 - operand2;
break;
case 3:
result = operand1 * operand2;
break;
case 4:
result = operand1 / operand2;
break;
case 5:
result = operand1 % operand2;
break;
case 6:
result = 1/operand1;
break;
default: result = operand1;
}
operand1=result;
}
public void setOperand1(double operand1) {
this.operand1 = operand1;
}
public void setOperand2(double operand2) {
this.operand2 = operand2;
}
public void clear(){
setOperand1(0);
setOperand2(0);
setResult(0);
setOperator(0);
}
}
11. Setelah anda memasukkan sourct code, anda klik New > Package, maka akan muncul tampilan seperti di bawah ini, lalu beri nama View
12. setelah itu anda klik New > Class, kemudian beri nama CalculatorView
13. maka akan muncul tampilan seperti di bawah, lalu anda masukkan source code :
package view;
import java.text.DecimalFormat;
import model.CalculatorModel;
public class CalculatorView extends javax.swing.JFrame {
private static final long serialVersionUID = 1L;
public CalculatorView() {
initComponents();
}
CalculatorModel model = new CalculatorModel();
String operand="";
public void getOperand(javax.swing.JButton button){
operand+=button.getText();
model.setOperand(operand);
resultLabel.setText(operand);
}
private void getOperator(int opt){
model.setOperator(opt);
operand="";
}
private void process(){
DecimalFormat df = new DecimalFormat("#,###.########");
model.process();
operand = "";
resultLabel.setText(df.format(model.getResult())+"");
}
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
resultLabel = new javax.swing.JLabel();
jPanel2 = new javax.swing.JPanel();
button7 = new javax.swing.JButton();
button4 = new javax.swing.JButton();
button1 = new javax.swing.JButton();
buttonKoma = new javax.swing.JButton();
button11 = new javax.swing.JButton();
button12 = new javax.swing.JButton();
button2 = new javax.swing.JButton();
button3 = new javax.swing.JButton();
button5 = new javax.swing.JButton();
button6 = new javax.swing.JButton();
button8 = new javax.swing.JButton();
button9 = new javax.swing.JButton();
jPanel3 = new javax.swing.JPanel();
buttonBagi = new javax.swing.JButton();
buttonKali = new javax.swing.JButton();
buttonKurang = new javax.swing.JButton();
buttonTambah = new javax.swing.JButton();
buttonAC = new javax.swing.JButton();
buttonModulus = new javax.swing.JButton();
buttonSeper = new javax.swing.JButton();
buttonSamaDengan = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Calculator");
jPanel1.setBackground(new java.awt.Color(255,255,255));
resultLabel.setBackground(new java.awt.Color(255, 255, 255));
resultLabel.setFont(new java.awt.Font("Microsoft Sans Serif", 0, 36));
resultLabel.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
resultLabel.setText("0");
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(resultLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 268, Short.MAX_VALUE)
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(resultLabel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
jPanel2.setBackground(new java.awt.Color(255, 255, 255));
button7.setText("7");
button7.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button7ActionPerformed(evt);
}
});
button4.setText("4");
button4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button4ActionPerformed(evt);
}
});
button1.setText("1");
button1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button1ActionPerformed(evt);
}
});
buttonKoma.setText(".");
buttonKoma.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonKomaActionPerformed(evt);
}
});
button11.setText("0");
button11.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button11ActionPerformed(evt);
}
});
button12.setText("C");
button12.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button12ActionPerformed(evt);
}
});
button2.setText("2");
button2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button2ActionPerformed(evt);
}
});
button3.setText("3");
button3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button3ActionPerformed(evt);
}
});
button5.setText("5");
button5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button5ActionPerformed(evt);
}
});
button6.setText("6");
button6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button6ActionPerformed(evt);
}
});
button8.setText("8");
button8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button8ActionPerformed(evt);
}
});
button9.setText("9");
button9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button9ActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(button7, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button8, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button9, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(button4, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button5, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button6, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(button1, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button2, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button3, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(buttonKoma, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button11, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(button12, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(button7, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button8, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button9, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(button4, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button5, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button6, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(button1, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button2, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button3, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(buttonKoma, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button11, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(button12, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel3.setBackground(new java.awt.Color(255, 255, 255));
buttonBagi.setText("/");
buttonBagi.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonBagiActionPerformed(evt);
}
});
buttonKali.setText("*");
buttonKali.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonKaliActionPerformed(evt);
}
});
buttonKurang.setText("-");
buttonKurang.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonKurangActionPerformed(evt);
}
});
buttonTambah.setText("+");
buttonTambah.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonTambahActionPerformed(evt);
}
});
buttonAC.setText("AC");
buttonAC.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonACActionPerformed(evt);
}
});
buttonModulus.setText("%");
buttonModulus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonModulusActionPerformed(evt);
}
});
buttonSeper.setText("1/x");
buttonSeper.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonSeperActionPerformed(evt);
}
});
buttonSamaDengan.setText("=");
buttonSamaDengan.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buttonSamaDenganActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addComponent(buttonKurang, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(buttonSeper, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel3Layout.createSequentialGroup()
.addComponent(buttonTambah, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(buttonSamaDengan, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel3Layout.createSequentialGroup()
.addComponent(buttonKali, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(buttonModulus, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel3Layout.createSequentialGroup()
.addComponent(buttonBagi, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(buttonAC, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap())
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(buttonBagi, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(buttonAC, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(buttonKali, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(buttonModulus, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(buttonKurang, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(buttonSeper, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(buttonTambah, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(buttonSamaDengan, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(14, Short.MAX_VALUE))
);
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)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}
private void button1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button1ActionPerformed
getOperand(button1);
}
private void button2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button2ActionPerformed
getOperand(button2);
}
private void button3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button3ActionPerformed
getOperand(button3);
}
private void button4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button4ActionPerformed
getOperand(button4);
}
private void button5ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button5ActionPerformed
getOperand(button5);
}
private void button6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button6ActionPerformed
getOperand(button6);
}
private void button7ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button7ActionPerformed
getOperand(button7);
}
private void button8ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button8ActionPerformed
getOperand(button8);
}
private void button9ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button9ActionPerformed
getOperand(button9);
}
private void buttonTambahActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonTambahActionPerformed
getOperator(1);
}
private void buttonKurangActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonKurangActionPerformed
getOperator(2);
}
private void buttonKaliActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonKaliActionPerformed
getOperator(3);
}
private void buttonBagiActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonBagiActionPerformed
getOperator(4);
}
private void buttonModulusActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonModulusActionPerformed
getOperator(5);
}
private void buttonSeperActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonSeperActionPerformed
getOperator(6);
}
private void buttonSamaDenganActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonSamaDenganActionPerformed
process();
}
private void button11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button11ActionPerformed
getOperand(button11);
}
private void buttonKomaActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonKomaActionPerformed
getOperand(buttonKoma);
}
private void button12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button12ActionPerformed
if(operand.length()>1){
operand = operand.substring(0, operand.length()-1);
model.setOperand(operand);
resultLabel.setText(operand);
}else{
operand = "";
model.setOperand(operand);
resultLabel.setText("0");
}
}
private void buttonACActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonACActionPerformed
operand = "";
model.setOperator(0);
model.setResult(0);
resultLabel.setText("0");
}
private javax.swing.JButton button1;
private javax.swing.JButton button11;
private javax.swing.JButton button12;
private javax.swing.JButton button2;
private javax.swing.JButton button3;
private javax.swing.JButton button4;
private javax.swing.JButton button5;
private javax.swing.JButton button6;
private javax.swing.JButton button7;
private javax.swing.JButton button8;
private javax.swing.JButton button9;
private javax.swing.JButton buttonAC;
private javax.swing.JButton buttonBagi;
private javax.swing.JButton buttonKali;
private javax.swing.JButton buttonKoma;
private javax.swing.JButton buttonKurang;
private javax.swing.JButton buttonModulus;
private javax.swing.JButton buttonSamaDengan;
private javax.swing.JButton buttonSeper;
private javax.swing.JButton buttonTambah;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JLabel resultLabel;
}
14. setelah itu akan muncul tampilan seperti di bawah ini. Calculator siap digunakan
Sekian penjelasan saya mengenai bagaimana cara membuat calculator, semoga bermanfaat,
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