SCREENSHOT APLIKASI KALKULATOR SEDERHANA
Berikut source code nya:
package kalkulator_rws;
public class KALKULATOR extends javax.swing.JFrame {
double result, a, b;
String num;
char i;
/** Creates new form KALKULATOR */
public KALKULATOR() {
initComponents();
num = "";
}
@SuppressWarnings("unchecked")
//
private void initComponents() {
mainPanel = new javax.swing.JPanel();
jPanel1 = new javax.swing.JPanel();
no1 = new javax.swing.JButton();
no2 = new javax.swing.JButton();
no3 = new javax.swing.JButton();
no4 = new javax.swing.JButton();
no5 = new javax.swing.JButton();
no6 = new javax.swing.JButton();
no7 = new javax.swing.JButton();
no8 = new javax.swing.JButton();
no9 = new javax.swing.JButton();
titik = new javax.swing.JButton();
no0 = new javax.swing.JButton();
samadengan = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
delete = new javax.swing.JButton();
bagi = new javax.swing.JButton();
kali = new javax.swing.JButton();
tambah = new javax.swing.JButton();
kurang = new javax.swing.JButton();
clear = new javax.swing.JButton();
exit = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("KALKULATOR");
setResizable(false);
mainPanel.setBackground(new java.awt.Color(51, 51, 51));
jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.LOWERED));
jPanel1.setAlignmentX(0.0F);
jPanel1.setPreferredSize(new java.awt.Dimension(164, 160));
no1.setBackground(new java.awt.Color(0, 0, 0));
no1.setFont(new java.awt.Font("Tahoma", 1, 12));
no1.setForeground(new java.awt.Color(255, 255, 255));
no1.setText("1");
no1.setPreferredSize(new java.awt.Dimension(45, 30));
no1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no1ActionPerformed(evt);
}
});
no2.setBackground(new java.awt.Color(0, 0, 0));
no2.setFont(new java.awt.Font("Tahoma", 1, 12));
no2.setForeground(new java.awt.Color(255, 255, 255));
no2.setText("2");
no2.setPreferredSize(new java.awt.Dimension(45, 30));
no2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no2ActionPerformed(evt);
}
});
no3.setBackground(new java.awt.Color(0, 0, 0));
no3.setFont(new java.awt.Font("Tahoma", 1, 12));
no3.setForeground(new java.awt.Color(255, 255, 255));
no3.setText("3");
no3.setPreferredSize(new java.awt.Dimension(45, 30));
no3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no3ActionPerformed(evt);
}
});
no4.setBackground(new java.awt.Color(0, 0, 0));
no4.setFont(new java.awt.Font("Tahoma", 1, 12));
no4.setForeground(new java.awt.Color(255, 255, 255));
no4.setText("4");
no4.setPreferredSize(new java.awt.Dimension(45, 30));
no4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no4ActionPerformed(evt);
}
});
no5.setBackground(new java.awt.Color(0, 0, 0));
no5.setFont(new java.awt.Font("Tahoma", 1, 12));
no5.setForeground(new java.awt.Color(255, 255, 255));
no5.setText("5");
no5.setPreferredSize(new java.awt.Dimension(45, 30));
no5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no5ActionPerformed(evt);
}
});
no6.setBackground(new java.awt.Color(0, 0, 0));
no6.setFont(new java.awt.Font("Tahoma", 1, 12));
no6.setForeground(new java.awt.Color(255, 255, 255));
no6.setText("6");
no6.setPreferredSize(new java.awt.Dimension(45, 30));
no6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no6ActionPerformed(evt);
}
});
no7.setBackground(new java.awt.Color(0, 0, 0));
no7.setFont(new java.awt.Font("Tahoma", 1, 12));
no7.setForeground(new java.awt.Color(255, 255, 255));
no7.setText("7");
no7.setPreferredSize(new java.awt.Dimension(45, 30));
no7.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no7ActionPerformed(evt);
}
});
no8.setBackground(new java.awt.Color(0, 0, 0));
no8.setFont(new java.awt.Font("Tahoma", 1, 12));
no8.setForeground(new java.awt.Color(255, 255, 255));
no8.setText("8");
no8.setPreferredSize(new java.awt.Dimension(45, 30));
no8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no8ActionPerformed(evt);
}
});
no9.setBackground(new java.awt.Color(0, 0, 0));
no9.setFont(new java.awt.Font("Tahoma", 1, 12));
no9.setForeground(new java.awt.Color(255, 255, 255));
no9.setText("9");
no9.setPreferredSize(new java.awt.Dimension(45, 30));
no9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no9ActionPerformed(evt);
}
});
titik.setBackground(new java.awt.Color(0, 0, 0));
titik.setFont(new java.awt.Font("Tahoma", 1, 12));
titik.setForeground(new java.awt.Color(255, 255, 255));
titik.setText(".");
titik.setPreferredSize(new java.awt.Dimension(45, 30));
titik.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
titikActionPerformed(evt);
}
});
no0.setBackground(new java.awt.Color(0, 0, 0));
no0.setFont(new java.awt.Font("Tahoma", 1, 12));
no0.setForeground(new java.awt.Color(255, 255, 255));
no0.setText("0");
no0.setPreferredSize(new java.awt.Dimension(45, 30));
no0.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
no0ActionPerformed(evt);
}
});
samadengan.setBackground(new java.awt.Color(0, 0, 0));
samadengan.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
samadengan.setForeground(new java.awt.Color(255, 255, 255));
samadengan.setText("=");
samadengan.setDefaultCapable(false);
samadengan.setPreferredSize(new java.awt.Dimension(45, 30));
samadengan.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
samadenganActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(no4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(titik, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no7, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(no2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no8, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no0, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(samadengan, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no6, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no9, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(no3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(no9, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(no6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(no3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(samadengan, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(36, 36, 36)
.addComponent(no5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(no2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(no0, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(no8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(no7, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(no4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(no1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(titik, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
jTextField1.setEditable(false);
jTextField1.setFont(new java.awt.Font("Comic Sans MS", 1, 14));
delete.setFont(new java.awt.Font("Tahoma", 1, 12));
delete.setText("DEL");
delete.setEnabled(false);
delete.setPreferredSize(new java.awt.Dimension(58, 30));
delete.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
deleteActionPerformed(evt);
}
});
bagi.setFont(new java.awt.Font("Tahoma", 1, 12));
bagi.setText("÷");
bagi.setEnabled(false);
bagi.setPreferredSize(new java.awt.Dimension(45, 26));
bagi.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
bagiActionPerformed(evt);
}
});
kali.setFont(new java.awt.Font("Tahoma", 1, 12));
kali.setText("*");
kali.setEnabled(false);
kali.setPreferredSize(new java.awt.Dimension(45, 26));
kali.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
kaliActionPerformed(evt);
}
});
tambah.setFont(new java.awt.Font("Tahoma", 1, 12));
tambah.setText("+");
tambah.setEnabled(false);
tambah.setPreferredSize(new java.awt.Dimension(45, 26));
tambah.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
tambahActionPerformed(evt);
}
});
kurang.setFont(new java.awt.Font("Tahoma", 1, 12));
kurang.setText("-");
kurang.setPreferredSize(new java.awt.Dimension(45, 26));
kurang.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
kurangActionPerformed(evt);
}
});
clear.setFont(new java.awt.Font("Tahoma", 1, 12));
clear.setText("CLEAR");
clear.setActionCommand("");
clear.setPreferredSize(new java.awt.Dimension(58, 30));
clear.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
clearActionPerformed(evt);
}
});
exit.setFont(new java.awt.Font("Tahoma", 1, 12));
exit.setText("EXIT");
exit.setPreferredSize(new java.awt.Dimension(58, 30));
exit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
exitActionPerformed(evt);
}
});
javax.swing.GroupLayout mainPanelLayout = new javax.swing.GroupLayout(mainPanel);
mainPanel.setLayout(mainPanelLayout);
mainPanelLayout.setHorizontalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(8, 8, 8)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(1, 1, 1)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 153, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(kurang, javax.swing.GroupLayout.DEFAULT_SIZE, 56, Short.MAX_VALUE)
.addComponent(tambah, javax.swing.GroupLayout.DEFAULT_SIZE, 56, Short.MAX_VALUE)
.addComponent(kali, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 56, Short.MAX_VALUE)
.addComponent(bagi, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 56, Short.MAX_VALUE)))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mainPanelLayout.createSequentialGroup()
.addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 156, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(delete, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(exit, javax.swing.GroupLayout.PREFERRED_SIZE, 74, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 28, Short.MAX_VALUE)
.addComponent(clear, javax.swing.GroupLayout.PREFERRED_SIZE, 116, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap())
);
mainPanelLayout.setVerticalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE)
.addComponent(delete, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(15, 15, 15)
.addComponent(bagi, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(kali, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(tambah, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(kurang, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(21, 21, 21))
.addGroup(mainPanelLayout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 144, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(8, 8, 8)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(exit, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(clear, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(mainPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(mainPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
);
pack();
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
java.awt.Dimension dialogSize = getSize();
setLocation((screenSize.width-dialogSize.width)/2,(screenSize.height-dialogSize.height)/2);
}//
private void kurangActionPerformed(java.awt.event.ActionEvent evt) {
if (jTextField1.getText().length() == 0){
num += "-";
jTextField1.setText(num);
a = -a;
delete.setEnabled(true);
}
else{
jTextField1.setText("-");
a = Double.parseDouble(num);
num = "";
i = '-';
samadengan.setEnabled(true);
titik.setEnabled(true);
delete.setEnabled(false);
}
// TODO add your handling code here:
}
private void tambahActionPerformed(java.awt.event.ActionEvent evt) {
jTextField1.setText("+");
a = Double.parseDouble(num);
num = "";
i = '+';
samadengan.setEnabled(true);
titik.setEnabled(true);
delete.setEnabled(false);
// TODO add your handling code here:
}
private void kaliActionPerformed(java.awt.event.ActionEvent evt) {
jTextField1.setText("*");
a = Double.parseDouble(num);
num = "";
i = '*';
samadengan.setEnabled(true);
titik.setEnabled(true);
delete.setEnabled(false);
// TODO add your handling code here:
}
private void bagiActionPerformed(java.awt.event.ActionEvent evt) {
jTextField1.setText("÷");
a = Double.parseDouble(num);
i = '÷';
samadengan.setEnabled(true);
titik.setEnabled(true);
delete.setEnabled(false);
// TODO add your handling code here:
}
private void deleteActionPerformed(java.awt.event.ActionEvent evt) {
jTextField1.getText().length();
StringBuilder all = new StringBuilder (jTextField1.getText());
char end = all.charAt(all.length()-1);
all.deleteCharAt(all.length()-1);
jTextField1.setText(all.toString());
num = jTextField1.getText();
if (jTextField1.getText().length() == 0){
delete.setEnabled(false);
titik.setEnabled(true);
bagi.setEnabled(false);
kali.setEnabled(false);
tambah.setEnabled(false);
}
//else if (end == '÷'){
//}
// TODO add your handling code here:
}
private void samadenganActionPerformed(java.awt.event.ActionEvent evt) {
if (i == '-'){
b = Double.parseDouble(num);
result = a - b;
num = Double.toString(result);
jTextField1.setText(num);
}
else if (i == '+'){
b = Double.parseDouble(num);
result = a + b;
num = Double.toString(result);
jTextField1.setText(num);
}
else if (i == '*'){
b = Double.parseDouble(num);
result = a * b;
num = Double.toString(result);
jTextField1.setText(num);
}
else if (i == '÷'){
b = Double.parseDouble(num);
result = a / b;
num = Double.toString(result);
jTextField1.setText(num);
}
else{
jTextField1.setText("");
}
kurang.setEnabled(true);
titik.setEnabled(false);
bagi.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no0ActionPerformed(java.awt.event.ActionEvent evt) {
num += "0";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void titikActionPerformed(java.awt.event.ActionEvent evt) {
num += ".";
jTextField1.setText(num);
titik.setEnabled(false);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no9ActionPerformed(java.awt.event.ActionEvent evt) {
num += "9";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no8ActionPerformed(java.awt.event.ActionEvent evt) {
num += "8";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no7ActionPerformed(java.awt.event.ActionEvent evt) {
num += "7";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no6ActionPerformed(java.awt.event.ActionEvent evt) {
num += "6";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no5ActionPerformed(java.awt.event.ActionEvent evt) {
num += "5";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no4ActionPerformed(java.awt.event.ActionEvent evt) {
num += "4";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no3ActionPerformed(java.awt.event.ActionEvent evt) {
num += "3";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no2ActionPerformed(java.awt.event.ActionEvent evt) {
num += "2";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void no1ActionPerformed(java.awt.event.ActionEvent evt) {
num += "1";
jTextField1.setText(num);
bagi.setEnabled(true);
kali.setEnabled(true);
tambah.setEnabled(true);
delete.setEnabled(true);
// TODO add your handling code here:
}
private void clearActionPerformed(java.awt.event.ActionEvent evt) {
jTextField1.setText("");
titik.setEnabled(true);
num="";
a = 0.0;
b = 0.0;
result = 0.0;
bagi.setEnabled(false);
kali.setEnabled(false);
tambah.setEnabled(false);
delete.setEnabled(false);
// TODO add your handling code here:
}
private void exitActionPerformed(java.awt.event.ActionEvent evt) {
this.setVisible(false);
// TODO add your handling code here:
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//
/* 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(KALKULATOR.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(KALKULATOR.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(KALKULATOR.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(KALKULATOR.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new KALKULATOR().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton bagi;
private javax.swing.JButton clear;
private javax.swing.JButton delete;
private javax.swing.JButton exit;
private javax.swing.JPanel jPanel1;
private javax.swing.JTextField jTextField1;
private javax.swing.JButton kali;
private javax.swing.JButton kurang;
private javax.swing.JPanel mainPanel;
private javax.swing.JButton no0;
private javax.swing.JButton no1;
private javax.swing.JButton no2;
private javax.swing.JButton no3;
private javax.swing.JButton no4;
private javax.swing.JButton no5;
private javax.swing.JButton no6;
private javax.swing.JButton no7;
private javax.swing.JButton no8;
private javax.swing.JButton no9;
private javax.swing.JButton samadengan;
private javax.swing.JButton tambah;
private javax.swing.JButton titik;
// End of variables declaration
}
