echo “<script language=’javascript’ type=’text/javascript’ src=’jscripts/tiny_mce/tiny_mce.js’></script>

<script language=’javascript’ type=’text/javascript’>

tinyMCE.init({

theme : ‘advanced’,

mode : ‘textareas’

});

</script>”;

echo “<h2>Posting Informasi</h2>”;

mysql_connect(“localhost”,”root”,”t3l0g0dh0g”);

mysql_select_db(“dbteknikinformatika”);

echo “<form method=POST action=aksipostinginfo.php>

<table>

<tr>

<td>Judul</td>

<td><input type=text name=judulinfo size=50></td>

</tr>

<tr>

<td>Kategori</td>

<td><select name=kategoriinfo>

<option value=0 selected>pilih kategori</option>”;

$querykategori = mysql_query(“SELECT * FROM kategori ORDER BY namakategori”);

while($kategori=mysql_fetch_array($querykategori)){

echo “<option value=$kategori[id]>$kategori[1]</option>”;

}

echo “</select></td>

</tr>

<tr>

<td>Isi</td>

<td><textarea name=isiinfo cols=55 rows=15></textarea></td>

</tr>

<tr>

<td colspan=2><input type=submit value=Simpan></td>

</tr

</table>

</form>”;

?>

— End of Document —

tampilan desktop natty narwhal

wlan atheros terdeteksi otomatis

mozilla firefox 4.0

openoffice.org diganti libreOffice

— End of Document —

pertama, tambahkan dulu repository firefox-04 dengan perintah:
informatika@informatika-Aspire-4720Z:~$ gksu add-apt-repository ppa:ubuntu-mozilla-daily/ppa

kemudian, jangan lupa update repository dengan perintah:
informatika@informatika-Aspire-4720Z:~$ gksu apt-get update

selanjutnya, akhiri dengan printah untuk install firefox-04:
informatika@informatika-Aspire-4720Z:~$ sudo apt-get install firefox-4.0

tinggal tunggu proses installa sampai selesai dech…

berikut tampilan firefox-04 di notebook saya dengan OS ubuntu 10.10:

— End of Document —

Nama program: bubbleSort.java

public class BubbleSort {

public static void main(String[] args) {

int array[] = new int[5];
array[0] = 7;
array[1] = 5;
array[2] = 3;
array[3] = 8;
array[4] = 2;

for(int index=0; index<array.length; index++) {
System.out.print(array[index] + ” “);
}
System.out.println(“”);

int kanan;
int kiri;
for(kanan=array.length-1; kanan>0; kanan–) {
for(kiri=0; kiri<kanan; kiri++) {
if( array[kiri] > array[kiri+1] ) {
int temp = array[kiri];
array[kiri] = array[kiri+1];
array[kiri+1] = temp;
}
}
}

Output program:

7 5 3 8 2
2 3 5 7 8

Nama program: SelectionSort.java

public class SelectionSort {

public static void main(String[] args) {

int array[] = new int[5];

for(int index=0; index<array.length; index++) {
array[index] = (int) (Math.random()*100);
}

for(int index=0; index<array.length; index++) {
System.out.print(array[index] + ” “);
}
System.out.println();

int x, y, min;
for(x=0; x<array.length; x++) {
min = array[x];
for(y=x+1; y<array.length; y++) {
if(array[y] < array[x]) {
min = array[y];
int temp = min;
array[y] = array[x];
array[x] = temp;
}
}
}

for(int index=0; index<array.length; index++) {
System.out.print(array[index] + ” “);
}
System.out.println();
}

}

Output program:

9 69 96 97 47
9 47 69 96 97

Nama program: InsertionSort.java

public class InsertionSort {

public static void main(String[] args) {

int array[] = new int[5];
array[0] = 7;
array[1] = 5;
array[2] = 3;
array[3] = 8;
array[4] = 2;

int a;
int b;

for(int index=0; index<array.length; index++) {
System.out.print(array[index] + ” “);
}
System.out.println(“”);

for(a=1; a<array.length; a++)
{
int temp = array[a];
b = a;
while(b>0 && array[b-1] >= temp)
{
array[b] = array[b-1];
–b;
}
array[b] = temp;
}

for(int index=0; index<array.length; index++) {
System.out.print(array[index] + ” “);
}
System.out.println(“”);
}
}

Output program:

7 5 3 8 2
2 3 5 7 8

SORTING – GUI

Nama program: SortingGui.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class SortingGui {

JPanel panelTengah = new JPanel();
JPanel panelKanan = new JPanel();
JPanel panelBawah = new JPanel();
JPanel panelSemua = new JPanel();
JTextField[] fieldArray = new JTextField[10];
JLabel[] label = new JLabel[10];
JTextField sisipElemen = new JTextField(5);
JButton buttonSisip = new JButton(“Sisip”);
JTextField hapusElemen = new JTextField(5);
JButton buttonHapus = new JButton(“Hapus”);
JButton buttonLinearSort = new JButton(“Linear Sort”);
JButton buttonInsertionSort = new JButton(“Insertion Sort”);
JButton buttonBubbleSort = new JButton(“Bubble Sort”);

SortingGui() {
BorderLayout bl = new BorderLayout();
panelSemua.setLayout(bl);

GridLayout gl = new GridLayout(10, 2);
panelTengah.setLayout(gl);
for (int x = fieldArray.length-1; x >=0; x–) {
panelTengah.add(label[x] = new JLabel(Integer.toString(x)));
panelTengah.add(fieldArray[x] = new JTextField(5));
}
panelSemua.add(“Center”, panelTengah);

GridLayout gl2 = new GridLayout(2, 2);
panelKanan.setLayout(gl2);
panelKanan.add(sisipElemen);
panelKanan.add(buttonSisip);
panelKanan.add(hapusElemen);
panelKanan.add(buttonHapus);
panelSemua.add(“North”, panelKanan);

GridLayout gl3 = new GridLayout(2, 2);
panelBawah.setLayout(gl3);
panelBawah.add(buttonLinearSort);
panelBawah.add(buttonInsertionSort);
panelBawah.add(buttonBubbleSort);
panelSemua.add(“South”, panelBawah);

JFrame jendela = new JFrame(“Sorting GUI”);
jendela.setContentPane(panelSemua);
//jendela.setSize(200,400);
//jendela.setResizable(false);
jendela.pack();
jendela.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jendela.setVisible(true);

ProsesSorting proses = new ProsesSorting(this);
buttonSisip.addActionListener(proses);
buttonHapus.addActionListener(proses);
buttonLinearSort.addActionListener(proses);
buttonInsertionSort.addActionListener(proses);
buttonBubbleSort.addActionListener(proses);
}

public static void main(String[] args) {
SortingGui sort = new SortingGui();
}
}

Nama program: ProsesSorting

import java.awt.Color;
import javax.swing.JOptionPane;
import java.awt.event.*;
public class ProsesSorting implements ActionListener {

SortingGui induk;
int array[] = new int[10];
int nElemen = 0;

ProsesSorting(SortingGui induk) {
this.induk = induk;
}

public void actionPerformed(ActionEvent kejadian) {

if(kejadian.getSource() == induk.buttonSisip) {
array[nElemen] = Integer.parseInt(induk.sisipElemen.getText());
//int sisip = Integer.parseInt(induk.sisipElemen.getText());
induk.fieldArray[nElemen].setText(Integer.toString(array[nElemen]));
induk.fieldArray[nElemen].setBackground(Color.green);
induk.sisipElemen.setText(“”);
nElemen++;
tampil();
}
else if(kejadian.getSource() == induk.buttonHapus){
int j;

for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(“”);
}

for(j=0; j<nElemen; j++){
if( Integer.parseInt(induk.hapusElemen.getText()) == array[j] )
break;
}
if(j==nElemen)
JOptionPane.showMessageDialog(null, “tidak ada”);
else
{
for(int k=j; k<nElemen; k++) {
array[k] = array[k+1];
//nElemen–;
}
nElemen–;
induk.fieldArray[nElemen].setBackground(Color.white);
}
induk.hapusElemen.setText(“”);
tampil();
} else if(kejadian.getSource() == induk.buttonLinearSort) {
for(int x = 0; x<nElemen-1; x++) {
for(int y = x+1; y<nElemen; y++) {
if(array[x] > array[y]){
int temp = array[x];
array[x] = array[y];
array[y] = temp;
}
}
}
tampil();
} else if(kejadian.getSource() == induk.buttonInsertionSort) {
int in, out;
for(out=1; out<nElemen; out++)
{
int temp = array[out];
in = out;
while(in>0 && array[in-1] >= temp)
{
array[in] = array[in-1];
–in;
}
array[in] = temp;
}
tampil();

} else if(kejadian.getSource() == induk.buttonBubbleSort) {
for (int x = nElemen-1; x > 1; x–) {
for (int y = 0; y < x; y++) {
if (array[y] > array[y + 1]) {
int temp = array[y];
array[y] = array[y + 1];
array[y + 1] = temp;
}
}
}
tampil();
}

}

public void tampil(){
for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(” “);
}

for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(Integer.toString(array[x]));
}
}

}

Output program:

Elemen array sebelum diurutkan

Elemen array setelah diurutkan

Nama program: binarySearch.java

public class binarySearch {

public static void main(String[] args) {

int array[] = new int[5];

array[0] = 25;
array[1] = 30;
array[2] = 35;
array[3] = 40;
array[4] = 45;

int batasAtas = array.length-1;
int batasBawah = 0;

for(int index = 0 ; index<array.length; index++){
System.out.print(array[index] + ” “);
}

System.out.println(“”);

int cari = 30;
boolean belumKetemu = true;

while(belumKetemu) {
int posisiSekarang = (batasAtas + batasBawah)/2;
if (array[posisiSekarang] == cari) {
belumKetemu=false;
System.out.println(“ditemukan ” + cari);
} else if(batasBawah > batasAtas) {
System.out.println(“tidak ditemukan ” + cari);
break;
}
else {
if (array[posisiSekarang] < cari) {
batasBawah = posisiSekarang + 1;
} else {
batasAtas = posisiSekarang – 1;
}
}
}
}
}

Output program:

25 30 35 40 45
ditemukan 30

BINARY SEARCH – GUI

Nama program: BinarySearchGui.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class BinarySearchGui {

JPanel panelKiri = new JPanel();
JPanel panelKanan = new JPanel();
JPanel panelSemua = new JPanel();
JTextField[] fieldArray = new JTextField[10];
JLabel[] label = new JLabel[10];
JTextField sisipElemen = new JTextField(5);
JButton buttonSisip = new JButton(“Sisip”);
JTextField hapusElemen = new JTextField(5);
JButton buttonHapus = new JButton(“Hapus”);
JTextField cariElemen = new JTextField(5);
JButton buttonCari = new JButton(“Cari”);

BinarySearchGui() {
BorderLayout bl = new BorderLayout();
panelSemua.setLayout(bl);

GridLayout gl = new GridLayout(10,2);
panelKiri.setLayout(gl);
for(int x=0; x<fieldArray.length; x++) {
panelKiri.add(label[x] = new JLabel(Integer.toString(x)));
panelKiri.add(fieldArray[x] = new JTextField(5));
}
panelSemua.add(“Center”,panelKiri);

GridLayout gl2 = new GridLayout(3,2);
panelKanan.setLayout(gl2);
panelKanan.add(sisipElemen);
panelKanan.add(buttonSisip);
panelKanan.add(hapusElemen);
panelKanan.add(buttonHapus);
panelKanan.add(cariElemen);
panelKanan.add(buttonCari);
panelSemua.add(“North”,panelKanan);

JFrame jendela = new JFrame(“Array GUI”);
jendela.setContentPane(panelSemua);
jendela.setSize(200,400);
jendela.setResizable(false);
//jendela.pack();
jendela.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jendela.setVisible(true);

BinarySearchProcess proses = new BinarySearchProcess(this);
buttonSisip.addActionListener(proses);
buttonHapus.addActionListener(proses);
buttonCari.addActionListener(proses);
}

public static void main(String[] args) {
BinarySearchGui linearSearch = new BinarySearchGui();
}
}

Nama program: BinarySearchProcess.java

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class BinarySearchProcess implements ActionListener{

int array[] = new int[10];
int nElemen = 0;
BinarySearchGui induk;

BinarySearchProcess(BinarySearchGui induk) {
this.induk = induk;
}

public void actionPerformed(ActionEvent kejadian) {
if(kejadian.getSource() == induk.buttonSisip) {
int j;
for(j=0; j<nElemen; j++){
if(array[j] > Integer.parseInt(induk.sisipElemen.getText()))
break;
}
for(int k=nElemen; k>j; k–) {
array[k] = array[k-1];
}
array[j] = Integer.parseInt(induk.sisipElemen.getText());
induk.sisipElemen.setText(“”);
nElemen++;
tampil();
}

else if(kejadian.getSource() == induk.buttonHapus){
int j;

for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(“”);
}

for(j=0; j<nElemen; j++){
if( Integer.parseInt(induk.hapusElemen.getText()) == array[j] )
break;
}
if(j==nElemen)
JOptionPane.showMessageDialog(null, “tidak ada”);
else
{
for(int k=j; k<nElemen; k++) {
array[k] = array[k+1];
//nElemen–;
}
nElemen–;
induk.fieldArray[nElemen].setBackground(Color.white);
}
induk.hapusElemen.setText(“”);
tampil();
}

if(kejadian.getSource() == induk.buttonCari) {
int batasAtas = nElemen-1;
int batasBawah = 0;
int cari = Integer.parseInt(induk.cariElemen.getText());
boolean belumKetemu = true;

while(belumKetemu) {
int posisiSekarang = (batasAtas + batasBawah)/2;
if (array[posisiSekarang] == cari) {
belumKetemu=false;
JOptionPane.showMessageDialog(induk.panelSemua, cari + ” ditemukan”);
} else if(batasBawah > batasAtas) {
JOptionPane.showMessageDialog(induk.panelSemua, cari + ” tidak ditemukan”);
break;
}
else {
if (array[posisiSekarang] < cari) {
batasBawah = posisiSekarang + 1;
} else {
batasAtas = posisiSekarang – 1;
}
}
}
induk.cariElemen.setText(“”);
}
}

public void tampil(){
for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(” “);
}

for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(Integer.toString(array[x]));
}
}
}

Output program:

Pencarian elemen array

Nama Program: linearSearch.Java

public class linearSearch {

public static void main(String[] args) {

int array[] = new int[5];

array[0] = 10;
array[1] = 25;
array[2] = 15;
array[3] = 35;
array[4] = 5;

for(int index=0; index<array.length; index++) {
System.out.print(array[index] + ” “);
}
System.out.println(“”);

int cari = 25;
boolean ketemu = false;

for(int index=0; index<array.length; index++) {
if(array[index] == cari){
ketemu = true;
break;
}
}

if(ketemu == true) {
System.out.println(“elemen ” + cari + ” ditemukan…”);
} else {
System.out.println(“elemen ” + cari + ” tidak ditemukan…”);
}
}

}

Output program:

10 25 15 35 5
elemen 25 ditemukan…

LINEAR SEARCH – GUI

Nama Program: LinearSearchGui.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class LinearSearchGui {

JPanel panelKiri = new JPanel();
JPanel panelKanan = new JPanel();
JPanel panelSemua = new JPanel();
JTextField[] fieldArray = new JTextField[10];
JLabel[] label = new JLabel[10];
JTextField sisipElemen = new JTextField(5);
JButton buttonSisip = new JButton(“Sisip”);
JTextField hapusElemen = new JTextField(5);
JButton buttonHapus = new JButton(“Hapus”);
JTextField cariElemen = new JTextField(5);
JButton buttonCari = new JButton(“Cari”);

LinearSearchGui() {
BorderLayout bl = new BorderLayout();
panelSemua.setLayout(bl);

GridLayout gl = new GridLayout(10,2);
panelKiri.setLayout(gl);
for(int x=0; x<fieldArray.length; x++) {
panelKiri.add(label[x] = new JLabel(Integer.toString(x)));
panelKiri.add(fieldArray[x] = new JTextField(5));
}
panelSemua.add(“Center”,panelKiri);

GridLayout gl2 = new GridLayout(3,2);
panelKanan.setLayout(gl2);
panelKanan.add(sisipElemen);
panelKanan.add(buttonSisip);
panelKanan.add(hapusElemen);
panelKanan.add(buttonHapus);
panelKanan.add(cariElemen);
panelKanan.add(buttonCari);
panelSemua.add(“North”,panelKanan);

JFrame jendela = new JFrame(“Array GUI”);
jendela.setContentPane(panelSemua);
jendela.setSize(200,400);
jendela.setResizable(false);
//jendela.pack();
jendela.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jendela.setVisible(true);

LinearSearchProcess proses = new LinearSearchProcess(this);
buttonSisip.addActionListener(proses);
buttonHapus.addActionListener(proses);
buttonCari.addActionListener(proses);
}

public static void main(String[] args) {
LinearSearchGui linearSearch = new LinearSearchGui();
}
}

Nama Program: LinearSearchProcess.java

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class LinearSearchProcess implements ActionListener {

int array[] = new int[10];
int nElemen = 0;
LinearSearchGui induk;

LinearSearchProcess(LinearSearchGui induk) {
this.induk = induk;
}

public void actionPerformed(ActionEvent kejadian) {
if(kejadian.getSource() == induk.buttonSisip) {
array[nElemen] = Integer.parseInt(induk.sisipElemen.getText());
induk.fieldArray[nElemen].setText(Integer.toString(array[nElemen]));
induk.fieldArray[nElemen].setBackground(Color.green);
induk.sisipElemen.setText(“”);
nElemen++;
tampil();
}

else if(kejadian.getSource() == induk.buttonHapus){
int j;

for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(“”);
}

for(j=0; j<nElemen; j++){
if( Integer.parseInt(induk.hapusElemen.getText()) == array[j] )
break;
}
if(j==nElemen)
JOptionPane.showMessageDialog(null, “tidak ada”);
else
{
for(int k=j; k<nElemen; k++) {
array[k] = array[k+1];
//nElemen–;
}
nElemen–;
induk.fieldArray[nElemen].setBackground(Color.white);
}
induk.hapusElemen.setText(“”);
tampil();
}
else if(kejadian.getSource() == induk.buttonCari) {

int cari = Integer.parseInt(induk.cariElemen.getText());
//int cari = 35;
boolean ketemu = false;

int index;
for(index=0; index<nElemen; index++) {
if(array[index] == cari){
ketemu = true;
break;
}
}

if(ketemu == true) {
JOptionPane.showMessageDialog(induk.panelSemua, “elemen ” + cari + ” ditemukan…”);
} else if (ketemu == false) {
JOptionPane.showMessageDialog(induk.panelSemua,”elemen ” + cari + ” tidak ditemukan…”);
}
induk.cariElemen.setText(“”);
}

}

public void tampil(){
for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(” “);
}

for(int x=0; x<nElemen; x++) {
induk.fieldArray[x].setText(Integer.toString(array[x]));
}
}
}

Output program:

Penyisipan elemen array

Pencarian elemen array

sisip(){
BorderLayout bl = new BorderLayout();
panelSemua.setLayout(bl);

GridLayout gl1 = new GridLayout(6,2);
panelAtas.setLayout(gl1);
panelAtas.add(labelNim);
panelAtas.add(fieldNim);
panelAtas.add(labelNama);
panelAtas.add(fieldNama);
panelAtas.add(labelProdi);
panelAtas.add(fieldProdi);
panelAtas.add(labelAlamat);
panelAtas.add(fieldAlamat);
panelAtas.add(labelKota);
panelAtas.add(fieldKota);
panelAtas.add(tombolSimpan);
panelAtas.add(tombolBatal);
panelSemua.add(“North”, panelAtas);

Object[] row = {“NIM”, “Nama”, “Prodi”, “Alamat”, “Kota”};
tabMode = new DefaultTableModel(null, row);
tabel.setModel(tabMode);
scrollPane.getViewport().add(tabel, null);
panelSemua.add(“Center”, scrollPane);

koneksiDatabase();

tampilDataKeTabel();

tombolSimpan.addActionListener(this);
tombolBatal.addActionListener(this);

JFrame frame = new JFrame(“input data”);
frame.setContentPane(panelSemua);
frame.setSize(400,250);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(true);
}
public void actionPerformed(ActionEvent kejadian) {
try {
if(kejadian.getSource()==tombolSimpan) {
String nama = fieldNama.getText();
String nim = fieldNim.getText();
String prodi = fieldProdi.getText();
String alamat = fieldAlamat.getText();
String kota = fieldKota.getText();

//Class.forName(“com.mysql.jdbc.Driver”);
//System.out.println(“driver JDBC ditemukan…”);

//String url = “jdbc:mysql://localhost:3306/dbmahasiswa?user=root&password=t3l0g0dh0g”;
//Connection koneksi = DriverManager.getConnection(“jdbc:mysql://localhost:3306/dbmahasiswa”,
//                                                 “root”,”t3l0g0dh0g”);
//System.out.println(“koneksi sukses…”);

koneksiDatabase();

Statement perintah = koneksi.createStatement();
String sql = “INSERT INTO mahasiswa VALUES (‘”+nim+”‘,’”+nama+”‘,’”+prodi+”‘,’”+alamat+”‘,’”+kota+”‘);”;
perintah.executeUpdate(sql);
fieldNama.setText(“”);
fieldNim.setText(“”);
fieldProdi.setText(“”);
fieldAlamat.setText(“”);
fieldKota.setText(“”);
//perintah.close();
//koneksi.close();
JOptionPane.showMessageDialog(panelSemua, “data sukses tersimpan…”);

//hapusTabel();
tampilDataKeTabel();

}
}
catch(Exception e) {
System.out.println(“terjadi error…”);

}
if(kejadian.getSource()==tombolBatal){
fieldNama.setText(“”);
fieldNim.setText(“”);
fieldProdi.setText(“”);
fieldAlamat.setText(“”);
fieldKota.setText(“”);
}
}

public void koneksiDatabase() {
try {
Class.forName(“com.mysql.jdbc.Driver”);
System.out.println(“JDBC ditemukan…”);
try {
String url = “jdbc:mysql://localhost:3306/dbmahasiswa?user=root&password=t3l0g0dh0g”;
koneksi = DriverManager.getConnection(url);
System.out.println(“koneksi sukses…”);
}
catch (SQLException se) {
System.out.println(“koneksi gagal = ” + se);
System.exit(0);
}
}
catch (ClassNotFoundException cnfe) {
System.out.println(“class tidak ditemukan… error: ” + cnfe);
System.exit(0);
}
}

public void tampilDataKeTabel() {
hapusTabel();
try {
String sql = “SELECT * FROM mahasiswa”;
Statement stat = koneksi.createStatement();
ResultSet set = stat.executeQuery(sql);
while(set.next()) {
String nim = set.getString(“nim”);
String nama = set.getString(“nama”);
String prodi = set.getString(“prodi”);
String alamat = set.getString(“alamat”);
String kota = set.getString(“kota”);
String[] data = {nim, nama, prodi, alamat, kota};
tabMode.addRow(data);
}
}
catch (Exception e) {
}
}

public void hapusTabel() {
int row = tabMode.getRowCount();
for(int i=0; i<row; i++) {
tabMode.removeRow(0);
}
}

public static void main(String[] args) {
sisip insertRecord = new sisip();
}

}

Output Program:

sebelum sisip record baru

setelah penyisipan record baru

import javax.swing.*;
import java.awt.GridLayout;
import java.awt.BorderLayout;
public class Kalkulator {

JPanel panelJendela = new JPanel();
JTextField fieldHasil = new JTextField(20);
JLabel labelNama = new JLabel(“Created by …..”);
JButton button0 = new JButton(“0″);
JButton button1 = new JButton(“1″);
JButton button2 = new JButton(“2″);
JButton button3 = new JButton(“3″);
JButton button4 = new JButton(“4″);
JButton button5 = new JButton(“5″);
JButton button6 = new JButton(“6″);
JButton button7 = new JButton(“7″);
JButton button8 = new JButton(“8″);
JButton button9 = new JButton(“9″);
JButton buttonTambah = new JButton(“+”);
JButton buttonKurang = new JButton(“-”);
JButton buttonKali = new JButton(“x”);
JButton buttonBagi = new JButton(“/”);
JButton buttonKoma = new JButton(“.”);
JButton buttonSamadengan = new JButton(“=”);
JButton buttonHapus = new JButton(“C”);
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();

Kalkulator() {
BorderLayout bl = new BorderLayout();
panelJendela.setLayout(bl);
panelJendela.add(“North”, fieldHasil);

GridLayout gl = new GridLayout(5,3);
panel1.setLayout(gl);
panel1.add(button1);
panel1.add(button2);
panel1.add(button3);
panel1.add(button4);
panel1.add(button5);
panel1.add(button6);
panel1.add(button7);
panel1.add(button8);
panel1.add(button9);
panel1.add(button0);
panel1.add(buttonKoma);
panel1.add(buttonSamadengan);

panelJendela.add(“Center”, panel1);

GridLayout gl2 = new GridLayout(5,1);
panel2.setLayout(gl2);
panel2.add(buttonTambah);
panel2.add(buttonKurang);
panel2.add(buttonKali);
panel2.add(buttonBagi);
panel2.add(buttonHapus);

panelJendela.add(“East”, panel2);

panelJendela.add(“South”, labelNama);

JFrame jendela = new JFrame(“kalkulator”);
jendela.setContentPane(panelJendela);
jendela.pack();
jendela.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jendela.setVisible(true);

mesin4 mesin = new mesin4(this);
button0.addActionListener(mesin);
button1.addActionListener(mesin);
button2.addActionListener(mesin);
button3.addActionListener(mesin);
button4.addActionListener(mesin);
button5.addActionListener(mesin);
button6.addActionListener(mesin);
button7.addActionListener(mesin);
button8.addActionListener(mesin);
button9.addActionListener(mesin);
buttonKoma.addActionListener(mesin);
buttonTambah.addActionListener(mesin);
buttonKali.addActionListener(mesin);
buttonKurang.addActionListener(mesin);
buttonBagi.addActionListener(mesin);
buttonSamadengan.addActionListener(mesin);
}

public static void main(String[] args) {
Kalkulator kalkul = new Kalkulator();
}

}

Nama program: mesin1.java

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class mesin1 implements ActionListener {

public void actionPerformed(ActionEvent kejadian) {
JOptionPane.showMessageDialog(null, “ada tombol yang diklik…”);
}

}

Nama program: mesin2.java

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class mesin2 implements ActionListener {

public void actionPerformed(ActionEvent kejadian) {
JButton tombolDiklik = (JButton) kejadian.getSource();
String labelTombolDiklik = tombolDiklik.getText();
JOptionPane.showMessageDialog(null, “anda mengklik ” + labelTombolDiklik);
}

}

Nama program: mesin3.java

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class mesin3 implements ActionListener {

Kalkulator induk;
mesin3(Kalkulator induk) {
this.induk = induk;
}

public void actionPerformed(ActionEvent kejadian) {
JButton tombolDiklik = (JButton) kejadian.getSource();
String tampilanBaru = tombolDiklik.getText();
String tampilanLama = induk.fieldHasil.getText();
induk.fieldHasil.setText(tampilanLama + tampilanBaru);
}

}

Nama program: mesin4.java

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.*;
public class mesin4 implements ActionListener {

Kalkulator induk;
char operatorAritmatika = ‘ ‘;

double hasilSekarang = 0;

mesin4(Kalkulator induk) {
this.induk = induk;
}

public void actionPerformed(ActionEvent kejadian) {
JButton tombolDiklik = (JButton) kejadian.getSource();
String tampilDiFieldHasil = induk.fieldHasil.getText();

double nilaiDitampilkan = 0;

if(!”".equals(tampilDiFieldHasil)) {
nilaiDitampilkan = Double.parseDouble(tampilDiFieldHasil);
}

Object sumber = kejadian.getSource();
if(sumber == induk.buttonTambah) {
operatorAritmatika = ‘+’;
hasilSekarang = nilaiDitampilkan;
induk.fieldHasil.setText(“”);
} else if(sumber == induk.buttonKurang) {
operatorAritmatika = ‘-’;
hasilSekarang = nilaiDitampilkan;
induk.fieldHasil.setText(“”);
} else if(sumber == induk.buttonBagi) {
operatorAritmatika = ‘/’;
hasilSekarang = nilaiDitampilkan;
induk.fieldHasil.setText(“”);
} else if(sumber == induk.buttonKali) {
operatorAritmatika = ‘*’;
hasilSekarang = nilaiDitampilkan;
induk.fieldHasil.setText(“”);
} else if(sumber == induk.buttonSamadengan) {
if(operatorAritmatika==’+') {
hasilSekarang += nilaiDitampilkan;
induk.fieldHasil.setText(“”+hasilSekarang);
} else if(operatorAritmatika==’-') {
hasilSekarang -= nilaiDitampilkan;
induk.fieldHasil.setText(“”+hasilSekarang);
} else if(operatorAritmatika==’/') {
hasilSekarang /= nilaiDitampilkan;
induk.fieldHasil.setText(“”+hasilSekarang);
} else if(operatorAritmatika==’*') {
hasilSekarang *= nilaiDitampilkan;
induk.fieldHasil.setText(“”+hasilSekarang);
}
} else {
String labelButtonDiklik = tombolDiklik.getText();
induk.fieldHasil.setText(tampilDiFieldHasil + labelButtonDiklik);
}
}
}