JAVA ÖRNEK KODLARIM

Merhaba arkadaşlar,
Programlama.com 'da paylaşmış olmuduğum örnek kodları sizinle burda paylaşmak istiyorum...
Örnek kod 1

import java.awt.*;
import java.awt.event.*;
class Puzzle extends Frame implements ActionListener {
Button btn[][];
String str[]={"","1","2","3","4","5","6","7","8"};
int sira[]=new int[10];
int bos_satir;
int bos_sutun;
boolean yukari=false;
boolean saga=false;
boolean sola=false;
boolean asagi=false;
boolean calisti=false;
public Puzzle(String title){
super(title);
setLayout(new GridLayout(3,3));
int sayac=0;
int sayac2=0;
boolean devam=true;
boolean calıs=false;
int say;
do{
say=(int)Math.round(Math.random()*8);
sira[sayac]=say;
for (int i=0;i
if (sira[i]==sira[sayac]) sayac--;
}
sayac++;
if (sayac==9) devam=false;
}while(devam);
btn=new Button[3][3];
int k=0;
for(int m=0;m<3;m++)
for(int l=0;l<3;l++){
int a=sira[k];
if (a==0){
bos_satir=m;
bos_sutun=l;
System.out.println (m);
System.out.println (l);
btn[m][l]=new Button(str[a]);
btn[m][l].setEnabled(false);
btn[m][l].setVisible(false);
btn[m][l].addActionListener(this);
add(btn[m][l]);
}else{
btn[m][l]=new Button(str[a]);
add(btn[m][l]);
btn[m][l].addActionListener(this);
}
k++;
}
System.out.println (bos_satir);
System.out.println (bos_sutun);
hesapla(bos_satir,bos_sutun);
}
public void hesapla(int a,int b){
if (a-1>=0) yukari=true;
if (a+1<=2) asagi=true;
if (b+1<=2) saga=true;
if (b-1>=0) sola=true;
}
public void sifirla(){
yukari=false;
asagi=false;
saga=false;
sola=false;
}
public void actionPerformed(ActionEvent e){
if (yukari){
if (e.getSource()==btn[bos_satir-1][bos_sutun]){
String l=btn[bos_satir-1][bos_sutun].getLabel();
btn[bos_satir][bos_sutun].setLabel(l);
btn[bos_satir][bos_sutun].setVisible(true);
btn[bos_satir][bos_sutun].setEnabled(true);
btn[bos_satir-1][bos_sutun].setVisible(false);
bos_satir--;
sifirla();
hesapla(bos_satir,bos_sutun);calisti=true;
}
}
if (asagi){
if (!calisti){
if (e.getSource()==btn[bos_satir+1][bos_sutun]){
String l=btn[bos_satir+1][bos_sutun].getLabel();
btn[bos_satir][bos_sutun].setLabel(l);
btn[bos_satir][bos_sutun].setVisible(true);
btn[bos_satir][bos_sutun].setEnabled(true);
btn[bos_satir+1][bos_sutun].setVisible(false);
bos_satir++;
sifirla();
hesapla(bos_satir,bos_sutun);calisti=true;
}
}
}
if (sola){
if (!calisti){
if (e.getSource()==btn[bos_satir][bos_sutun-1]){
String l=btn[bos_satir][bos_sutun-1].getLabel();
btn[bos_satir][bos_sutun].setLabel(l);
btn[bos_satir][bos_sutun].setVisible(true);
btn[bos_satir][bos_sutun].setEnabled(true);
btn[bos_satir][bos_sutun-1].setVisible(false);
bos_sutun--;
sifirla();
hesapla(bos_satir,bos_sutun);calisti=true;
}
}
}
if (saga){
if (!calisti){
if (e.getSource()==btn[bos_satir][bos_sutun+1]){
String l=btn[bos_satir][bos_sutun+1].getLabel();
btn[bos_satir][bos_sutun].setLabel(l);
btn[bos_satir][bos_sutun].setVisible(true);
btn[bos_satir][bos_sutun].setEnabled(true);
btn[bos_satir][bos_sutun+1].setVisible(false);
bos_sutun++;
sifirla();
hesapla(bos_satir,bos_sutun);calisti=true;
}
}
}
calisti=false;
btn[bos_satir][bos_sutun].setEnabled(false);
kontrol();
}
public void kontrol(){
boolean k=false;
int a=1;
int sayac=0;
for(int m=0;m<3;m++)
for(int l=0;l<3;l++){
if (a==9) break;
if (btn[m][l].getLabel().equals(""+a)) sayac++;
a++;
}
if (sayac==8) System.out.println ("You win");
}
public static void main(String[] args){
Puzzle t=new Puzzle("Grid Layout");
t.setSize(300,200);
t.show();
}
}

Örnek kod 2

import java.awt.*;
import java.awt.event.*;
public class DXBall extends Frame implements KeyListener {
Button b;
Panel p;
static int x,y,w,h;
static DXBall d;
DXBall(){
this.setTitle("JAVABALL");
this.setSize(400,400);
x=200;y=370; w=100; h=15;
this.setLayout(null);
b=new Button("\t\t\t\t\t\t\t");
b.setEnabled(false);

b.setBounds(x,y,w,h);
this.add(b);
new Stone(this);
this.addKeyListener(this);
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent we){
System.exit(0);
}
});
this.setVisible(true);
new Top(d,this.getGraphics());
}
public void keyTyped(KeyEvent ke){
}
public void keyPressed(KeyEvent ke){
if (KeyEvent.VK_LEFT==ke.getKeyCode()){
x=x-4;
b.setBounds(x,y,w,h);
}
if (KeyEvent.VK_RIGHT==ke.getKeyCode()){
x=x+4;
b.setBounds(x,y,w,h);
}
}
public void keyReleased(KeyEvent ke){
}
public static void main(String[] args){
d=new DXBall();
}
}
class Top extends Thread {
static DXBall b;
static Graphics g;
static int x,y,w,h,dx,dy;
Stone s;
Thread t;
int oldy;
boolean durdur=false;
Top(DXBall a,Graphics g){
this.b=a;
this.g=g;
x=250;y=370;w=10;h=10;
dx=6;
dy=3;
this.start();
draw();
}
public void draw(){
g.setColor(Color.black);
g.fillOval(x,y,w,h);
}
public void run(){
try {
while(true){
move();
Thread.sleep(1);
vur(x,y);
this.sleep(2);
}
}
catch (InterruptedException ex) {
System.out.println ("Problem var!!");
}

}
public void move(){
try {
g.fillOval(x,y,w,h);
Thread.sleep(15);
g.clearRect(0,0,(int)Toolkit.getDefaultToolkit().getScreenSize().getWidth(),(int)Toolkit.getDefaultToolkit().getScreenSize().getHeight());
if (x<10){
x=10; dx=-dx;
}
if (x+dx>400){
x=390; dx=-dx;
}
if (y<10){
y=10; dy=-dy;}
if ((y+dy)>(b.y-15)){
if (((x-b.x)<90)>0)) {
y=b.y-20; dy=-dy;
}else this.destroy();
}

x=x+dx;
y=y+dy;
}
catch (Exception ex) {}
}
public void vur(int x,int y){
for (int i = 0; i<5;>
for (int j = 0; j<5;>
if (s.stone[i][j].getBounds().contains(x,y) && s.stone[i][j].isVisible()){

s.stone[i][j].setVisible(false);
dx=-dx;
dy=-dy;
}
}
}
}
}
class Stone{
static Button[][] stone;
static int x,y,w,h;
static DXBall a;
static int siray[]=new int[5];
Stone(DXBall d){
this.a=d;
stone=new Button[5][5];
x=0;
y=40;
w=80;
h=20;
for(int j=0;j<5;j++)
for(int i=0;i<5;i++){
stone[j][i]=new Button("\t\t\t\t");
stone[j][i].setBackground(Color.blue);
stone[j][i].setEnabled(false);
stone[j][i].setBounds(x+80*i,y+20*j,w,h);
siray[i]=y+20*j;
d.add(stone[j][i]);
}
y=stone[4][1].getY();
}
}

Örnek kod 3

Bir access database ile Soru bankası uygulaması..
Yardımları için Ramin Orucov ve Erhan Bagdemir ve tüm java forum üyelerine teşekkürler..

import java.util.Timer;
import java.util.TimerTask;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.sql.*;
public class MenuGUI extends JFrame implements WindowListener,ActionListener,ItemListener
{
private int Id=0;
private String soru;
private String chcA;
private String chcB;
private String chcC;
private String chcD;
public ButtonGroup bg;
public JRadioButton choiceA;
private JRadioButton choiceB;
private JRadioButton choiceC;
private JRadioButton choiceD;
private Graphics g;
private JButton sbmt;
private JButton strt;
private JPanel panelCard;
private JPanel panelStart;
private JPanel panelChoice;
private JPanel panelCommand;
private JPanel panelChoice1;
private JPanel panelQues;
private JPanel panelStrt;
private JFrame frame;
private JLabel timerTable;
static java.sql.Connection baglanti=null;
static java.sql.ResultSet SonucVeriler=null;
static Statement sorgulama=null;
public JLabel etiket;
private String nAnswer;
private String oAnswer;
private int question;
private String answerbyuser;
private boolean dVy;
boolean done=false;
boolean done1=false;
Timetut timer=new Timetut();
public MenuGUI(String baslik) {

frame=new JFrame(baslik);
choiceA = new JRadioButton("choice A");
choiceB = new JRadioButton("choice B");
choiceC = new JRadioButton("choice C");
choiceD = new JRadioButton("choice D");
timerTable=new JLabel("Time:");
bg=new ButtonGroup();
bg.add(choiceA);
bg.add(choiceB);
bg.add(choiceC);
bg.add(choiceD);
sbmt=new JButton("Submit");
strt=new JButton("Start");
sbmt.setVisible(false);
panelCommand= new JPanel();
panelQues=new JPanel();
panelCommand.setBorder(new EtchedBorder(EtchedBorder.RAISED));
panelChoice=new JPanel(new BorderLayout());
panelStart=new JPanel(new BorderLayout());
panelStart.setBorder(new EtchedBorder(EtchedBorder.RAISED));
panelStrt=new JPanel();
panelStrt.add(strt);
panelChoice.setBorder(new EtchedBorder(EtchedBorder.RAISED));
panelChoice1=new JPanel();
panelChoice1.add(choiceA);
panelChoice1.add(choiceB);
panelChoice1.add(choiceC);
panelChoice1.add(choiceD);
panelCard= new JPanel(new BorderLayout());
panelCard.add("South",panelChoice);
panelCard.add("Center",panelQues);
panelCard.setBorder(new EtchedBorder(EtchedBorder.RAISED));
etiket= new JLabel("For Starting Please Push Start");

JOptionPane.showMessageDialog(null,"Java Quize Hosgeldiniz","Quiz Programi",JOptionPane.INFORMATION_MESSAGE);

//PROGRAM ICINDE KULLANILACAK COMPONENTLARIN TANITILMASI
}
public void pencereyiGoster()
{ Container cnt =frame.getContentPane();
cnt.setLayout(new BorderLayout(10,10));
cnt.add("Center",panelCard);
cnt.add("South",panelCommand);
panelStart.add("East",timerTable);
panelStart.add("Center",panelStrt);
panelChoice.add("North",panelStart);
panelChoice.add("Center",panelChoice1);
panelCommand.add(sbmt);

panelQues.add(etiket);

sbmt.addActionListener(this);
strt.addActionListener(this);
choiceA.addItemListener(this);
choiceB.addItemListener(this);
choiceC.addItemListener(this);
choiceD.addItemListener(this);
frame.setSize(800,600);
frame.setLocation(200,100);
frame.addWindowListener(this);
frame.setVisible(true);

}
//DATABASE'E BAGLANTI YAPIYORUZ..
private static void baglan(){
try {

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
baglanti=DriverManager.getConnection("jdbc:Odbc:soru_java");
sorgulama=baglanti.createStatement();
}
catch (Exception ex) {
}

}
public static void main(String[] args) {
MenuGUI penc = new MenuGUI("Soru Bankasi");
// Create application frame.
penc.pencereyiGoster();

// penc.baglan();
}
public void actionPerformed ( ActionEvent e)
{
if (e.getActionCommand().equals("Exit"))
{
done=true;
System.out.print(done);
int confirm = JOptionPane.showOptionDialog(null,
"Really Exit?", "Exit Confirmation",
JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE,
null, null, null);
if (confirm==0) { System.exit(0); }
}
if (e.getSource()==sbmt)
{
try{
timer();
soruGoster();
dVy=controlEt();
upDate(dVy);

}catch(Exception exc){}
}
if (e.getSource()==strt){
timer.start();

sbmt.setVisible(true);
strt.setVisible(false);
soruGoster(); }
}



/**
* Shutdown procedure when run as an application.
*/
public void windowClosing(WindowEvent e) {
done=true;
int confirm = JOptionPane.showOptionDialog(frame,
"Really Exit?", "Exit Confirmation",
JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE,
null, null, null);
if (confirm == 0) {
System.exit(0);
}
}
//VERİLER DATABASE'DEN ÇEKİLİYOR..
private void soruGoster(){
try{
done1=false;
oAnswer=nAnswer;
Id++;
// Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
// Connection baglanti=DriverManager.getConnection("jdbc:Odbc:soru_java");
// Statement sorgulama=baglanti.createStatement();
baglan();
SonucVeriler=sorgulama.executeQuery("Select * FROM Table1 ORDER BY Id");
for(int i=0;i
Id=(SonucVeriler.getInt("Id"));
soru=(SonucVeriler.getString("Soru"));
chcA=(SonucVeriler.getString("ChoiceA"));
chcB=(SonucVeriler.getString("ChoiceB"));
chcC=(SonucVeriler.getString("ChoiceC"));
chcD=(SonucVeriler.getString("ChoiceD"));
nAnswer=(SonucVeriler.getString("Answer"));

}catch (Exception e){}
try{ if (sorgulama!=null)
sorgulama.close();
if(baglanti!=null)
baglanti.close();
}catch(SQLException sqle){}
Font font=new Font(null,Font.BOLD,18);
etiket.setFont(font);
etiket.setText("Question"+Integer.toString(Id)+"."+soru);
choiceA.setText(chcA);
choiceB.setText(chcB);
choiceC.setText(chcC);
choiceD.setText(chcD);
if (soru.equals("")){
JOptionPane.showMessageDialog(null,"Testiniz bitmiştir.");
frame.dispose();
evaluate();
}
soru="";
chcA="";
chcB="";
chcC="";
chcD="";
}
public void timer(){
timer.stop();
timer.start();
}
private boolean controlEt (){
if (oAnswer.equals(answerbyuser)){
return true;
}
else{
return false;
}
}
private void upDate(boolean onay){
try
{
question=Id-1;
baglan();
String upDateString="Update Table1 SET TrueorFalse ="+onay+" WHERE Id ="+question;
sorgulama.executeUpdate(upDateString);
}catch(Exception ex){}
}
public void evaluate(){
int correct=0;
try {
baglan();
SonucVeriler=sorgulama.executeQuery("Select Id,TrueorFalse FROM Table1 ORDER BY Id");
System.out.println (SonucVeriler.getRow());
while (SonucVeriler.next()){
System.out.println (SonucVeriler.getRow());
Id=(SonucVeriler.getInt("Id"));
dVy=(SonucVeriler.getBoolean("TrueorFalse"));
System.out.println (dVy);
if (dVy==true) correct++;
}
JOptionPane.showMessageDialog(null,"Dogru sayınız :"+correct);
}
catch (Exception ex) {
System.out.println (ex.getMessage());
}
}
class Timetut implements Runnable {
Thread thrd;
int seconds=20;
public void run(){
while (seconds!=0){

try{
if (done==true){try{ wait();}catch(Exception e){} }
if (done1==true){thrd.stop();start();}
Thread.sleep(1000); seconds=seconds-1; timerTable.setText("Time :"+seconds);}
catch(InterruptedException e){}
if (seconds==0){JOptionPane.showMessageDialog(null,"Süreniz Doldu.... :(","Quiz Programi",JOptionPane.INFORMATION_MESSAGE);
seconds=20; soruGoster();}

}
}
public void start() {
if ( thrd== null ) {
thrd = new Thread(this);
seconds=20;
thrd.start();
}
}
public void stop() {
if ( thrd != null ) {
thrd.stop();
thrd = null;
} }


}

public void itemStateChanged (ItemEvent ie){
JRadioButton rb=(JRadioButton)ie.getItemSelectable();
answerbyuser=rb.getText();
}
public void windowClosed(WindowEvent e) {}
public void windowActivated(WindowEvent e) { }
public void windowDeactivated(WindowEvent e) {}
public void windowIconified(WindowEvent e) {}
public void windowDeiconified(WindowEvent e) {}
public void windowOpened (WindowEvent e) {}
}

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