import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.util.ArrayList;
public class makine extends JApplet{
private int counter = 0;
private ArrayList<String> liste;
private String[] yazi;
private JButton one,two,three,four,five,
six,seven,eight,nine,zero,
arti,eksi,bolu,carpi,CE,esit;
private JTextField ekran;
private JLabel yazar;
private DecimalFormat dec;
public String ToString(Double d)
{
return d.toString();
}
//@override
public void init()
{
yazi = new String[11];
liste = new ArrayList<String>();
for(int i = 0;i<11;i++){
yazi[i] = "";
}
ActionHandler handler = new ActionHandler();
Container container = this.getContentPane();
container.setLayout(new FlowLayout(1,8,2));
dec = new DecimalFormat("0.000");
one = new JButton();
one.setText("1");
one.setSize(20, 20);
one.setLocation(40, 40);
container.add(one);
one.addActionListener(handler);
two = new JButton();
two.setText("2");
two.setSize(20, 20);
two.setLocation(40, 40);
container.add(two);
two.addActionListener(handler);
three = new JButton();
three.setText("3");
three.setSize(20, 20);
three.setLocation(70, 40);
container.add(three);
three.addActionListener(handler);
arti = new JButton();
arti.setText("+");
arti.setSize(20, 20);
arti.setLocation(100, 40);
container.add(arti);
arti.addActionListener(handler);
four = new JButton();
four.setText("4");
four.setSize(20, 20);
four.setLocation(10, 70);
container.add(four);
four.addActionListener(handler);
five = new JButton();
five.setText("5");
five.setSize(20, 20);
five.setLocation(40, 70);
container.add(five);
five.addActionListener(handler);
six = new JButton();
six.setText("6");
six.setSize(20, 20);
six.setLocation(70, 70);
container.add(six);
six.addActionListener(handler);
eksi = new JButton();
eksi.setText("-");
eksi.setSize(20, 20);
eksi.setLocation(10, 70);
container.add(eksi);
eksi.addActionListener(handler);
seven = new JButton();
seven.setText("7");
seven.setSize(20, 20);
seven.setLocation(10, 100);
container.add(seven);
seven.addActionListener(handler);
eight = new JButton();
eight.setText("8");
eight.setSize(20, 20);
eight.setLocation(40, 100);
container.add(eight);
eight.addActionListener(handler);
nine = new JButton();
nine.setText("9");
nine.setSize(20, 20);
nine.setLocation(70, 100);
container.add(nine);
nine.addActionListener(handler);
carpi = new JButton();
carpi.setText("x");
carpi.setSize(20, 20);
carpi.setLocation(100, 130);
container.add(carpi);
carpi.addActionListener(handler);
CE = new JButton();
CE.setText("CE");
CE.setSize(20, 20);
CE.setLocation(10, 100);
container.add(CE);
CE.addActionListener(handler);
zero = new JButton();
zero.setText("0");
zero.setSize(20, 20);
zero.setLocation(40, 130);
container.add(zero);
zero.addActionListener(handler);
bolu = new JButton();
bolu.setText("/");
bolu.setSize(20, 20);
bolu.setLocation(100, 100);
container.add(bolu);
bolu.addActionListener(handler);
esit = new JButton();
esit.setText("=");
esit.setSize(20, 20);
esit.setLocation(70, 100);
container.add(esit);
esit.addActionListener(handler);
ekran = new JTextField(15);
ekran.setText(" ");
ekran.setEditable(false);
ekran.setDisabledTextColor(Color.BLUE );
ekran.setVisible(true);
ekran.setAlignmentY(JTextField.RIGHT_ALIGNMENT);
ekran.setHorizontalAlignment(JTextField.RIGHT);
ekran.setLocation(10,10);
container.add(ekran);
ekran.addActionListener(handler);
yazar = new JLabel("Tested and Programmed by BY");
container.add(yazar);
}
//inner class
private class ActionHandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
if(event.getSource() == one){
if(counter<11){
yazi[counter]+="1";
ekran.setText(yazi[counter]);
}else ;
}if(event.getSource() == two){
if(counter<11){
yazi[counter]+="2";
ekran.setText(yazi[counter]);
}else ;
}if(event.getSource() == three){
if(counter<11){
yazi[counter]+="3";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == four){
if(counter<11){
yazi[counter]+= "4";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == five){
if(counter<11){
yazi[counter] += "5";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == six){
if(counter<11){
yazi[counter] += "6";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == seven){
if(counter<11){
yazi[counter] += "7";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == eight){
if(counter<11){
yazi[counter] += "8";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == nine){
if(counter<11){
yazi[counter] += "9";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == zero){
if(counter<11){
yazi[counter] += "0";
ekran.setText(yazi[counter]);
}else;
}if(event.getSource() == arti){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "+";
counter++;
}else;
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == eksi){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "-";
counter++;
}else;
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == bolu){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "/";
counter++;
}else;
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == carpi){
try{
if(Double.parseDouble(yazi[counter])>=0){
counter++;
yazi[counter] = "*";
counter++;
}
}catch(Exception e){
ekran.setText("Syntax Error");
}
}if(event.getSource() == CE){
for(int i = 0;i<11;i++)
yazi[i] = "";
ekran.setText("");
counter = 0;
}if(event.getSource() == esit){
//try{
for(int i = 0;i<11;i++){
liste.add(i,yazi[i]);
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="/"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])/Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="*"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])*Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}
catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="+"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])+Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}
catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
for(int i = 0;i<11;i++){
try{
if(yazi[i]=="-"){
yazi[i] = ToString(Double.parseDouble(yazi[i-1])-Double.parseDouble(yazi[i+1]));
yazi[i-1] = yazi[i];
yazi[i+1] = yazi[i];
liste.remove(0);
liste.add(0,yazi[i]);
}
}
catch(Exception e){
ekran.setText("Syntax Error");
counter = 0;
}
}
if(liste.isEmpty()){
ekran.setText("Syntax Error");
counter = 0;}
else{
if(liste.get(0)!="")
ekran.setText(liste.get(0).toString());
}
counter = 0;
for(int i = 0;i<11;i++)
yazi[i] = "";
if(!liste.isEmpty())
liste.clear();
/*}catch(Exception e){
ekran.setText("Syntax Error");
}*/
}
}
}
}
