import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextField;
import java.awt.FlowLayout;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JTextPane;

public class CalFrame extends JFrame {

private JPanel contentPane;
private JTextField calText;
String dis = "";
   Boolean addbol = false;
   Boolean subbol = false;
   Boolean eqlbol = false;
   private int TEMP;
   private int TEMP2;
/**
 * Launch the application.
 */
public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
        public void run() {
            try {
                CalFrame frame = new CalFrame();
                frame.setVisible(true);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
}

/**
 * Create the frame.
 */
public CalFrame() {
    setTitle("Calculator");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setBounds(100, 100, 400, 527);
    contentPane = new JPanel();
    contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
    setContentPane(contentPane);
    contentPane.setLayout(null);

    calText = new JTextField();
    calText.setBounds(10, 11, 364, 80);
    contentPane.add(calText);
    calText.setColumns(10);

    JButton button1 = new JButton("1");
    button1.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {


        }
    });
    button1.setBounds(10, 140, 100, 50);
    contentPane.add(button1);

    JButton button2 = new JButton("2");
    button2.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
        }
    });
    button2.setBounds(140, 140, 100, 50);
    contentPane.add(button2);

    JButton button3 = new JButton("3");
    button3.setBounds(274, 140, 100, 50);
    contentPane.add(button3);

    JButton button4 = new JButton("4");
    button4.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
        }
    });
    button4.setBounds(10, 210, 100, 50);
    contentPane.add(button4);

    JButton button5 = new JButton("5");
    button5.setBounds(140, 210, 100, 50);
    contentPane.add(button5);

    JButton button6 = new JButton("6");
    button6.setBounds(274, 210, 100, 50);
    contentPane.add(button6);

    JButton button7 = new JButton("7");
    button7.setBounds(10, 280, 100, 50);
    contentPane.add(button7);

    JButton button8 = new JButton("8");
    button8.setBounds(140, 280, 100, 50);
    contentPane.add(button8);

    JButton button9 = new JButton("9");
    button9.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
        }
    });
    button9.setBounds(274, 280, 100, 50);
    contentPane.add(button9);

    JButton buttonPls = new JButton("+");
    buttonPls.setBounds(10, 350, 100, 50);
    contentPane.add(buttonPls);

    JButton button0 = new JButton("0");
    button0.setBounds(140, 350, 100, 50);
    contentPane.add(button0);

    JButton buttonMin = new JButton("-");
    buttonMin.setBounds(274, 350, 100, 50);
    contentPane.add(buttonMin);

    JButton buttonEql = new JButton("=");
    buttonEql.setBounds(10, 420, 364, 50);
    contentPane.add(buttonEql);

    button1.addActionListener(new Listen1());
    button2.addActionListener(new Listen2());
    button3.addActionListener(new Listen3());
    button4.addActionListener(new Listen4());
    button5.addActionListener(new Listen5());
    button6.addActionListener(new Listen6());
    button7.addActionListener(new Listen7());
    button8.addActionListener(new Listen8());
    button9.addActionListener(new Listen9());
    button0.addActionListener(new Listen0());
    buttonPls.addActionListener(new ListenPls());
    buttonMin.addActionListener(new ListenMin());
    buttonEql.addActionListener(new ListenEql());
}
   class Clearr implements ActionListener {
        public void actionPerformed(ActionEvent e) {

            calText.setText("");
            addbol = false;
            subbol = false;
            TEMP = 0;
            TEMP2 = 0;
        }
    }

class Listen1 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "1");

                                            }}
class Listen2 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "2");

                                            }}
class Listen3 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "3");

                                            }}
class Listen4 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub

     dis = calText.getText();
     calText.setText(dis + "4");
                                            }}
class Listen5 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub

     dis = calText.getText();
     calText.setText(dis + "5");
                                            }}
class Listen6 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "6");

                                            }}
class Listen7 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "7");

                                            }}
class Listen8 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "8");

                                            }}
class Listen9 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub

     dis = calText.getText();
     calText.setText(dis + "9");
                                            }}
class Listen0 implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     dis = calText.getText();
     calText.setText(dis + "0");

                                            }}
class ListenPls implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub

       TEMP = Integer.parseInt(calText.getText());
       dis = calText.getText();
         calText.setText(dis + "+");
       addbol = true;


                                            }}
class ListenMin implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub

       TEMP = Integer.parseInt(calText.getText());
       dis = calText.getText();
         calText.setText(dis + "-");
       subbol = true;

                                            }}
class ListenEql implements ActionListener{


@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
     TEMP2 = Integer.parseInt(calText.getText());
    if (subbol == true)
    {
    if(calText.getText().contains("-"))
    {
    String[] splt = calText.getText().split("-");
    String prt1 = splt[0];
    String prt2 = splt[1];


    TEMP2=Integer.parseInt(prt1)-Integer.parseInt(prt2);
    TEMP2=TEMP2+TEMP;

     calText.setText(dis+Integer.toString(TEMP2));
    }
    }


     else if ( addbol == true)
     {

    if(calText.getText().contains("+"))
    {
    String[] splt = calText.getText().split("+");
    String prt1 = splt[0];
    String prt2 = splt[1];

    TEMP2=Integer.parseInt(prt1)+Integer.parseInt(prt2);
    TEMP2=TEMP2+TEMP;
     calText.setText(dis+Integer.toString(TEMP2));

    }
    }

     /*TEMP2= Integer.parseInt(calText.getText());
     if (addbol == true)
     {
         TEMP2 = TEMP2 + TEMP;
     }
     else if ( subbol == true)
     {
         TEMP2 = TEMP2 - TEMP;
     }
     calText.setText(Integer.toString(TEMP2));
     addbol = false;
     subbol = false;
     */

    subbol = false;
     addbol = false;

                                            }}


}