import javax.swing.*;
import java.awt.event.*;
import java.math.*;


public class Calc implements ActionListener{

  private JButton btnAdd, btnMinus, btnDivide, btnMulti, btnPercent, btnSqRoot, btnClear, btnHelp;
  private JLabel lblNumber1, lblNumber2,lblResult, lblPercentage, lblSqRoot, lblClear, lblHelp;
  private JTextField txtNumber1, txtNumber2, txtResult;
  private JPanel panel;
  private JFrame frame;
  double Result1;

  public Calc(){
   frame = new JFrame();
   frame.setTitle("Calculator");
   frame.setSize(500,400);
   frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);

   panel = new JPanel();
   panel.setLayout(null);

   lblNumber1 = new JLabel("First Number");
   lblNumber1.setBounds(10, 50, 100, 20);
   panel.add(lblNumber1);

   txtNumber1 = new JTextField("");
   txtNumber1.setBounds(110, 50, 150, 20);
   panel.add(txtNumber1);

   lblNumber2 = new JLabel("Second Number");
   lblNumber2.setBounds(10, 70, 100, 20);
   panel.add(lblNumber2);

   txtNumber2= new JTextField("");
   txtNumber2.setBounds(110, 70, 150, 20);
   panel.add(txtNumber2);

   lblResult = new JLabel("Result");
   lblResult.setBounds(10, 90, 100, 20);
   panel.add(lblResult);

   txtResult= new JTextField("");
   txtResult.setBounds(110, 90, 150, 20);
   panel.add(txtResult);




   btnAdd = new JButton("Add");
   btnAdd.setBounds(50, 200, 100, 20);
   btnAdd.addActionListener(this);
   panel.add(btnAdd);


   btnMinus = new JButton("Subtract");
   btnMinus.setBounds(150, 200, 100, 20);
   btnMinus.addActionListener(this);
   panel.add(btnMinus);


   btnDivide = new JButton("Divide");
   btnDivide.setBounds(250, 200, 100, 20);
   btnDivide.addActionListener(this);
   panel.add(btnDivide);

   btnMulti = new JButton("Multiply");
   btnMulti.setBounds(350, 200, 100, 20);
   btnMulti.addActionListener(this);
   panel.add(btnMulti);

   btnPercent = new JButton("Percentage");
   btnPercent.setBounds(50, 222, 100, 20);
   btnPercent.addActionListener(this);
   panel.add(btnPercent);

   btnSqRoot = new JButton("Sq Root");
   btnSqRoot.setBounds(150, 222, 100, 20);
   btnSqRoot.addActionListener(this);
   panel.add(btnSqRoot);

   btnClear = new JButton("Clear");
   btnClear.setBounds(250, 222, 100, 20);
   btnClear.addActionListener(this);
   panel.add(btnClear);

   btnHelp = new JButton("Help");
   btnHelp.setBounds(350, 222, 100, 20);
   btnHelp.addActionListener(this);
   panel.add(btnHelp);

   frame.getContentPane().add(panel);
   frame.setVisible(true);
  }

  public void actionPerformed(ActionEvent event){
   Object source = event.getSource();
   int s1, s2, s3;
   s1 = Integer.parseInt(txtNumber1.getText());
   s2 = Integer.parseInt(txtNumber2.getText());
   //s3 = Integer.parseInt(txtResult.getText());


   if (source == btnAdd)
   {
           txtResult.setText(String.valueOf(s1+s2));
   }

    if (source == btnMinus)
    {
        txtResult.setText(String.valueOf(s1-s2));
    }

    if (source == btnDivide)
    {
        txtResult.setText(String.valueOf(s1/s2));
    }

    if (source == btnMulti)
    {
        txtResult.setText(String.valueOf(s1*s2));
    }

    if (source == btnPercent)
    {
        txtResult.setText(String.valueOf(s2/s1*100));
    }

    if (source == btnSqRoot)
    {
        txtResult = Math.sqrt(String.valueOf(s1));
    }


  }

  public static void main(String[] args){
   Calc myCalc= new Calc();
  }
}

        txtResult = Math.sqrt(String.valueOf(s1));

       txtResult.setText(new String(" " + Math.sqrt(s1)));