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This is our Project #8

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This is our Project #8

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Binary file added CALCULATOR.jar
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374 changes: 374 additions & 0 deletions Calculator.java
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import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.Font;
import java.awt.TextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.JOptionPane;


public class Calculator {

private JFrame frame;
private JTextField textField;

double first;
double second;
double result;
String operation;
String answer;



/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Calculator window = new Calculator();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the application.
*/
public Calculator() {
initialize();
}

/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.getContentPane().setFont(new Font("Tahoma", Font.BOLD, 18));
frame.setBounds(100, 100, 306, 459);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);

textField = new JTextField();
textField.setFont(new Font("Tahoma", Font.BOLD, 17));
textField.setHorizontalAlignment(SwingConstants.RIGHT);
textField.setBounds(10, 11, 269, 67);
frame.getContentPane().add(textField);
textField.setColumns(10);


//........................Row 1....................


JButton btnBackspace = new JButton("\uF0E7");
btnBackspace.setBounds(10, 89, 71, 55);
btnBackspace.setFont(new Font("Windings", Font.BOLD, 19));
btnBackspace.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String backspace=null;
if (textField.getText().length() > 0) {
StringBuilder strB=new StringBuilder(textField.getText());
strB.deleteCharAt(textField.getText().length() - 1);
backspace=strB.toString();
textField.setText(backspace);
}

}
});
frame.getContentPane().add(btnBackspace);

JButton btnClear = new JButton("C");
btnClear.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText(null);
}
});
btnClear.setBounds(76, 89, 71, 55);
btnClear.setFont(new Font("Tahoma", Font.BOLD, 18));
frame.getContentPane().add(btnClear);


JButton btnPercent = new JButton("%");
btnPercent.setBounds(142, 89, 71, 55);
btnPercent.setFont(new Font("Tahoma", Font.BOLD, 23));
btnPercent.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
first=Double.parseDouble(textField.getText());
textField.setText("");
operation="%";

}
});
frame.getContentPane().add(btnPercent);



JButton btnPlus = new JButton("+");
btnPlus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
first=Double.parseDouble(textField.getText());
textField.setText("");
operation="+";



}
});
btnPlus.setBounds(208,89, 71, 55);
btnPlus.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btnPlus);





//........................Row 2....................


JButton btn7 = new JButton("7");
btn7.setBounds(10, 155, 71, 55);
btn7.setFont(new Font("Tahoma", Font.BOLD, 23));
btn7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String number=textField.getText()+btn7.getText();
textField.setText(number);

}
});
frame.getContentPane().add(btn7);

JButton btn8 = new JButton("8");
btn8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String number=textField.getText()+btn8.getText();
textField.setText(number);
}
});
btn8.setBounds(76, 155, 71, 55);
btn8.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btn8);


JButton btn9 = new JButton("9");
btn9.setBounds(142, 155, 71, 55);
btn9.setFont(new Font("Tahoma", Font.BOLD, 23));
btn9.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
String number=textField.getText()+btn9.getText();
textField.setText(number);
}
});
frame.getContentPane().add(btn9);



JButton btnSub = new JButton("-");
btnSub.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
first=Double.parseDouble(textField.getText());
textField.setText("");
operation="-";
}
});
btnSub.setBounds(208, 155, 71, 55);
btnSub.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btnSub);


//........................Row 3....................


JButton btn4 = new JButton("4");
btn4.setBounds(10, 221, 71, 55);
btn4.setFont(new Font("Tahoma", Font.BOLD, 23));
btn4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String number=textField.getText()+btn4.getText();
textField.setText(number);

}
});
frame.getContentPane().add(btn4);

JButton btn5 = new JButton("5");
btn5.setBounds(76, 221, 71, 55);
btn5.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
String number=textField.getText()+btn5.getText();
textField.setText(number);

}
});
btn5.setFont(new Font("Tahoma", Font.BOLD, 21));
frame.getContentPane().add(btn5);


JButton btn6 = new JButton("6");
btn6.setBounds(142, 221, 71, 55);
btn6.setFont(new Font("Tahoma", Font.BOLD, 23));
btn6.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
;String number=textField.getText()+btn6.getText();
textField.setText(number);


}
});
frame.getContentPane().add(btn6);



JButton btnMult = new JButton("*");
btnMult.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
first=Double.parseDouble(textField.getText());
textField.setText("");
operation="*";

}
});
btnMult.setBounds(208, 221, 71, 55);
btnMult.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btnMult);



//........................Row 4....................


JButton btn1 = new JButton("1");
btn1.setBounds(10, 287, 71, 55);
btn1.setFont(new Font("Tahoma", Font.BOLD, 23));
btn1.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
String number=textField.getText()+btn1.getText();
textField.setText(number);
}
});
frame.getContentPane().add(btn1);

JButton btn2 = new JButton("2");
btn2.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
String number=textField.getText()+btn2.getText();
textField.setText(number);
}
});
btn2.setBounds(76, 287, 71, 55);
btn2.setFont(new Font("Tahoma", Font.BOLD, 21));
frame.getContentPane().add(btn2);


JButton btn3 = new JButton("3");
btn3.setBounds(142, 287, 71, 55);
btn3.setFont(new Font("Tahoma", Font.BOLD, 23));
btn3.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
String number=textField.getText()+btn3.getText();
textField.setText(number);
}
});
frame.getContentPane().add(btn3);



JButton btnDivide = new JButton("/");
btnDivide.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0 ) {
first=Double.parseDouble(textField.getText());
textField.setText("");
operation="/";

}
});
btnDivide.setBounds(208, 287, 71, 55);
btnDivide.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btnDivide);



//........................Row 5....................


JButton btn0 = new JButton("0");
btn0.setBounds(10, 353, 71, 55);
btn0.setFont(new Font("Tahoma", Font.BOLD, 23));
btn0.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0 ) {
String number=textField.getText()+btn0.getText();
textField.setText(number);
}
});
frame.getContentPane().add(btn0);

JButton btnDot= new JButton(".");
btnDot.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0 ) {
String number=textField.getText()+btnDot.getText();
textField.setText(number);
}
});
btnDot.setBounds(76, 353, 71, 55);
btnDot.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btnDot);


JButton btnPM = new JButton("+ -");
btnPM.setBounds(142, 353, 71, 55);
btnPM.setFont(new Font("Tahoma", Font.BOLD, 20));
btnPM.addActionListener(new ActionListener() {
public void actionPerformed( ActionEvent arg0) {
double ops = Double.parseDouble(String.valueOf(textField.getText()));
ops = ops * (-1);
textField.setText(String.valueOf(ops));
}
});
frame.getContentPane().add(btnPM);


JButton btnEquals = new JButton("=");
btnEquals.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
second = Double.parseDouble(textField.getText());
if (operation.equals("+")) {
result = first + second;
} else if (operation.equals("-")) {
result = first - second;
} else if (operation.equals("*")) {
result = first * second;
} else if (operation.equals("/")) {
if (second != 0) {
result = first / second;
} else {
JOptionPane.showMessageDialog(frame, "Error: Division by zero");
textField.setText("");
return;
}
} else if (operation.equals("%")) {
result = first % second;
}

answer = String.format("%.2f", result);
textField.setText(answer);
}
});
btnEquals.setBounds(208, 353, 71, 55);
btnEquals.setFont(new Font("Tahoma", Font.BOLD, 20));
frame.getContentPane().add(btnEquals);

// ...

}


}
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