Scientific Calculator Source Code In Java Free Download -

# Save the code as ScientificCalculator.java javac ScientificCalculator.java CalculatorEngine.java java ScientificCalculator For any issues, check that all three Java files are in the same directory and compiled together. The calculator will open as a standalone window with full scientific functionality.

private class ButtonClickListener implements ActionListener private String command; public ButtonClickListener(String command) this.command = command; @Override public void actionPerformed(ActionEvent e) String currentText = displayField.getText(); switch (command) ": case "floor": case "ceil": case "!": case "%": case "π": case "e": case "rand": String result = engine.calculateUnary(command, currentText, isDegree); displayField.setText(result); break; default: // Handle digits, operators, and parentheses if (currentText.equals("0") && command.matches("[0-9]")) displayField.setText(command); else if (command.equals(".") && !currentText.contains(".")) displayField.setText(currentText + command); else if (command.matches("[0-9+\\-*/()]")) displayField.setText(currentText + command); else displayField.setText(currentText + command); break; scientific calculator source code in java free download

private JButton createStyledButton(String text) text.equals("tan")) button.setBackground(new Color(33, 150, 243)); button.setForeground(Color.WHITE); button.addMouseListener(new MouseAdapter() public void mouseEntered(MouseEvent e) button.setBackground(button.getBackground().darker()); public void mouseExited(MouseEvent e) button.setBackground(button.getBackground().brighter()); ); return button; # Save the code as ScientificCalculator

public static void main(String[] args) SwingUtilities.invokeLater(() -> try UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); catch (Exception e) e.printStackTrace(); new ScientificCalculator().setVisible(true); ); default: // Handle digits