Scientific Calculator Source Code In Java Free Download -

(Logic Engine) import java.math.BigDecimal; import java.math.RoundingMode; import java.util.Stack; public class CalculatorEngine private double memory; private boolean degreeMode = true;

public String calculate(String expression, boolean isDegree) try Double.isInfinite(result)) return "Error"; // Round to 10 decimal places BigDecimal bd = new BigDecimal(result); bd = bd.setScale(10, RoundingMode.HALF_UP); // Remove trailing zeros String formatted = bd.toPlainString(); if (formatted.contains(".")) formatted = formatted.replaceAll("0*$", ""); formatted = formatted.replaceAll("\\.$", ""); return formatted; catch (Exception e) return "Error";

public String calculateUnary(String operation, String value, boolean isDegree) try double num = Double.parseDouble(value); double result = 0; switch (operation) x return String.valueOf(result); catch (Exception e) return "Error"; scientific calculator source code in java free download

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 "C": engine.clear(); displayField.setText("0"); break; case "CE": engine.clearEntry(); displayField.setText("0"); break; case "=": try String result = engine.calculate(currentText, isDegree); displayField.setText(result); catch (Exception ex) displayField.setText("Error"); break; case "+/-": if (currentText.startsWith("-")) displayField.setText(currentText.substring(1)); else if (!currentText.equals("0")) displayField.setText("-" + currentText); break; case "sin": case "cos": case "tan": case "asin": case "acos": case "atan": case "sinh": case "cosh": case "tanh": case "log": case "ln": case "√": case "∛": case "x²": case "x³": case "1/x": case "

# 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. (Logic Engine) import java

📋 Overview A scientific calculator built in Java Swing with support for basic arithmetic, trigonometric functions, logarithms, exponents, and more. This is a complete, ready-to-run project. 📁 Project Structure ScientificCalculator/ ├── src/ │ ├── ScientificCalculator.java │ ├── CalculatorEngine.java │ └── CalculatorUI.java ├── README.md └── build.bat (Windows) / build.sh (Linux/Mac) 💻 Complete Source Code 1. ScientificCalculator.java (Main Class) import javax.swing.*; import javax.swing.border.*; import java.awt.*; import java.awt.event.*; import java.math.BigDecimal; import java.math.RoundingMode; public class ScientificCalculator extends JFrame private JTextField displayField; private JPanel buttonPanel; private CalculatorEngine engine; private boolean isDegree = true; // true = DEG, false = RAD

@echo off echo Compiling Scientific Calculator... javac -d bin src/*.java if %errorlevel%==0 ( echo Compilation successful! echo Running Calculator... java -cp bin ScientificCalculator ) else ( echo Compilation failed! ) pause This is a complete, ready-to-run project

private double evaluateExpression(String expression) return new ExpressionEvaluator().evaluate(expression);