Scientific Calculator Source Code In Java Free Download ⭐ Official

public void setAngleMode(boolean degree) this.degreeMode = degree;

@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 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 void setAngleMode(boolean degree) this

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 " java -cp bin ScientificCalculator ) else ( echo

public ScientificCalculator() engine = new CalculatorEngine(); initializeUI(); setTitle("Scientific Calculator"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setResizable(false); pack(); setLocationRelativeTo(null);

// Inner class for expression evaluation using Shunting-yard algorithm private class ExpressionEvaluator public double evaluate(String expression) return evaluateExpression(expression); private double evaluateExpression(String expr) Stack<Double> values = new Stack<>(); Stack<Character> operators = new Stack<>(); for (int i = 0; i < expr.length(); i++) c == '.') StringBuilder sb = new StringBuilder(); while (i < expr.length() && (Character.isDigit(expr.charAt(i)) else if (c == '(') operators.push(c); else if (c == ')') while (operators.peek() != '(') values.push(applyOperation(operators.pop(), values.pop(), values.pop())); operators.pop(); else if (isOperator(c)) while (!operators.isEmpty() && hasPrecedence(c, operators.peek())) values.push(applyOperation(operators.pop(), values.pop(), values.pop())); operators.push(c); while (!operators.isEmpty()) values.push(applyOperation(operators.pop(), values.pop(), values.pop())); return values.pop(); private boolean isOperator(char c) private boolean hasPrecedence(char op1, char op2) private double applyOperation(char op, double b, double a) switch (op) case '+': return a + b; case '-': return a - b; case '*': return a * b; case '/': if (b == 0) throw new ArithmeticException("Division by zero"); return a / b; case '%': return a % b; default: return 0;

public CalculatorEngine() this.memory = 0;