Scientific Calculator Source Code In Java Free Upd Download Jun 2026

// Equals else if (command.equals("=")) if (!operator.isEmpty() && !isNewInput) double secondNumber = Double.parseDouble(displayField.getText()); double result = calculate(firstNumber, secondNumber, operator); displayField.setText(String.valueOf(result)); currentInput = String.valueOf(result); isNewInput = true; operator = "";

// In CalculatorEngine.calculateUnary method case "sec": result = 1 / Math.cos(num); break; scientific calculator source code in java free download