calculator

Calculator.java

@@ -0,0 +1,44 @@
+public class Calculator {
+
+    // 加法
+    public double add(double a, double b) {
+        return a + b;
+    }
+
+    // 减法
+    public double subtract(double a, double b) {
+        return a - b;
+    }
+
+    // 乘法
+    public double multiply(double a, double b) {
+        return a * b;
+    }
+
+    // 除法
+    public double divide(double a, double b) {
+        if (b == 0) {
+            throw new IllegalArgumentException("Denominator cannot be zero.");
+        }
+        return a / b;
+    }
+
+    // 取余
+    public double remainder(double a, double b) {
+        return a % b;
+    }
+
+    // 主函数，用于测试计算器
+    public static void main(String[] args) {
+        Calculator calc = new Calculator();
+
+        double num1 = 10;
+        double num2 = 5;
+
+        System.out.println("Add: " + calc.add(num1, num2));
+        System.out.println("Subtract: " + calc.subtract(num1, num2));
+        System.out.println("Multiply: " + calc.multiply(num1, num2));
+        System.out.println("Divide: " + calc.divide(num1, num2));
+        System.out.println("Remainder: " + calc.remainder(num1, num2));
+    }
+}