用户在问题前或后添加的格式限制：
使用java创建一个简单的计算器程序，包含加减乘除四个方法
user
```java
public class SimpleCalculator {
    public static int add(int a, int b) {
        return a + b;
    }

    public static int subtract(int a, int b) {
        return a - b;
    }

    public static int multiply(int a, int b) {
        return a * b;
    }

    public static int divide(int a, int b) {
        if (b == 0) {
            throw new IllegalArgumentException("Cannot divide by zero!");
        }
        return a / b;
    }

    public static void main(String[] args) {
        System.out.println("Addition: " + add(10, 5));
        System.out.println("Subtraction: " + subtract(10, 5));
        System.out.println("Multiplication: " + multiply(10, 5));
        System.out.println("Division: " + divide(10, 5));
    }
}
```
assistant