问题：计算表达式

编写程序 显示以下式子的结果

$\frac{9.5\ast 4.5-2.5\ast 3}{45.5-3.5}$

public class Calculate {
    public static void main(String[] args) {
        double a = 9.5*4.5-2.5*3;
        double b = 45.5-3.5;
        double c = a/b;
        System.out.println("c = " + c);;
    }
}