public class Test{

    public static void main(String[] args){

        ____________

    }

    public static void func(){

        int s = 0, p = 1;

        for(int i = 2; i <= 5; i++){

            ____________

            s = s + p;

        }

        System.out.println("2! + 3! + 4! + 5! =" + s);

    }

}

第3行调用处 int area = ____________;

第9行返回值处 ____________

public class Example20 {

public static void main(String[] args) {

int area = ____________;

System.out.println("The area is " + area);

}

public static int getArea(int x, int y) {

int temp = x * y;

____________

}

}