网易2020校招笔试- 系统开发/研发工程师（提前批）

interface Alpha {
    void f()
}
class Beta implements Alpha {
    public void f() {
        System.out.println("Beta.f()")
    }
    public void g() {
        System.out.println("Beta.g()")
    }
}
public class Main {
    public static void main(String[] args) {
        Alpha a = new Beta()
        a.f()
        System.out.println(a.getClass().getName())
        try {
            Beta b = (Beta)a
            b.g()
        } catch (Exception e) {
            System.out.println("Error")
        }
    }
}

public static void main(String[] args) {
    Nowcoder nowcoder = new Nowcoder()
    int i = 0
    nowcoder.inc(i)
    i = i++
    System.out.println(i)
}
void inc(int i) {
    i++
}