摘要:
1.题目:Implement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), the plus+or ... 阅读全文
摘要:
答案是,不会。子类优先实现父类的方法,虽然父类的方法和接口的方法长得一模一样。class father{ public void f(){}}interface sameInterface{ public void f();}class son extends father implem... 阅读全文