面向对象开发技术中,对象定义为系统中用来描述客观事物的一个实体,对象之间通过( )执行有关操作。
本题考察面向对象方法所涉及的基本概念。面向对象=对象+分类+继承+通过消息的通信。其中消息指对象之间进行通信的一种构造,对象间通过消息的传递/通信去执行某些活动;继承是父类对象与子类之间共享数据和方法的机制,是一种关系的体现;调用通常用于表示将程序的执行交给其他代码段。
( )is the process of transforming information so it is unintelligible to anyone but the intended recipient.
As each application module is completed,it undergoes( )to ensure that it operates correctly and reliably.
( )algorithm specifies the way to arrange data in a particular order.
After analyzing the source code,( )generates machine instructions that will carry out the meaning of the program at a later time.
( )can help organizations to better understand the information contained within the data and will also help identify the data that is most important to the business and future business decisions.
浏览器开启无痕浏览模式后,( )依然会被保存下来。
下列协议中,不属于TCP/IP协议簇的是( )。
下列传输介质中,带宽最宽、抗干扰能力最强的是( )。
数控编程常需要用参数来描述需要加工的零件的图形。在平面坐标系内,确定一个点需要2个独立的参数,确定一个正方形需要( )个独立的参数。
某书的页码为1,2,3,...,共用数字900个(一个多位数页码包含多个数字),据此可以推断,该书最大的页码为( )。