We now have languages like Smalltalk, C++, Eiffel, and Java, each with the notion of object-orientation, an approach for structuring data and behavior together into classes and objects.

• 我们现在拥有像smalltalk、C++、Eiffel和Java，它们运用了面向对象技术，一种把数据和行为封装到类和对象的方法。