The first principle is: "Program to an interface, not an implementation."

第一条是：“面向接口编程，而非面向实现编程”。

youdao

JMS is ideal in this situation because it is an interface specification — not an implementation.

在这种情况下JMS非常理想，因为它是一种接口规范——而不是实现。

youdao

Although the REST support is not an implementation of JAX-RS, it has more features than the specification defines.

虽然，对REST的支持并不是JAX - RS的一种实现，但是它具有比标准定义更多的特性。

youdao

The implication was that Google were not legally entitled to produce an implementation of those interfaces.

BBC: Viewpoint: Google and Oracle's Java clash must be resolved

We are therefore sending a message to all stakeholders to take a second look at this, and work together on the practical limitations in order to achieve an optimal, but not perfect, implementation of the concept.

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While some of the deployed protocols are in the public domain, the source code for particular applications have not been released yet making it difficult for security researchers to render an informed opinion on its implementation.

FORBES: Pressure Increases On Silent Circle To Release Application Source Code