They can write portable code that depends only upon the methods that are exposed in the standard public apis 他们可以编写可移植的代码，该代码仅依赖于标准的公共api中公布的方法。
2.
This ensures highly portable code that requires little or no change for use on different unix systems 这样就可以保证这些非常轻便的代码可以稍加修改或者不加修改地在不同的unix系统上使用。
3.
The biggest benefit of using the java platform for wireless device development is that you re able to produce portable code that can run on multiple platforms 将java平台用于无线设备开发的最大优点是能够产生可在多种平台上运行的可移植代码。
