The bell had rung, ending the school day, but several students stayed behind. Some checked chicken coops. Others fed cattle ...

Abstract: Ownership and related systems impose restrictions on the object graph that can help improve program structure, exploit concurrency and verify software. Such systems rely on the presence of ...

Abstract: In this paper combining with the characteristics of current printing enterprise warehouse, the use cases and business processes of warehouse management system are analyzed, and the functions ...

These benefits lead to more flexible, maintainable, and efficient code structures. Unfortunately, Java does not natively support class extensions (categories) and there is a little chance such support ...