2015年10月26日

some fragment of thinking in java part5
摘要： 1. Delegation a relationship that is not directly supported by Java. This is a midway between inheritance and composition, because you place a number 阅读全文
posted @ 2015-10-26 17:12 terminator-LLH 阅读(189) 评论(0) 推荐(0)
some fragment of thinking in java part4
摘要： 1. Every non-primitive methods has a toString() method"source = " +source; //an object of WaterSourcethe compiler sees you tring to add a String objec... 阅读全文
posted @ 2015-10-26 08:56 terminator-LLH 阅读(177) 评论(0) 推荐(0)

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