/** * 包装类: * 针对八种基本数据类型定义的引用类型成为包装类,有了类的特点就可以调用类的方法; * byte --> Byte * char --> Character * short --> Short * int --> Integer * long --> Long * boolean --> Boole...【阅读全文】
List<e>:interface 继承自Collection<e><br />API中是这么介绍的: An ordered collection (also known as a <i>sequence</i>). The user of this interface has precise control over where in the list each element is inserted. The user can access elements by their integer ind...【阅读全文】