The Object-Oriented Thought Process
As with the first two editions, this book required the combined efforts of many people. I
would like to take the time to acknowledge as many of these people as possible, for
without them, this book would never have happened.
First and foremost, I would like to thank my wife Sharon for all of her help. Not only
did she provide support and encouragement throughout this lengthy process, she is also
the first line editor for all of my writing.
Object类基本特性:
Object类是所有Java类的根基类,也就意味着所有的Java对象都拥有Object类的属性和方法。如果在类的声明中未使用extends关键字指明其父类,则默认继承Object类。
public class Person {
...
}
//等价于:
public class Person extends Object {
...
}