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Java基础 | 类和对象（下）

（三）封装1. private关键字是一个权限修饰符可以修饰成员（成员变量和成员方法）作用是保护成员不被别的类使用，被private修饰的成员只在本类中才能访问针对private修饰的成员变量，如果需要被其他类使用，提供相应的操作提供“get变量名()“方法，用于获取成员变量的值，方法用public...

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Java基础 | 类和对象（上）

类和对象（一）概念1.类的特点类是对象的数据类型类是具有相同属性和行为的一组对象的集合2.什么是对象的属性属性：对象具有的各种特征，每个对象的每个属性都拥有特定的值3.什么是对象的行为行为：对象能够执行的操作4.类和对象的关系类：类是对现实生活中一类具有共同属性和行为的事物的抽象对象：是能够看得到摸...

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