Class类型类
1.获取类型类
public static void main(String[] args) throws Exception{
//获取Java中的类型类的方法
//方法一:
Class c = User.class;
//方法二:
User user = new User();
Class uc = user.getClass();
//方法三:
Class cf = Class.forName("com.abyiyi.domain.User");
//验证三种方法获取的结果 ==》全部一致
System.out.println(c == cf);
System.out.println(uc == cf );
System.out.println(c == uc);
}