My road

1.面向对象，自定义类型。

       class  Book{
    String bookID;
String bookName;
String bookWriter;
String books;
}
public class Tast{
   public static void main(String[] args) {
Book[] boks = new bok[4];
          
       Book bok01 = new Book();




int bookID = 2;
Bok bookName = "剑行天下";
Bok bookWriter = "幻";
        Bok books = "玄幻";






System.out.println("编号: " + bok.bokID);
        System.out.println("书名: " + bok.bokName);
        System.out.println("作者: " + bok.bokWriter);
System.out.println("类型: " + bok.boks);






    
       Book bok02 = new Book();




int bookID = 2;
Bok bookName = "剑行天下";
Bok bookWriter = "幻";
        Bok books = "玄幻";






System.out.println("编号: " + bok.bokID);
        System.out.println("书名: " + bok.bokName);
        System.out.println("作者: " + bok.bokWriter);
System.out.println("类型: " + bok.boks);
      }
}