Java:在这种情况下如何解析字符串？

Question

所以我用 Java 创建了一个简单的类，如下所示:

public class Book {
    private String author;
    private String title;

    public Book (String author, String title) {
        this.author = author;
        this.title = title;
    }
}

public void checkInfo     

有没有办法解析字符串(属性)以获得像这样的 Book 属性，而不是执行 bookA.title ？

Book bookA = new Book("George Orwell","Animal Farm")

String property = "title";
System.out.print(bookA.property);

提前致谢!

Answer 1

如果您确实想访问 String 等许多属性，我建议您使用Map<String, String>像这样:

public class Book
{
    private Map<String, String> properties = new HashMap();

    public void setProperty(String name, String value)
    {
        properties.set(name,string);
    }

    public String getProperty(String name)
    {
        return properties.get(name);
    }
}

现在你可以像这样使用:

Book book = new Book();

book.setProperty("title","Animal Farm");
book.setProperty("author","George Orwell");

System.out.println("Book: " + book.getProperty("title") + " by " + book.getProperty("author"))