编写一个Book类，有name和pages两个属性，用java

以下是一个简单的Book类的Java示例，包含name和pages属性、构造函数和getter/setter方法：

public class Book {
    private String name;
    private int pages;
    
    public Book(String name, int pages) {
        this.name = name;
        this.pages = pages;
    }
    
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public int getPages() {
        return pages;
    }
    
    public void setPages(int pages) {
        this.pages = pages;
    }
}

可以使用如下代码创建一个Book对象，并设置其属性：

Book book = new Book("Java Programming", 500);
book.setName("Java Programming 2nd Edition");
book.setPages(600);
System.out.println(book.getName()); // 输出：Java Programming 2nd Edition
System.out.println(book.getPages()); // 输出：600