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题目

编写一个类Book，具有name,price,press,author 然后创建5个对象放入ArrayList中，并实现按照price大小排序，

代码实现

class Comparator1 implements Comparator
   
    {	@Override	public int compare(Book book1, Book book2) {		if(book1.getPrice()>book2.getPrice()) {			return 1;		}else if(book1.getPrice()
    
     */{		private String name;	private String press;	private String author;	private double price;		public Book(String name, double price, String press, String author) {		super();		this.name = name;		this.price = price;		this.press = press;		this.author = author;	}		public String getName() {		return name;	}	public void setName(String name) {		this.name = name;	}	public double getPrice() {		return price;	}	public void setPrice(double price) {		this.price = price;	}	public String getPress() {		return press;	}	public void setPress(String press) {		this.press = press;	}	public String getAuthor() {		return author;	}	public void setAuthor(String author) {		this.author = author;	}	/*@Override	public int compareTo(Book book) {				if(this.price>book.price) {			return 1;		}else if(this.price
     
       list = new ArrayList<>();				list.add(book1);		list.add(book2);		list.add(book3);		list.add(book4);		list.add(book5);				Collections.sort(list,new Comparator1());				Iterator
      
        it = list.iterator();				while(it.hasNext()) {			System.out.println(it.next());		}	}}
      
     
    
   

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