【JAVASE小新】遍历List集合，使用冒泡算法排列数据

package Gather.List;

import java.util.ArrayList;
import java.util.List;


public class ListExercise02 {
    @SuppressWarnings({"all"})
    public static void main(String[] args) {

        List list = new ArrayList<>();
        list.add(new Book("人间失格","太宰治",50));
        list.add(new Book("三国演义","罗贯中",90));
        list.add(new Book("西游记","吴承恩",100));
        list.add(new Book("朝花夕拾","鲁迅",70));
        list.add(new Book("D杀人案","江户川",60));
//        list.add(new Book("D杀人案","江户川",60));
        //遍历

        for (Object o :list) {
            System.out.println(o);
        }
        System.out.println("======排序后=====");
        //冒泡排序
        sort(list);
        for (Object o :list) {
            System.out.println(o);
        }

    }
    //静态方法，要求价格从小到大
    //冒泡排序
    public static void sort(List list){
        int listsize = list.size();
        for (int i = 0; i < listsize-1; i++) {
            for (int j = 0; j < listsize-1; j++) {
                //取出Book对象
                Book book1 = (Book) list.get(j);
                Book book2 = (Book) list.get(j+1);
                if (book1.getPrice() > book2.getPrice()){
                    list.set(j,book2);
                    list.set(j+1,book1);
                }
            }

        }
    }
}
class Book{
    private String name;
    private String author;
    private int price;

    public Book(String name, String author, int price) {
        this.name = name;
        this.author = author;
        this.price = price;
    }

    @Override
    public String toString() {
        return "名称:"+name+
                "tt作者:" +author+
                "tt价格:"+price;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public int getPrice() {
        return price;
    }

    public void setPrice(int price) {
        this.price = price;
    }
}