用java 编写有10个硬盘，有两个重要的属性：价格和容量。编写一个应用程序，分别按照价格和容量排序并输出10个硬盘的相应信息

好的，以下是 Java 代码实现：

import java.util.Arrays;
import java.util.Comparator;

public class HardDisk {
    private double price;
    private double capacity;

    public HardDisk(double price, double capacity) {
        this.price = price;
        this.capacity = capacity;
    }

    public double getPrice() {
        return price;
    }

    public double getCapacity() {
        return capacity;
    }

    public String toString() {
        return "Price: " + price + ", Capacity: " + capacity;
    }

    public static void main(String[] args) {
        HardDisk[] hardDisks = new HardDisk[10];
        hardDisks[0] = new HardDisk(100, 500);
        hardDisks[1] = new HardDisk(50, 250);
        hardDisks[2] = new HardDisk(200, 1000);
        hardDisks[3] = new HardDisk(75, 375);
        hardDisks[4] = new HardDisk(150, 750);
        hardDisks[5] = new HardDisk(225, 1125);
        hardDisks[6] = new HardDisk(120, 600);
        hardDisks[7] = new HardDisk(90, 450);
        hardDisks[8] = new HardDisk(180, 900);
        hardDisks[9] = new HardDisk(60, 300);

        // 按价格排序
        Arrays.sort(hardDisks, Comparator.comparing(HardDisk::getPrice));
        System.out.println("按价格排序：");
        for (HardDisk hardDisk : hardDisks) {
            System.out.println(hardDisk.toString());
        }

        // 按容量排序
        Arrays.sort(hardDisks, Comparator.comparing(HardDisk::getCapacity));
        System.out.println("按容量排序：");
        for (HardDisk hardDisk : hardDisks) {
            System.out.println(hardDisk.toString());
        }
    }
}

这个程序定义了一个 HardDisk 类，包含价格和容量两个属性，以及按价格和容量排序的方法。在 main 方法中，创建了 10 个 HardDisk 对象，并调用了排序方法，最后输出了排序结果。