java - java中的两个数组打乱顺序

Question

抱歉，我是java初学者。我定义了两个数组。其中一种类型是字符串，另一种类型是整数。现在，我想对它们进行洗牌。假设 id = {12, 45, 78, 23} 且 name = {"math", "physical", "art", "computer"}。例如，在洗牌后，数组将变为 id = {78,45,23,12} 和 name = {"physical", "art", "math", "computer"}。我写了下面的代码，但不起作用。我该如何修复它？

public class RandomNumber {

public static void main(String[] args) 
{
    long[] numbers = new long[4];
    Scanner input = new Scanner(System.in);
    Random id = new Random(4);
    String[] name = new String[4];

    for (int i=0; i<=numbers.length; i++)
    {
        System.out.print("Enter the numbers: ");
        numbers[i] = input.nextLong();
    }
    for (int i=0; i<=numbers.length; i++)
    {
        int randomPosition = id.nextInt(4);
        long temp = numbers[i];
        numbers[i] = randomPosition;
        numbers[randomPosition] = temp;
    }
    for (int i=0; i<name.length; i++)
    {
        System.out.println("Enter the name: ");
        name [i] = input.nextLine();
    }
    for (int i=0; i<name.length; i++)
    {
        int randomPosition = id.nextInt(4);
        String temp = name[i];
        name[i] = randomPosition;
        name [randomPosition] = temp;
    }
    for (int i=0; i<numbers.length; i++)
    {
        System.out.println(i + " ID = " + numbers[i] + " and name = " + name[i]);
    }
}  
}

Answer 1

可以获取这些数组并将它们添加到列表中，然后使用集合中的随机播放方法:

Collections.shuffle(List myList);

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