如何将随机生成的数字复制到选择排序方法。 （JAVA）

Question

import java.util.ArrayList;
import java.util.Random;


public class Sorting
{
   public static int numOfComps = 0,
                     numOfSwaps = 0;

   public static void main(String[] args)
   {
        System.out.println("\nOriginal order:");
        int size = 5;

        ArrayList<Integer> list = new ArrayList<Integer>(size);


        for(int i = 1; i <= size; i++)
        {
           list.add(i);
        }

        Random rand = new Random();
        while(list.size() > 0)
        {
         int index = rand.nextInt(list.size());
         System.out.print(list.remove(index) + " ");
        }

      System.out.println();

       int[] test = convertIntegers(list);
       int[] a = new int[5];

       // Selection Sort
       System.out.println("\n\nSelection Sort");

       // Display copy of random generated number original order
       System.out.println("\nOriginal order:");      
       System.arraycopy(test, 0, a, 0, test.length);
       System.out.println(a + " ");

       // Selection Sort method
       selectionSort(a);

       System.out.println("\nSorted order: ");
       for(int element : a)
         System.out.print(element + " ");
    }

    public static int[] convertIntegers(ArrayList<Integer> integers)
    {
        int[] num = new int[integers.size()];
        for (int i=0; i < num.length; i++)
        {
        num[i] = integers.get(i).intValue();
        }
        return num;
     }

   public static void selectionSort(int[] array)
   {
      int startScan;   // Starting position of the scan
      int index;       // To hold a subscript value
      int minIndex;    // Element with smallest value in the scan
      int minValue;    // The smallest value found in the scan

      // The outer loop iterates once for each element in the
      // array. The startScan variable marks the position where
      // the scan should begin.
      for (startScan = 0; startScan < (array.length-1); startScan++)
      {
         // Assume the first element in the scannable area
         // is the smallest value.
         minIndex = startScan;
         minValue = array[startScan];

         // Scan the array, starting at the 2nd element in
         // the scannable area. We are looking for the smallest
         // value in the scannable area. 
         for(index = startScan + 1; index < array.length; index++)
         {
            if (array[index] < minValue)
            {
               minValue = array[index];
               minIndex = index;
            }

            // Counts the number of values comparisons
            numOfComps ++;
         }
         // Counts the number of values swaps
         if(minIndex != startScan)
            {
                numOfSwaps ++;
            }

         // Swap the element with the smallest value 
         // with the first element in the scannable area.
         array[minIndex] = array[startScan];
         array[startScan] = minValue;

      }
       System.out.println("\nNumber of comps = " + numOfComps);
       System.out.println("Number of swaps = " + numOfSwaps);
    }
}

如何编写代码以将随机生成的数字复制到选择排序方法，以便随机生成的数字可以在显示的标题“选择排序”下显示为精确副本，以及显示比较和交换的数量，和排序的顺序？我提供的代码无法正常工作。谢谢你的帮助。

Answer 1

for(int i = 0; i< arr.length; i++){
 //generate random number here and assign to arr[i]
}
enter code here

现在添加另一个for循环来显示数组中的所有内容，然后如果你想查看它是否有效，则使用另一个循环。