Java: '.class' expected error when passing array to function [closed]

Question

I'm taking a java class, but have been away from it for a bit.

Trying to get this sorting program to work:

import java.util.*;
public class Assignment1 
{
   private int[] nums;
   private int[] ast;

   private int n;

   public void sort(int[] vals)
   {
      this.nums = vals;
      n = vals.length;
      this.ast = new int[n];
      merges(0, n - 1);
   }   

   private void merges(int bot, int top)
   {
      if (bot < top)
      {
         int mid = bot + (top - bot) / 2;
         merges(bot, mid);
         merges(mid + 1, top);
         merge(bot, mid, top);
      }
   }

   private void merge(int bot, int mid, int top)
   {
      for (int i = bot; i <= top; i++)
      {
         ast[i] = nums[i];
      }
      int i = bot;
      int j = mid + 1;
      int k = bot;
      while (i <= mid && i <= top)
      {
         if (ast[i] <= ast[j])
         {
            nums[k] = ast[i];
            i++;
         }
         else
         {
            nums[k] = ast[j];
            j++;
         }
         k++;
      }
      while (i <= mid)
      {
         nums[k] = ast[i];
         k++;
         i++;
      }
   }

   private void show()
   {
      System.out.print("Sorted Array:  ");
      for(int l=0;l<nums.length;l++)
      {
         System.out.print(nums[l] + "  ");
      }

   }
   public static void main(String[] args) 
   {
      Assignment1 a = new Assignment1();
      Scanner scan = new Scanner(System.in);
      System.out.print("\nArray Size: ");
      int s = scan.nextInt();
      int[] array = new int[s];
      for(int x=0;x<s;x++)
      {
         System.out.print("Enter Element " + (x + 1) + ":");
         array[x] = scan.nextInt();
      }


      a.sort(array[]);
      a.show();
   }
}

The error I'm getting is this:

Assignment1.java:82: error: '.class' expected
  a.sort(array[]);

I know it's something basic eluding me, but the basics are the things that are most hazy...

Answer 1

I believe the compiler thinks you are trying to pass in an class type into sort because you added the [] after array in your call to sort which is how you declare an array type.

Just change

a.sort(array[]) 

to

 a.sort(array)

because you have already initialized array as an int[] type/array earlier in your method.

You only need to add the [] during the intialization. After that, the variable name for an array is referenced just like the variable name for any other variable.