Failed to do this in Lab Exam today

[robust cliff]

<@&987246399047479336> please have a look, thanks.

[brittle verge]

ok so you already have some code right?

share it

[limber wagon]

not really, I mean I know the logic to delete duplicates

but the initial ask is the problem

how do i make those classes and instances

I will send the duplicate logic deletion code if that helps

package lab2;

import java.util.Arrays;
import java.util.Scanner;

public class DealershipRecords {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int numDealers = scanner.nextInt();
        scanner.nextLine();

        int[] inventorySizes = new int[numDealers];
        for (int i = 0; i < numDealers; i++) {
            inventorySizes[i] = scanner.nextInt();
            scanner.nextLine();
        }

        int totalInventories = Arrays.stream(inventorySizes).sum();

        double[] allInventories = new double[totalInventories];
        int currentIndex = 0;
        for (int i = 0; i < numDealers; i++) {
            for (int j = 0; j < inventorySizes[i]; j++) {
                allInventories[currentIndex++] = scanner.nextDouble();
            }
        }
        Arrays.sort(allInventories);

        for (int i = 0; i < totalInventories; i++) {
            if (i == 0 || allInventories[i] != allInventories[i - 1]) {
                System.out.print(allInventories[i] + " ");
                
            }

        }
    }
}

this is "completely wrong" my TA said

[robust cliff]

Detected code, here are some useful tools:

Formatted code

package lab2;

import java.util.Arrays;
import java.util.Scanner;

public class DealershipRecords {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int numDealers = scanner.nextInt();
    scanner.nextLine();
    int [] inventorySizes = new int [numDealers] ;
    for (int i = 0; i < numDealers; i++) {
      inventorySizes[i]  = scanner.nextInt();
      scanner.nextLine();
    }
    int totalInventories = Arrays.stream(inventorySizes).sum();
    double [] allInventories = new double [totalInventories] ;
    int currentIndex = 0;
    for (int i = 0; i < numDealers; i++) {
      for (int j = 0; j < inventorySizes[i] ; j++) {
        allInventories[currentIndex++]  = scanner.nextDouble();
      }
    }
    Arrays.sort(allInventories);
    for (int i = 0; i < totalInventories; i++) {
      if (i == 0 || allInventories[i]  != allInventories[i - 1] ) {
        System.out.print(allInventories[i]  + " ");
      }
    }
  }
}

[limber wagon]

he said use class and object principles