Variable currentWeights is declared as a HashSet. Then, integer numWeights is read from input representing the number of integers to be read next. For each integer read into variable weight:

Add weight to currentWeights.

If weight is successfully added, output "Weight registered: $",$ followed by weight.

Otherwise, output "Duplicate entered: $",$ followed by weight, and assign duplicateEntered with true.

End each output with a newline.

Ex: If the input is:

$454155494$

then the output is:

Weight registered: $54$ Weight registered: $15$ Duplicate entered: $54$

import java.util.HashSet;

import java.util.Scanner;

public class Weights $\{$

public static void main$($String$[]$ args$)\{$

Scanner scnr $=$ new Scanner$($System$.$in$)$;

HashSet currentWeights $=$ new HashSet$()$;

int numWeights;

int weight;

boolean duplicateEntered;

numWeights $=$ scnr$.$nextInt$()$;

duplicateEntered $=$ false;

while $($numWeights $>0)\{$

if $(!$duplicateEntered$)\{$

weight $=$ scnr$.$nextInt$()$;

$/*$ Your code goes here $*/$

$\}$

$--$numWeights;

$\}$

$\}$

$\}$