Thread: Eliminating Duplicates in an Array

Write a method to eliminate the duplicate values in the array using the following method header:

public static int[] eliminateDuplicate(int[] numbers)

Write a test program that reads in ten integers, invokes the method, and displays the result. Here is the sample run of the program:

Enter ten numbers: 1 2 3 2 1 6 3 4 5 2
The distinct numbers are: 1 2 3 6 4 5

Here is my code:

import java.util.*;
 
public class EliminatingDuplicates {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.print("Enter ten numbers: ");		
		int[] numbers = new int[10];		
		for(int i = 0; i < numbers.length; i++) {
			int num = input.nextInt();
		}
		System.out.println("The distinct numbers are: "); 
		eliminateDuplicates(numbers);			
 	}
	public static void eliminateDuplicates(int[] numbers) {
		for(int i = 0; i < numbers.length; i++) {
			boolean distinct = true;
			for(int j = 0; j < i; j++) {
				if (numbers[i] == numbers[j]) {
					distinct = false;
					break;
				}
			if (distinct) 
				System.out.println(numbers[i]);
			}
		}
	}
}

My code compiles. However when I run the program, no distinct numbers show up. This is my output.

Enter ten numbers: 1 2 3 2 1 6 3 4 5 2
The distinct numbers are:

What am I doing wrong??

I think the problem is here:

for(int i = 0; i < numbers.length; i++) {
			int num = input.nextInt();
		}

I'm guessing you're trying to fill the array "numbers" with the numbers you input... But instead you used this "int num", you probably meant putting

numbers[i] = input.nextInt();

Thanks, I fixed up that part of the code. I am able to get numbers to show up after "The distinct numbers are:". However they are not correct. I think there may be something wrong with my eliminateDuplicates method but I'm not sure what it is.