import java.util.Scanner;
import java.util.ArrayList;

public class TestArrayListUserInput {
	public static void main( String[] args )
	{
		// get a bunch of numbers from user
		System.out.println( "Enter positive integers (or -1 to end): " );
		Scanner input = new Scanner( System.in );
		ArrayList<Integer> numbers = new ArrayList<>();
		while( input.hasNext() )
		{
			int value = input.nextInt();
			if( value == -1 )
				break;
			if( !numbers.contains( value ))
				numbers.add( value );
		}
		// when done, print what is stored
		System.out.println( "We stored: " + numbers );
	}
}