ArrayList and Passing values

Question

I am new to programming and we just learned ArrayLists in my class today and I have an easy question for you guys, I just can't seem to find it in the notes on what to set the passing value equal to. The point of this practice program is to take in a Number Object (that class has already been created) and those Numbers in the ArrayList are supposed to be counted as odds, evens, and perfect numbers. Here is the first couple of lines of the program which is all you should need.

import java.util.ArrayList;
import static java.lang.System.*;
public class NumberAnalyzer {

    private ArrayList<Number> list;

    public NumberAnalyzer() {
        list = new ArrayList<Number>();
    }

    public NumberAnalyzer(String numbers) {

    }

    public void setList(String numbers) {

    }

What am I supposed to set (String numbers) to in both NumberAnalyzer() and setList()? Thanks in advance for answering a noob question!

    NumberAnalyzer test = new NumberAnalyzer("5 12 9 6 1 4 8 6");
    out.println(test);
    out.println("odd count = "+test.countOdds());
    out.println("even count = "+test.countEvens());
    out.println("perfect count = "+test.countPerfects()+"\n\n\n");

This is the Lab16b Class that will run the program. ^^

public class Number
{
private Integer number;
public Number()
{
    number = 0;
}
public Number(int num)
{
    number = num;
}
public void setNumber(int num)
{
    number = num;
}
public int getNumber()
{
    return 0;
}
public boolean isOdd()
{
    return number % 2 != 0;
}
public boolean isPerfect()
{
    int total=0;
    for(int i = 1; i < number; i++)
    {
        if(number % i == 0)
        {
            total = total + i;
        }
    }
    if(total == number)
    {
        return true;
    }
    else
    {
        return false;
    }
}
public String toString( )
{
    return "";
}
}

Here is the Number class. ^^

Answer 1

Based on the information you provided, this is what I feel NumberAnalyzer should look like. The setList function is presently being used to take a String and add the numbers in it to a new list.

public class NumberAnalyzer {

    private List<Number> list;

    public NumberAnalyzer() {
        this.list = new ArrayList<Number>();
    }

    public NumberAnalyzer(String numbers) {
        setList(numbers);
    }

    public void setList(String numbers) {
        String[] nums = numbers.split(" ");
        this.list = new ArrayList<Number>();
        for(String num: nums) 
            list.add(new Number(Integer.parseInt(num)));
    }

}