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ReferenceMystery3

Language/Type: C# parameters reference semantics

The following program produces 4 lines of output. Write each line of output below as it would appear on the console. 

public class ReferenceMystery3
{
    public static void Main()
    {
        int x = 1;
        int[] a = new int[2];
        Mystery(x, a);
        Console.WriteLine(x + " " + a);

        x--;
        a[1] = a.length;
        Mystery(x, a);
        Console.WriteLine(x + " " + a);
    }

    public static void Mystery(int x, int[] a)
    {
        a[x]++;
        x++;
        Console.WriteLine(x + " " + a);
    }
}
line 1
line 2
line 3
line 4

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