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Not to be confused with Yanderedev page but Yanderedev actually took a computer course.

public boolean IsEven(int number)
{
    if (number == 0)
    {
        return true;
    }
    else if (number == 1)
    {
        return false;
    }
    else if (number == 2)
    {
        return true;
    }
    else if (number == 3)
    {
        return false;
    }
    else if (number == 4)
    {
        return true;
    }
    else if (number == 5)
    {
        return false;
    }
    else if (number == 6)
    {
        return true;
    }
    else if (number == 7)
    {
        return false;
    }
    else if (number == 8)
    {
        return true;
    }
    else if (number == 9)
    {
        return false;
    }
    else
    {
        // We can assume all number higher than 9 are even.
        return true;
    }
]