Question

The following singleton class works fine,

public class Elvis
{
    private static Elvis elvis = new Elvis();

    private Elvis()
    {

    }

    public static Elvis Instance()
    {
        return elvis;
    }
}

However, when I change return elvis; to return this.elvis, I get non-static variable this cannot be referenced from a static context. Why is this?

Answer 1

this refers to the current object instance. A static method is not contained in an object, it is contained by the class.