Okay so i've been trying to learn more about overloading constructors, the "this" keyword, and to actually initialize values in constructors. I figured since many of my scripts contain some banking elements, why not try to make a Banking class, where i initialize what i want to withdraw, and amount in the constructor, to practice and make it stick better. However i ran into some major troubles, I keep getting nullPointerException whenever i try to create an object and initialize the values i