I created a method for adding complex numbers that should return a value of type NameOfaClass. I also have two instance variables declared of type double (real and imaginary). The method is called from another class.:
public NameOfaClass sum(NameOfaClass number)
{
NameOfaClass somevalue = number;
return (somevalue.real+this.real)+(somevalue.imaginary+this.imaginary);
}
I get an error however saying that a double type cannot be converted to NameOfaClass type. Can anyone suggest how I could calculate this and return a value of type NameOfaClass? Do I need to create a new object of type NameOfaClass and somehow return the desired value? Help is greatly appreciated!

Already figured it out. I created a new object of the class and returned it directly.