Reference types

When the instances of our Character class are initialized, the hero and heroine variables don't hold their class information—instead, they hold a reference to where the object is located in the program's memory. If we assigned hero or heroine to another variable, the memory reference is assigned, not the character data. This has several implications, the most important being that if we have multiple variables storing the same memory reference, a change to one affects them all.

Topics like this are better demonstrated than explained; it's up to you to try this out in a practical example next.