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Mistake: treating a reference type as a value type

Mistake: treating a reference type as a value type

Learn about the common mistake of treating a reference type as a value type.

We'll cover the following...

Suppose that a customer enters a supermarket and buys a chewing gum. The customer was also a diligent collector of empty bottles and happened to cash in 4000 bottles in exchange for a 1000€ voucher. The cashier ...