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The Way to Go

The Object Orientation in Go

Explore how Go achieves object-oriented programming without classes by using loosely coupled types, interfaces, and composition. Understand how encapsulation is managed through package scope and exporting rules, how inheritance is realized with embedded types, and how polymorphism relies on interfaces. Gain insight into Go's unique approach that differs from traditional OO languages, helping you design adaptable code in Go.

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Summary on object orientation

Let us summarize what we have seen about object orientation in Golang so far: Go has no classes, but instead, it has loosely coupled types and their methods to implement interfaces. The three important aspects of OO-languages are encapsulation, inheritance, and polymorphism. How are they realized in Go?

  • Encapsulation (data hiding): in contrast to other OO languages where there are four or more access-levels, Go simplifies this to only
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