Programming Concepts Every Developer Must Know

Less Common Terms You Should Be Familiar With

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In the world of programming, we often come across terms that are not as widely known but are crucial for deeper understanding and more effective coding. These concepts, while sometimes overlooked, can help bridge the gap between beginner and advanced knowledge, enhancing your ability to write cleaner and more efficient code.

Lets look at some of them

Nominally vs Structurally Types Languages

Nominally Typed Languages

In nominal typing, compatibility and equivalence between types are based on explicit declarations and names. Types are considered the same only if they share the same name or are explicitly declared to be equivalent, even if they have the same structure.

• Key Idea: Type compatibility is determined by name.
• Examples: Java, C++, C#, Swift

class Person {
    String name;
    int age;
}

class Employee {
    String name;
    int age;
}

Person p = new Person();
Employee e = new Employee();
// Even though Person and Employee have the same fields, you cannot assign one to the other.
p = e; // Compile-time error