What are the list of Java non primitive data types?

What are the list of Java non primitive data types?

I'll respond in English since you asked specifically for an English-only answer .

In Java, non-primitive data types are also known as reference types or objects. These are the fundamental building blocks of object-oriented programming (OOP) and are used to represent complex data structures. Here's a list of Java non-primitive data types:

Example: public class Dog { ... }

Example: public interface Flyable { void fly(); }

Example: int[] scores = new int[5];

Example: List<String> names = new ArrayList<>();

Example: List<Integer> numbers = new LinkedList<>();

Example: Map<String, Integer> ages = new HashMap<>();

Example: Set<String> uniqueWords = new HashSet<>();

Example: Set<Integer> orderedNumbers = new TreeSet<>();

Example: Map<String, String> bookTitles = new HashMap<>();

Example: Map<String, Integer> sortedAges = new TreeMap<>();

Example: List<String> names = Arrays.asList("John", "Mary"); Iterator<String> iterator = names.iterator();

Example: Comparator<Integer> intComparator = new Comparator<Integer>() { ... };

These are just a few examples of Java non-primitive data types. Each has its unique characteristics, methods, and use cases, making them essential components in building robust and efficient programs.

Would you like me to elaborate on any specific topic or provide more examples?

What is primitive vs derived data types in Java?

In Java, primitive data types are the built-in data types that are provided by the language itself, whereas derived data types are the custom data types that can be created using classes and interfaces.

Primitive Data Types:

These primitive data types are the fundamental building blocks of any Java program. They can be used as variables, function parameters, or return values.

Derived Data Types:

Derived data types are created using classes and interfaces, which define the characteristics and behaviors of the data type. They can be used to represent more complex data structures or to create custom data types that are specific to a particular domain.

Key differences between primitive and derived data types:

In summary, primitive data types are the fundamental building blocks of Java programming, while derived data types are custom-created using classes and interfaces to represent more complex data structures or specific domain-specific data types.