1. int

• Represents whole numbers, like 1, 2, -5, etc.
• Example: int age = 25;

2. double

• Represents floating-point numbers (numbers with a decimal point), like 3.14, -0.5, etc.
• Example: double pi = 3.14;

3. String

• Represents a sequence of characters, like "hello", "Dart", etc.
• Example: String name = "Alice";

4. bool

• Represents boolean values - either true or false.
• Example: bool isStudent = true;

5. List

• Represents an ordered collection of items of the same type.
• Example: List<int> numbers = [1, 2, 3];

6. Map

• Represents a collection of key-value pairs.
• Example: Map<String, int> scores = {'Alice': 90, 'Bob': 85};

7. Set

• Represents a collection of unique items, without any order.