Day-4 Data Types

Source: Dev.to

Data types

Data types are the kinds of information stored in a variable (e.g., numbers, characters, true/false, etc.).

There are two categories of data types:

• Primitive data types
• Non‑primitive data types

Primitive data types

Note: Boolean occupies 1 bit (the smallest addressable unit is typically 1 byte).

Non‑primitive data types

String

• String values are enclosed in double quotation marks (").
• A String can store any text, including:
  • Names → "John"
  • Sentences → "I love programming"
  • Numbers as text → "12345"
  • Symbols → "@#$%"
  • Addresses → "New York, USA"

Internally, a String stores a sequence of characters.