In a React class component, state is used to manage dynamic data that can change over time. The state is initialized in the constructor and updated using the this.setState() method.

Key Features:

• State Initialization: The state is defined in the constructor using this.state.
• Updating State: State is updated using the this.setState() method, which triggers a re-render of the component.
• Accessing State: State values are accessed via this.state.<stateVariable> within the class component.

State in class components allows for managing internal data and controlling component behavior, making the UI responsive to user interactions.