Behavioral Design Pattern: State Example With Java Implementation

The State is one of the Behavioral design patterns, In this the behavior of a class changes based on its state.
Key concepts:
Context: Class/object whose behavior changes based on state
State: abstract state
Concrete State: representing various states, which changes the behavior of the Context class.
Let's understand this with an example:
State.java

public interface State {
    public void doAction(Context context);
}

    
    

    
    




Concrete Implementation of State

public class StartState implements State {
    private Context context;
    public StartState(){}
    @Override
    p...