package headfirst.state.gumballstate;public class NoQuarterState implements State {    GumballMachine gumballMachine;     public NoQuarterState(GumballMachine gumballMachine) {        this.gumballMachine = gumballMachine;    } 	public void insertQuarter() {		System.out.println("You inserted a quarter");		gumballMachine.setState(gumballMachine.getHasQuarterState());	} 	public void ejectQuarter() {		System.out.println("You haven't inserted a quarter");	} 	public void turnCrank() {		System.out.println("You turned, but there's no quarter");	 } 	public void dispense() {		System.out.println("You need to pay first");	}  	public String toString() {		return "waiting for quarter";	}}