22 lines
464 B
Java
22 lines
464 B
Java
package state;
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/** Context — holds the current state and delegates behaviour to it */
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public class TrafficLight {
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private TrafficLightState state;
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public TrafficLight() {
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setState(new RedState());
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}
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public void setState(TrafficLightState newState) {
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this.state = newState;
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state.onEnter(this);
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}
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public void next() {
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state.next(this);
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}
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public String getColor() { return state.getColor(); }
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}
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