?? flashingcoloredlight.java
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// Introduced in Chapter 3/** A flashing, colored light bulb. */public class FlashingColoredLight extends ColoredLight { /** No special initialization is required. */ public FlashingColoredLight() { super(); } /** Toggle the light's on status after returning a String. */ public String toString() { String result; if (isOn()) { result = "" + getColor(); } else { result = "."; } setOn(!isOn()); return result; }}
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