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- Write a ThreeWayLamp class that models the behavior of a lamp that uses a three-way bulb.These bulbs have actually four possible states: off, low light, medium light, and high light. Each tim the switch is activated, the bulb goes to the next state (from high, the next state is off, from off to low etc). The ThreeWayLamp class has a single method called switch() which takes a single int parameter indicating how many times the switch is activated. (you need to throw an exception if its negative). The switch() method should simply print out a message indicating the state of the bulb after it has changed Only in c++ languageWrite a ThreeWayLamp class that models the behavior of a lamp that uses a three-way bulb. These bulbs have actually four possible states: off, low light, medium light, and high light. Each tim the switch is activated, the bulb goes to the next state (from high, the next state is off, from off to low etc). The ThreeWayLamp class has a single method called switch() which takes a single int parameter indicating how many times the switch is activated. (you need to throw an exception if its negative). The switch() method should simply print out a message indicating the state of the bulb after it has changed.1) Implement a class Moth that models a moth flying along a straight line. The moth hasa position, which is the distance from a fixed origin. When the moth moves toward apoint of light, its new position is halfway between its old position and the position ofthe light source. Find the instance variable(s), define and implement the constructor(s), then supplythe following methods:- public void moveToLight(double lightPosition) - public double getPosition()2) Document your class, generate Javadoc documentation and produce a test program ‘MothTester’that construct a moth, move it toward a couple of light sources, and check that the moth’s positionis as expected. 3) Add a comment to your class Moth that explains how you can make the Moth immobile after 10moves.
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