Write a class named ParkingMeter containing: Two instance variables named timeLeft and maxTime of type int. The value of timeLeft should be initialized to 0. A constructor accepting a single integer parameter whose value is used to initialize the maxTime instance variable. A method named add that accepts an integer parameter. If the value of the parameter is equal to 25, the value of timeLeft is increased by 30; otherwise no increase is performed. Furthermore, the increase occurs only if the value of timeLeft will not exceed the value of maxTime. add returns a boolean value: true if timeLeft was increase, false otherwise. A method named tick that accepts no parameters and returns no value. tick decreases the value of timeLeft by 1, but only if the value of timeLeft is greater than 0. A method named isExpired that accepts no parameters. isExpired returns a boolean value: true if the value of timeLeft is equal to 0; false otherwise.

Question

Julio Mcpherson

Social Studies

6 January, 12:42

Write a class named ParkingMeter containing: Two instance variables named timeLeft and maxTime of type int. The value of timeLeft should be initialized to 0. A constructor accepting a single integer parameter whose value is used to initialize the maxTime instance variable. A method named add that accepts an integer parameter. If the value of the parameter is equal to 25, the value of timeLeft is increased by 30; otherwise no increase is performed. Furthermore, the increase occurs only if the value of timeLeft will not exceed the value of maxTime. add returns a boolean value: true if timeLeft was increase, false otherwise. A method named tick that accepts no parameters and returns no value. tick decreases the value of timeLeft by 1, but only if the value of timeLeft is greater than 0. A method named isExpired that accepts no parameters. isExpired returns a boolean value: true if the value of timeLeft is equal to 0; false otherwise.

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Answers (1)

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Pooh · Answer 1

The answer for the given question is explained below.

Explanation:

public class Parking Meter

{

int time Left = 0;

int max Time;

public Parking Meter (int max) {

max Time = max;

}

public boolean add (int coin)

{

if (coin = = 25)

{

if (time Left + 30 < max Time)

{

time Left + = 30;

return true;

}

}

return false;

}

public void tick ()

{

if (time Left > 0)

{

time Left - = 1;

}

}

public boolean is Expired ()

{

return time Left = = 0;

}

}