Write a class named GasTank containing: An instance variable named amount of type double, initialized to 0. A method named addGas that accepts a parameter of type double. The value of the amount instance variable is increased by the value of the parameter. A method named useGas that accepts a parameter of type double. The value of the amount instance variable is decreased by the value of the parameter. However, if the value of amount is decreased below 0, amount is set to 0. A method named isEmpty that accepts no parameters. isEmpty returns a boolean value: true if the value of amount is less than 0.1, and false otherwise. A method named getGasLevel that accepts no parameters. getGasLevel returns the value of the amount instance variable.

The solution in Java programming language is given in the explanation section

Pay close attention to the explanation of the steps given as comments

Explanation:

//Create class GasTank

class GasTank{

   //Set Instance Variable amount to 0

   private double amount = 0;

   //Create the method addGas

   public void addGas(double amtGas){

       this.amount+=amtGas;

   }

   //Create method useGas

   public void useGas(double amtGas){

       this.amount-=amtGas;

   }

   //Create the method isEmpty

   public boolean isEmpty(){

        if(this.amount<0.1){

           return true;

       }

        else{

            return false;

   }

}

   //Create method getGasLevel

   public double getGasLevel(){

       return this.amount;

   }

}

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