public class CoinCounter {
    // constants giving the coin values in $
    static final double QUARTER_VALUE = 0.25;
    static final double DIME_VALUE = 0.10;   //  <==<1>
    static final double NICKEL_VALUE = 0.05; //  <==<1>
    static final double PENNY_VALUE = 0.01;  //  <==<1>                                       //  <==
    
    // fields contain the object's internal state
    private int myQuarters;   // total quarters
    private int myDimes;      // total dimes   <==<1>
    private int myNickels;    // total nickel  <==<1>
    private int myPennies;    // total pennies <==<1>
    
    // constructor (initialize object on creation)
    public CoinCounter( )
    {
        myQuarters = 0;       // no quarters
        myDimes = 0;          // no dimes <==<1>
        myNickels = 0;        // no nickels <==<1>
        myPennies = 0;        // no pennies <==<1>
    }
    
    // accessors (methods don't change object)
    public double getTotalDeposit( )
    {
        // <4>return total value of coins deposited in $
        return myQuarters*QUARTER_VALUE +
            myDimes*DIME_VALUE +
            myNickels*NICKEL_VALUE +
            myPennies*PENNY_VALUE;       // <==
    }
    
    public void print( )
    {
        // <2>output the coin values in a nice format
        System.out.println("Quarter value =\t" + myQuarters*QUARTER_VALUE);
        System.out.println("Dime value =   \t" + myDimes*DIME_VALUE);
        System.out.println("Nickel value = \t" + myNickels*NICKEL_VALUE);
        System.out.println("Penny value =  \t" + myPennies*PENNY_VALUE);
        /*System.out.println("Total deposit = " + (myQuarters*QUARTER_VALUE +
         myDimes*DIME_VALUE +  myNickels*NICKEL_VALUE +
         myPennies*PENNY_VALUE ) );
         */
        System.out.println("Total deposit = " + getTotalDeposit());
        System.out.println();
    }
    
    //  <6> toString method
    public String toString()
    {
        //  <== toString method
        return "Quarter value =\t" + myQuarters*QUARTER_VALUE + "\n" +
            "Dime value =   \t" + myDimes*DIME_VALUE + "\n" +
            "Nickel value = \t" + myNickels*NICKEL_VALUE + "\n" +
            "Penny value =  \t" + myPennies*PENNY_VALUE + "\n\n";
    }
    
    // modifiers (methods change object's state)
    public void deposit (int quarters, int dimes,
                         int nickels, int pennies)
    {
        // <3>update the totals to reflect this deposit
        myQuarters += quarters;
        myDimes += dimes;
        myNickels += nickels;
        myPennies += pennies;
    }
    
    // <6> clear method
    public void clear( ) {
        myQuarters = 0;
        myDimes = 0;
        myNickels = 0;
        myPennies = 0;
    }
}