Exercise O13

The payroll interface is defined as follows:

public interface Payroll

{

double TAXRATE = 0.15; // tax rate

double getGrossPay( ); // to compute and return the gross pay

double getDeductions( ); // to compute and return the deductions

void printDetails( ); // to output the payroll

}

1. Write the definition of theclass HourlyPay that implements the interfacePayroll as follows:

• It has two private instance variables hours (double) andpayRate (double).
• The constructor without parameters initializes the instancevariable hours to 40 and payRate to 10.00
• It has an additional private instancemethod double getOverTime( ) that does the following: it returns 1.5 *(hours – 40) *payRate if the value of the instancemethod hours is greater than 40; and 0otherwise.
• Instance method getGrossPay( ) returns hours * payRate + overtime.
• Instance method getDeduction( ) returns TAXRATE * gross pay.
• Override the toString method of this classas follows: it uses the String.format( ) static method to create and return the followingstring:

PAYRATE:

HOURS:

OVERTIME:

GROSSPAY:

TAX DEDUCTION:

NETPAY:

• Public instance method printDetails( ) prints the payroll information above.

1. Write the definition of the class ExerciseO13 with the method main thatdoes the following:

• Define an object and initializes it with the defaultconstructor.
• Call the printDetails( ) method toprint its payroll information.
• Define an object and initializes it with the hours 50 and payrate $12.
• Call the printDetails( ) method toprint its payroll information.