INTERFACEEND Verb

Syntax

INTERFACEEND

Description

In BBj 6.0 and higher, the INTERFACEEND verb marks the end of a Custom Object interface definition.

Notes

The INTERFACEEND verb must be the only statement on the line (with one exception: it can end with a ; REM comment).

The INTERFACEEND verb is a syntax error if it's not paired with a preceding INTERFACE verb.

The INTERFACEEND verb may not be nested within any other CLASS, METHOD, or INTERFACE.

The interface definition (the area between INTERFACE and INTERFACEEND) can only contain METHOD statements. Any other statements or labels contained within the interface definition are unreachable and will not be executed.

An interface is similar to a class except that an interface does not define a method body. An interface definition can only contain METHOD statements. Within an interface definition, all other Custom Object verbs are considered to be a syntax error.

Example

rem ' Payroll

e1! = new Salaried()
e1!.setID(1)
e1!.setName("Mary Jones")
e1!.setMonthlySalary(5000)
e1!.print()
print "GL Account:",e1!.account()

e2! = new Hourly()
e2!.setID(2)
e2!.setName("John Smith")
e2!.setHourlyRate(15)
e2!.setHoursWorked(168)
e2!.print()
print "GL Account:",e2!.account()

interface public Address
    method public void address()
interfaceend

interface public Pay
    method public void print()
interfaceend

interface public GL
    method public BBjNumber account()
interfaceend

interface public Payable extends Pay, GL
    method public BBjNumber pay()
interfaceend

class public Employee
    field public BBjNumber ID
    field public BBjString Name$
classend

class public Salaried extends Employee implements Payable
    field public BBjNumber MonthlySalary

    method public BBjNumber pay()
        methodret #MonthlySalary
    methodend

    method public void print()
        print "Employee",#getID(),": ",#getName()
        print #pay():"($###,###.00)"
    methodend

    method public BBjNumber account()
        methodret 11111
    methodend

classend

class public Hourly extends Employee implements Payable
    field public BBjNumber HourlyRate
    field public BBjNumber HoursWorked

    method public BBjNumber pay()
        methodret #HourlyRate*#HoursWorked
    methodend

    method public void print()
        print "Employee",#getID(),": ",#getName()
        print #pay():"($###,###.00)"
    methodend

    method public BBjNumber account()
        methodret 22222
    methodend
    
classend
Example Type: BBj

See Also

Verbs - Alphabetical Listing