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Class CalculatorWithTimes
java.lang.Object
|
+----programming101.calculator.Calculator
|
+----.CalculatorWithTimes
- public class CalculatorWithTimes
- extends Calculator
Defines a simple graphic calculator consisting of a display region
for accepting input and displaying results, and a number of buttons
for various operations. The buttons respond "directly" when they are clicked.
They receive a standard ActionEvent from the
underlying windowing system. They also need information about the
state of the calculator - among other things, the
current cumulated value, the new value to be combined with the
cumulated value, the last button clicked, etc., and this must be
made accessible separately (in this case, through the constructors,
or an accessor method). The only buttons supplied here are:
ClearButton, EqButton, PlusButton,
TimesButton.
- Since:
- 15/03/98
- Version:
- 1.3 (7/04/98)
- Author:
- © 1998 Peter T. Sander
CalculatorWithTimes()
- No-args constructor.
CalculatorWithTimes
public CalculatorWithTimes()
- No-args constructor. Sets up the various calculator GUI components.
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