/**
* An interface action has been performed. Find out what it was and handle it.
*
* @param event The event that has occured.
*/
public void actionPerformed(ActionEvent event) {
String command = event.getActionCommand();
if (command.equals("0")
|| command.equals("1")
|| command.equals("2")
|| command.equals("3")
|| command.equals("4")
|| command.equals("5")
|| command.equals("6")
|| command.equals("7")
|| command.equals("8")
|| command.equals("9")) {
int number = Integer.parseInt(command);
calc.numberPressed(number);
} else if (command.equals("A")
|| command.equals("B")
|| command.equals("C")
|| command.equals("D")
|| command.equals("E")
|| command.equals("F")) {
int number = getNumberFromHexString(command);
calc.numberPressed(number);
} else if (command.equals("+")) {
calc.plus();
} else if (command.equals("-")) {
calc.minus();
} else if (command.equals("=")) {
calc.equals();
} else if (command.equals("C")) {
calc.clear();
} else if (command.equals("?")) {
showInfo();
}
// Exercise 1 multi
else if (command.equals("*")) {
calc.multiplication();
}
// Exercise 1 division
else if (command.equals("/")) {
calc.division();
} else if (command.equals("Cl")) {
// had to change this, so it works in hexadecimal mode
calc.clear();
} else if (command.equals("Hexadecimal mode")) {
calc.flipHexSwitch(); // flip the switch
}
// else unknown command.
redisplay();
}
