public void genSeed(ActionEvent e) {
long seed = 0;
boolean redo = false;
do {
redo = false;
String seedString =
JOptionPane.showInputDialog(
this, "Enter a number:", Long.toString(rand.nextLong(), 36)
// "Random Seed", JOptionPane.QUESTION_MESSAGE
);
if (seedString == null) return;
try {
seed = Long.parseLong(seedString, 36);
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(this, "Use only letters and numbers, max 12 characters.");
redo = true;
}
} while (redo);
genSeed(seed);
}
private void handleException(Throwable ex) {
ex.printStackTrace();
JOptionPane.showMessageDialog(
this, ex.toString(), ex.getClass().getName(), JOptionPane.ERROR_MESSAGE);
}