If you want to build a case statement that represents every possible combination of two consecutively entered characters, that is going to be a very big case statement.
If, for example, the keypad has 16 keys, that is 256 possible entries.
If you want to build a case statement that represents every possible combination of two consecutively entered characters, that is going to be a very big case statement.
If, for example, the keypad has 16 keys, that is 256 possible entries.