Java gives you the ability to dynamically create strings. Even after you set the string value, you can add more characters to the string value throughout the code. This process lets you build a string ...

Java programs without a graphical user interface use a computer's command line to interact with the user. It is vital that the program's command line output is properly formatted and spaced so that it ...

A regex of the form [:alpha:]{2}\d{3} should do the trick. If your regex engine doesn't support [:alpha:], use [a-zA-Z] instead.