如何使用java在更少的代码中使用switch case？

Question

here is the question:

Enter any character from keyboard, using switch case find whether charcater type:

alphabet , digit , arithmetic operator or relation operator or any special character ?

find if it is alphabet it is uppercase or lower case

Answer 1

Look at the java java.lang.Character class. There are methods isLetter(), isDigit(), isWhitespace(), etc. static methods which should help coalesce your code greatly.