String in Switch statement

Question

i know char and integers are accepted by switch statements as arguments..
me and my friend are just wondering why the creators of java doesnt included Strings...
ex.
case "myFirstChoice":
    {statement}
case "mySecondChoice":
    {statement}
case "myThirdChoice":
    {statement}etc
we know that we can simplify it by just using char or integer as
case 'A':
case 'B':
case 'C':or
case '1':
case '2':
case '3':we hope someone knows the answer.. thank you very much.. have a nice day!

Answer 1

The JLS says this:
The prohibition against using null as a switch label prevents one from writing code that can never be executed. If the switch expression is of a reference type, such as a boxed primitive type or an enum, a run-time error will occur if the expression evaluates to null at run-time.
It follows that if the switch expression is of an enum type, the possible values of the switch labels must all be enum constants of that type.
Compilers are encouraged (but not required) to provide a warning if a switch on an enum-valued expression lacks a default case and lacks cases for one or more of the enum type's constants. (Such a statement will silently do nothing if the expression evaluates to one of the missing constants.) Here's the [link.|http://java.sun.com/docs/books/jls/third_edition/html/statements.html]