How to use the String class methods to transfer digital text?
Input from the keyboard, for example, 123, the output is a two or three

CodePudding user response:

You can use the switch

CodePudding user response:

String must not this way, when you use the API is best can guess this API can provide boundary, Java language written by a foreigner, how would it be possible to give you add this functionality in the JDK, to the home in Chinese, the arabs how to think, Roman numerals is also want to add, Japan South Korea what it is supposed

CodePudding user response:

Write a conversion tool of class,