[Solved] string.toUpperCase() and string.toLowercase() not printing [closed]

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I ran your code just as it is, and it printed it both in uppercase and lowercase, but I noticed you had a comment that said //Display the first character, and following it, keyboard.next(). This was the only incorrect part. To print the first letter of a string(in this case the string is city), use this line: System.out.println(city.substring(0,1).toUpperCase()); below is an example of the output:

Enter favorite city: dallas.          
String Length :6
DALLAS
dallas
D

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solved string.toUpperCase() and string.toLowercase() not printing [closed]