Which of the following is not a correct method in the Character class?
a. isLetterOrDigit(char)
b. isLetter(char)
c. isDigit()
d. toLowerCase(char)
e. toUpperCase()
c. isDigit()
e. toUpperCase()
isDigit() should be isDigit(char) and toUpperCase() should be toUpperCase(char)
Computer Science & Information Technology
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