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)
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Fill in the blank(s) with the appropriate word(s).
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