Character Class in Java

Character is a class of java.lang package. Character  is a simple wrapper class and constructor of this class is Character (char ch), where the char ch is wrapped by the Character  object. Character class has several static methods which are used for several purposes

Return Type	Prototype	Use
boolean	static boolean isDigit (char ch)	Returns true if the argument character is digit otherwise false
boolean	static boolean isLetter (char ch)	Returns true if the argument character is an alphabet  otherwise false
boolean	static boolean isLetterOrDigit (char ch)	Returns true if the argument character is digit or alphabet otherwise false
boolean	static boolean isLowerCase (char ch)	Returns true if the argument character is a lowercase letter otherwise false
boolean	static boolean isUpperCase (char ch)	Returns true if the argument character is a uppercase letter otherwise false
boolean	static boolean isWhitespace (char ch)	Returns true if the argument character is a white space otherwise false
char	static char toLowerCase (char ch)	Returns lower case equivalent of the argument  character if it is in upper case otherwise returns the same value
char	static char toUpperCase (char ch)	Returns upper case equivalent of the argument  character if it is in lower case otherwise returns the same value

Related Post: Programs on Character Class