What are the functions of the Character class in Java?

The Character class in Java offers functions for handling and manipulating character data. Here are some commonly used functionalities of the Character class:

1. Check if a character is a letter: The Character class provides the isLetter(char ch) method to determine if a character is a letter.
2. Check if a character is a digit: The Character class provides the isDigit(char ch) method, which is used to determine if a character is a digit.
3. To determine if a character is a whitespace character, the Character class provides the isWhitespace(char ch) method, which is used to check if a character is a whitespace character such as a space or tab.
4. Determine whether a character is an uppercase letter or a lowercase letter: The Character class provides the isUpperCase(char ch) and isLowerCase(char ch) methods, which are used to check if a character is an uppercase or lowercase letter.
5. The Character class provides the toUpperCase(char ch) and toLowerCase(char ch) methods for converting a character to uppercase or lowercase letters.
6. To obtain the Unicode code point of a character, the Character class provides the getCodePoint(char ch) method.
7. Check if a character is printable: The Character class offers the isPrintable(char ch) method to determine if a character is printable.
8. The type of a character can be determined using the getType(char ch) method provided by the Character class, which can identify whether the character is a letter, number, space, etc.
9. Character class has a method called isValidJavaIdentifier(char ch) that checks if a character is a valid Java identifier.

These are some commonly used functions of the Character class, and there are also other methods available for comparing, converting, and handling characters.