The Character class in Java is a wrapper class for the primitive data type char. It provides several useful methods for working with characters, such as checking if a character is a letter, digit, or whitespace, and converting characters to different cases.
This guide covers various methods available in the Character class. Each method is described in simple terms to help beginners understand how to use them. These methods enable you to perform operations like checking character properties, converting characters, and comparing characters.
For more detailed information, please refer to the official Java SE Documentation and additional resources on Java Wrapper Classes Tutorial.
Java Character Class Methods
The table below contains various methods of the Java Character class, each with a link to a detailed explanation, examples, and real-world uses. Click on the method names to learn more about how to use them effectively in your applications.
| Method | Description |
|---|---|
| isDigit() | Checks if the specified character is a digit. |
| isLetterOrDigit() | Checks if the specified character is a letter or a digit. |
| charValue() | Returns the value of this Character object. |
| codePointAt() | Returns the Unicode code point at the specified index. |
| compare() | Compares two characters numerically. |
| compareTo() | Compares this Character object to another Character. |
| forDigit() | Returns the character representation for a specified digit in a specified radix. |
| getName() | Returns the Unicode name of the specified character. |
| getNumericValue() | Returns the numeric value of the specified character. |
| isISOControl() | Checks if the specified character is an ISO control character. |
| isLowerCase() | Checks if the specified character is a lowercase letter. |
| isEmoji() | Checks if the specified character is an emoji. |
| isSpaceChar() | Checks if the specified character is a space character. |
| isTitleCase() | Checks if the specified character is a titlecase letter. |
| isUpperCase() | Checks if the specified character is an uppercase letter. |
| isWhitespace() | Checks if the specified character is whitespace. |
| toLowerCase() | Converts the specified character to lowercase. |
| toString() | Returns a string representation of the specified character. |
| valueOf() | Returns a Character instance representing the specified char value. |
| toTitleCase() | Converts the specified character to titlecase. |
| toUpperCase() | Converts the specified character to uppercase. |
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