Java character isletter and isalphabetic

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The Java Character isLetter() method determines if the specified character is a letter.

A character is considered to be a letter if its general category type, the return value obtained by the Character.getType() method, is any of the following −

• UPPERCASE_LETTER

• LOWERCASE_LETTER

• TITLECASE_LETTER

• MODIFIER_LETTER

• OTHER_LETTER

Not all letters have case; many characters are letters but are neither uppercase nor lowercase nor titlecase.

Syntax

Following is the syntax for Java Character isLetter() method

public static boolean isLetter(char ch) (or) public static boolean isLetter(int codePoint)

Parameters

• ch − the character to be tested

• codePoint − the Unicode code point to be tested

Return Value

This method returns true if the character argument is a letter, otherwise false.

Checking If a char/codepoint is a letter Example

The following example shows the usage of Java Character isLetter(char ch) method.

In this example, we've created a char variable and int variables and assigned them some v

.isletter in java

isletter() method java