To check if a char is a letter in Java, you can use the isLetter method of the Character class.
Here's an example of how you might do this:
refer to:lautturi.comchar ch = 'a';
if (Character.isLetter(ch)) {
System.out.println("The character is a letter.");
} else {
System.out.println("The character is not a letter.");
}
In this example, the isLetter method is used to check if the char variable ch is a letter. If it is, the message "The character is a letter." is printed to the console; otherwise, the message "The character is not a letter." is printed.