JAVA

how to check if a char is a letter java

Character.isDigit(string.charAt(index)) //(JavaDoc) will return true if it's a digit
Character.isLetter(string.charAt(index)) //(JavaDoc) will return true if it's a letter

How to check if a char is a letter

function isCharacterALetter(char) {
  return (/[a-zA-Z]/).test(char)
}