check if char is number java
Character.isDigit(str.charAt(i));check if char is number java
Character.isDigit(str.charAt(i));check if char is letter or digit
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
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How to check if a char is a letterJavascript By Ill Ibis on Dec 16 2021 ThankComment
function isCharacterALetter(char) {
return (/[a-zA-Z]/).test(char)
}Copyright © 2021 Codeinu
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