Проверка типа символов

;\r\nvar isInList = symbolList.contains(\"\" + c2);\r\n//isInList is true\r\n\r\nSystem.out.println(\"isLetter is \" + isLetter);\r\nSystem.out.println(\"isNumber is \" + isNumber);\r\nSystem.out.println(\"isInList is \" + isInList);"}

;
var isInList = symbolList.contains("" + c2);
//isInList is true

System.out.println("isLetter is " + isLetter);
System.out.println("isNumber is " + isNumber);
System.out.println("isInList is " + isInList);