primitive
// 선언 Character c1 = 's'; Character c2 = 'k'; // 비교 boolean b = c1 == c2; // char to String String str = char1 + ""; // char 문자인지 숫자인지 확인 System.out.println(Character.isLetter(c1)); System.out.println(Character.isDIgit(c1));
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