题解 | #判断字母#
判断字母
http://www.nowcoder.com/practice/44d2d63103664913bc243d3836b4f341
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
while(scan.hasNextLine()){//读一行输出一行
String str = scan.nextLine();
char ch = str.charAt(0);//先将str转化为字符
boolean bool = Character.isLetter(ch);//之后判断是否为字母
String result = bool ? "YES" : "NO";//最后将true和false转为YES和NO
System.out.println(result);
}
}
}