import java.util.*; |
02 |
import java.io.*; |
03 |
public class Main
{ |
04 |
public static void main(String
args[]){ |
05 |
|
06 |
Scanner
sc = new Scanner(System.in); |
07 |
String
s = sc.next(); |
08 |
char c
= s.charAt( 0 ); |
09 |
System.out.println(c); |
10 |
} |
11 |
} |
輸入一串字符,然後取第一個字符,也就是charAt(0);取第n個字符則用char c = s.charAt(n);,取值的範圍是0到length-1。