缩写首字母
缩写
http://www.nowcoder.com/questionTerminal/45083499b8c5404fb1db44c6ea4f170a
用split按空格分开，输出各串的0下标字符即可：
import java.util.*;
public class Main {
public static void main(String[] args) throws Exception{
Scanner sc = new Scanner(System.in);
String[] s = sc.nextLine().split(" ");
for(String i : s) System.out.print(i.charAt(0));
}
}