// app3_13,由鍵盤輸入字符串
import java.io.*;   // 載入java.io類庫里的所有類
public class app3_13
{
   public static void main(String args[]) throws IOException
   {
      BufferedReader buf;
      String str;
      
      buf=new BufferedReader(new InputStreamReader(System.in));
      
      System.out.print("Input a string:");
      str=buf.readLine();  // 將輸入的文字指定給字符串變量str存放