// QueueTest.java: test the queue
import java.io.*;
public class QueueTest {
   // in: reader for reading input data
   private static Reader in = 
         new InputStreamReader(System.in);

   private static char getNextChar() {
      char ch = ' ';
      try {
         ch = (char)in.read();
      }
      catch (Exception exception) {
         System.err.println("Read Error");
         ch = ' ';
      }
      return ch;
   }

   public static void main(String[] args) {
      Queue queue = new Queue(4); // 10 chars
      char ch;
      while ((ch = getNextChar()) != 'q') {
         switch (ch) {
         case 'i':
            ch = getNextChar();
            queue.insert(ch);
            System.out.println(ch + " inserted");
            break;
         case 'd':
            System.out.println(queue.delete() + 
               " deleted");
            break;
         case 'p':
            queue.printq();
            break;
         default: System.out.println("Input error");
         }
         while ((ch = getNextChar()) != '\n')
            ;
      }
   }
}