icarnegieinfoapplication.java

ssd3部分quiz、exercise、exam的参考答案

import  java.io.*;
import  java.util.*;

/* DOCUMENT THIS CLASS */
public class ICarnegieInfoApplication  {

	private static BufferedReader  stdIn =
		new  BufferedReader(new  InputStreamReader(System.in));
	private static PrintWriter  stdOut =
		new  PrintWriter(System.out, true);
	private static PrintWriter  stdErr =
		new  PrintWriter(System.err, true);

	/* DOCUMENT THIS PUBLIC METHOD */
	public static void main(String[] args) throws IOException  {

		ICarnegieInfo companyInfo = ICarnegieInfo.getInstance();

		int  choice = getChoice();

		while (choice != 0)  {

			if (choice == 1)  {
				stdOut.println(companyInfo.getName());
			} else if (choice == 2)  {
				stdOut.println(companyInfo.getAddress());
			} else if (choice == 3)  {
				stdOut.println(companyInfo.getTelephone());
			} else if (choice == 4)  {
				stdOut.println(companyInfo.getEmail());
			} else if (choice == 5)  {
				stdOut.println(companyInfo.getUrl());
			}

			choice = getChoice();
		}
	}

	private  static int  getChoice() throws IOException  {

		/* PLACE YOUR CODE HERE */
		do  {
			stdOut.println("[0]  Quit");
			stdOut.println("[1]  Display name");
			stdOut.println("[2]  Display address");
			stdOut.println("[3]  Display telephone");
			stdOut.println("[4]  Display email");
			stdOut.println("[5]  Display URL");
            try  {
                stdErr.print("Enter an integer >  ");
                stdErr.flush();
                
                int temp;
                temp = Integer.parseInt(stdIn.readLine());
                if(temp < 0 || temp > 5)
                	stdOut.println("Invilid Choice: " + temp);
                return temp;

            } catch (NumberFormatException  nfe)  {
                stdErr.println(nfe);
            }
    }  while (true);
	}
}