stockapplication.java

ssd3部分quiz、exercise、exam的参考答案

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

/* DOCUMENT THIS CLASS */
public class StockApplication  {

	/* Standard input stream */
	private static BufferedReader  stdIn =
		new  BufferedReader(new  InputStreamReader(System.in));

	/* Standard output stream */
	private static PrintWriter  stdOut =
		new  PrintWriter(System.out, true);

	/* Standard error stream */
	private static PrintWriter  stdErr =
		new  PrintWriter(System.err, true);

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

		Stock stock = readStock();

		stdOut.println(stock.getXML());
	}

	/* DOCUMENT THIS PUBLIC METHOD */
	public static Stock readStock() throws IOException {

		/* Delimiter of stock data */
		final String DELIM = "_";

		String symbol = "";
		String name = "";
		double highestPrice = 0.0;
		double lowestPrice = 0.0;
		double lastPrice = 0.0;

		/* PLACE YOUR CODE HERE */
		do {
			String temp = stdIn.readLine();
			StringTokenizer tnz = new StringTokenizer(temp, DELIM);
			int justice = tnz.countTokens();
			if(justice != 5) {
				stdErr.println("Incomplete data");
				continue;
			}
			else {
				try {
					symbol = tnz.nextToken();
					name = tnz.nextToken();
					highestPrice = Double.parseDouble(tnz.nextToken());
					lowestPrice = Double.parseDouble(tnz.nextToken());
					lastPrice = Double.parseDouble(tnz.nextToken());
					break;
				}
				catch (Exception e) {
					stdErr.println("Incorrect data");
				}
			}
		}while(true);

		return new Stock(symbol, name, highestPrice, lowestPrice, lastPrice);
	}
}