questionreader.java

关于网上考试系统的

package com.tarena.exam.util;

import java.io.BufferedReader;
import java.io.IOException;

import com.tarena.exam.model.Question;

public class QuestionReader {
	private BufferedReader br;
	public QuestionReader(BufferedReader br){
		this.br=br;
	}
	
	public Question readQuestion() throws IOException{
		String[] str=new String[5];
		str[0]=br.readLine();
		if(str[0]==null){
			return null;
		}
		for(int i=1;i<str.length;i++){
			String s=br.readLine();
			if(s==null){
				throw new IOException("文件格式不正确！");
			}
			str[i]=s;
		}
		return new Question(str);
	}

}