下面是txt文件
<question>
Analyze the following code:
public class Test {
private int t;
public static void main(String[] args) {
int x;
System.out.println(t);
}
}
<choice>
The variable t is not initialized and therefore causes errors
The variable t is private and therefore cannot be accessed in the main method
t is non-static and it cannot be referenced in a static context in the main method.
The variable x is not initialized and therefore causes errors.
The program compiles and runs fine.
<answer>
3
<question>
What is Java (in regard to Computer Science) ?
<choice>
A type of coffee
An object-oriented programming language
An interactive website
none of above
<answer>
2
<question>
Java runs on _______.
<choice>
Windows
Unix/Linux
Mac
All of the Above
<answer>
4
<question>
What is the main function of any variable ?
<choice>
To add numbers together
To keep track of data in the memory of the computer
To print words on the screen
To write Java
<answer>
2
<question>
The following statements make length be what number ?
int length;
length = 4;
length ++;
<choice>
4
5
6
8
<answer>
5
下面是代码
import java.io.*;
import java.util.*;
class QuestionLibrary{
private String Question;
private String Answer;
public QuestionLibrary(String _Question,String _Answer){
Question=_Question;
Answer=_Answer;
}
public QuestionLibrary(){};
}
public class read{
private List<QuestionLibrary> list = new ArrayList<QuestionLibrary>();
public void readfile(){
try{
File f=new File("Mchoice.txt");
BufferedReader bufRead=new BufferedReader(new InputStreamReader(new FileInputStream(f)));
String str;
while((str = bufRead.readLine())!= null){
String[] data=new String[100];
data=str.split("<answer>");
QuestionLibrary q = new QuestionLibrary(data[0].trim(),data[1].trim());
list.add(q);
System.out.println(data[1]);
}
}
catch (IOException e) {
System.out.println("Error reading file");
System.exit(1);
}
}
public static void main(String args[])
{ read X=new read();
X.readfile();
}
}
这是代码~~我怎么区分answer 和 question并存到class里
------解决方案--------------------
老实说，楼猪，你是不是马甲来的，跟另一个问题出奇的像，
http://topic.csdn.net/u/20110901/21/d2bf57a7-5eb4-476c-8523-584064b9a618.html?seed=31379635&r=75294767#r_75294767
- Java code
import java.io.*;import java.util.*;import java.util.List;class QuestionLibrary { private static int counter = 1; public final int id = counter++;// 给每一道question一个唯一的id private String question; private List<String> choices;// 每一个问题里都对应有若干个choice，那么把这些choice也存起来吧; private String answer; QuestionLibrary(String question, List<String> choices, String answer) { super(); this.question = question; this.choices = choices; this.answer = answer; } public String getQuestion() {// 你是用private来修饰question的，那么别的类就只能通过此方法来获取question了 return question; } public void setQuestion(String question) { this.question = question; } public List<String> getChoices() { return choices; } public void setChoices(List<String> choices) { this.choices = choices; } public String getAnswer() { return answer; } public void setAnswer(String answer) { this.answer = answer; }}public class ReadTxtToClass { List<QuestionLibrary> list = new ArrayList<QuestionLibrary>();// 保存所有question BufferedReader br = null; String line = null; StringBuffer question = null; List<String> choice = null; StringBuffer answer = null; public void fileToLibrary() throws Exception { list = new ArrayList<QuestionLibrary>(); br = new BufferedReader(new FileReader("test.txt")); question = new StringBuffer(); choice = new ArrayList<String>(); answer = new StringBuffer(); while ((line = br.readLine()) != null) {//消除文件开头的空行，直到<question> while(line.trim().equals("<question>")) {//将文件指针移到题目开头,//从<question>下一行开始处理，在下一个<question>或者文件尾结束处理 while (!(line = br.readLine().trim()).equals("<choice>")) //读取<choice>前的信息 question.append(line + "\n"); while (!(line = br.readLine().trim()).equals("<answer>")) //读取<answer>前的信息 choice.add(new String(line)); //每一个替有多个选项，每个question的每一个选项之间必须有明显的界限，但文件中没有给出（某些选项是以“.”号结束，但有些没有） //这里我假定每一行就是一个选项 while ((line = br.readLine()) != null) { if (!(line = line.trim()).equals("<question>"))// 如果还未到文件尾，读取下一个<question>前的信息 answer.append(line + "\n"); else break; } QuestionLibrary q = new QuestionLibrary(new String(question), new ArrayList(choice), new String(answer)); list.add(q); question.delete(0, question.length());//把里面的内容清空，以便存放下一道题 choice.removeAll(choice); answer.delete(0, answer.length()); if(line == null) break;//如果已经到了文件尾 } if(line == null) break;//如果已经到了文件尾 } } public static void main(String args[]) throws Exception { ReadTxtToClass rttc = new ReadTxtToClass(); rttc.fileToLibrary();//将文件信息转换为试题库 List list = rttc.list;//准备查看表中的信息 for(int i=0; i< list.size(); i++) { System.out.println("---------问题" + (i+1)+"\n" +((QuestionLibrary)list.get(i)).getQuestion()); System.out.println("---------问题" + (i+1)+"的选项"); for(String temp : ((QuestionLibrary)list.get(i)).getChoices()) System.out.println(temp); System.out.println("---------问题" + (i+1)+"的答案\n" +((QuestionLibrary)list.get(i)).getAnswer()); } }}/*output: ---------问题1Analyze the following code:public class Test {private int t;public static void main(String[] args) {int x;System.out.println(t);}}---------问题1的选项The variable t is not initialized and therefore causes errorsThe variable t is private and therefore cannot be accessed in the main methodt is non-static and it cannot be referenced in a static context in the main method.The variable x is not initialized and therefore causes errors.The program compiles and runs fine.---------问题1的答案3---------问题2What is Java (in regard to Computer Science) ?---------问题2的选项A type of coffeeAn object-oriented programming languageAn interactive websitenone of above---------问题2的答案2---------问题3Java runs on _______.---------问题3的选项WindowsUnix/LinuxMacAll of the Above---------问题3的答案4---------问题4What is the main function of any variable ?---------问题4的选项To add numbers togetherTo keep track of data in the memory of the computerTo print words on the screenTo write Java---------问题4的答案2---------问题5The following statements make length be what number ?int length;length = 4;length ++;---------问题5的选项4568---------问题5的答案5 */