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POJava exceptions at different functions
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  1. POJava exceptions at different functions
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    copied!<p>Hello there/ I am new to java and I am trying to make a program that parses through a txt file and scan its content line by line. Well,in the begging I designed the program without any object or classes apart the main and it worked fine. Then I wanted to design a new class with the content from the main function but it fails to compile and I get many exeption errors. Here is the code:</p> <pre><code>import java.io.BufferedReader; import java.io.DataInputStream; import java.io.File; import java.io.FileInputStream; import java.io.InputStreamReader; public class Reader { Reader(String file) throws Exception{ Entry test= new Entry(); File f= new File("C:/Users/Mario/Documents/Visual Studio 2013/Projects/Entry/Entry/a.txt"); System.out.print(f.exists()); // true is printed on the screen when this was at main FileInputStream fstream = new FileInputStream("C:/Users/Mario/Documents/Visual Studio 2013/Projects/Entry/Entry/a.txt"); BufferedReader br = new BufferedReader(new InputStreamReader(fstream)); String strLine; String tag=""; String date=""; int id; String title="",description="",reference=""; while ((strLine = br.readLine()) != null){ System.out.print(strLine+ "\n"); if(strLine.length()&gt;2 &amp;&amp; strLine.substring(0,3).equals("I1:") ){ System.out.print("id detected\n"); id=-1; strLine = br.readLine(); id=Integer.parseInt(strLine); //System.out.print("ID:"+id+"\n"); test.set_id(id); continue; } if(strLine.length()&gt;2 &amp;&amp; strLine.substring(0,3).equals("T1:") ){ System.out.print("title detected\n"); title=""; strLine = br.readLine(); title=strLine; //System.out.print("Title:"+title+"\n"); test.set_title(title); continue; } if(strLine.length()&gt;2 &amp;&amp; strLine.substring(0,3).equals("D1:") ){ System.out.print("description detected\n"); StringBuilder descrp=new StringBuilder(); description=""; while(true){ strLine = br.readLine(); if(strLine.equals("D2:")) break; else descrp.append(strLine); continue; } description=descrp.toString(); //System.out.print(description); test.set_description(description); } if(strLine.length()&gt;2 &amp;&amp; strLine.substring(0,3).equals("D3:") ){ System.out.print("DATE"+date); strLine = br.readLine(); date=strLine; test.set_date(date); } if(strLine.length()&gt;2 &amp;&amp; strLine.substring(0,3).equals("R1:") ){ strLine = br.readLine(); reference=strLine; System.out.print("Reference"+reference); test.set_reference(reference); } br.close(); } } } </code></pre> <p>and these are the errors I receive:</p> <pre><code> true Exception in thread "main" java.io.IOException: Stream closed at java.io.BufferedReader.ensureOpen(Unknown Source) at java.io.BufferedReader.readLine(Unknown Source) at java.io.BufferedReader.readLine(Unknown Source) at Reader.&lt;init&gt;(Reader.java:28) at FileReader.main(FileReader.java:14) </code></pre> <p>What confuses me is the fact that I received these errors when I changed the file the code was. Before I got no errors at compilation and the program worked fine. The new file (Reader.java) is at the same directory like the file the main function is. I work at the Eclipse IDE. Thx in advnace</p> <p>Edit: I added the throw exception at the function and thus changed the console output</p>
 

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