Java IO exception stream closed

Question

This is the code I currently have:

public class FileStatus extends Status{

FileWriter writer;

public FileStatus(){

    try {

        writer = new FileWriter("status.txt",true);

    } catch (IOException e) {

        e.printStackTrace();

    }

}

public void writeToFile(){

    String file_text= pedStatusText + "     " + gatesStatus + "     " + DrawBridgeStatusText;

    try {

        writer.write(file_text);

        writer.flush();

        writer.close();

    } catch (IOException e) {

        // TODO Auto-generated catch block

        e.printStackTrace();

    }

}

}

My code works fine, but when it calls the writeToFile method for the second time I get the following:

   

java.io.IOException: Stream closed

Even though the file is written to the second time, it always throws the above error whenever I give a call to writeToFile(). Can anyone tell me how to resolve this error?

Answer 1

You should not call writer.close(), after you are writing to it since the stream is closed. You can implement the below code to move close out of the write method:

public void writeToFile(){

    String file_text= pedStatusText + "     " + gatesStatus + "     " + DrawBridgeStatusText;

    try {

        writer.write(file_text);

        writer.flush();

    } catch (IOException e) {

        // TODO Auto-generated catch block

        e.printStackTrace();

    }

}

Also you can add method cleanUp to close the stream:

public void cleanUp() {

     writer.close();

}

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