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Thread: Problem in FileInputStream

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    Default Problem in FileInputStream

    hello all! I am very beginner in java and learning File handling. I got some error in the program given below:
    import java.io.*;
    public class FileOutputStream {

    public static void main(String[] args) throws IOException {

    //set up file and stream
    File outFile = new File("sample1.data");
    FileOutputStream outStream = FileOutputStream(outFile); //Error:The constructor FileInputStream(File) is undefined
    //data to output
    byte[]byteArray = {10, 20, 30, 40, 50, 60, 70, 80};
    //write data to the stream
    outStream.write(byteArray); //Error: Create a Method read
    //output done, so close the stream
    outStream.close(); /Er/ror: Create a Method close

    }

    }

    This program is taken from some book but still error. can anyone explain the error??

    Thanks
    Ranjeet


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    Default Re: Problem in FileInputStream

    Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

    Please post your code correctly using code or highlight tags per the above link.

    The primary problem is that you've named your class, FileOutputStream, the same as an existing SE class. Give your program another name.

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    Default Re: Problem in FileInputStream

    FileOutputStream outStream = FileOutputStream(outFile); //Error:The constructor FileInputStream(File) is undefined
    I don't understand the error message. It refers to Input but the code has Output

    Can you copy the exact and full text of the compiler's error message and paste it here.

    Please edit your post and wrap your code with code tags:
    [code=java]
    YOUR CODE GOES HERE
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Problem in FileInputStream

    import java.io.*;
    public class FileOutputStream {
     
    public static void main(String[] args) throws IOException {
     
            //set up file and stream
             File outFile = new File("sample1.data");
             FileOutputStream outStream = FileOutputStream(outFile); //Error:The constructor FileInputStream(File) is undefined
             //data to output
              byte[]byteArray = {10, 20, 30, 40, 50, 60, 70, 80};
             //write data to the stream
             outStream.write(byteArray); //Error: Create a Method read
             //output done, so close the stream
              outStream.close();    //Error: Create a Method close
     
          }
     
    }


    --- Update ---

    sorry for not writing code in proper way...actually i m using this forum first time.....

    --- Update ---

    I changed the name of class still setting one error in
    FileOutputStream outStream =  FileOutputStream(outFile);

    error:The method FileOutputStream(File) is undefined for the type FileOutStreamTest

    Quote Originally Posted by ranjeet270 View Post
    import java.io.*;
    public class FileOutputStream {
     
    public static void main(String[] args) throws IOException {
     
            //set up file and stream
             File outFile = new File("sample1.data");
             FileOutputStream outStream = FileOutputStream(outFile); //Error:The constructor FileInputStream(File) is undefined
             //data to output
              byte[]byteArray = {10, 20, 30, 40, 50, 60, 70, 80};
             //write data to the stream
             outStream.write(byteArray); //Error: Create a Method read
             //output done, so close the stream
              outStream.close();    //Error: Create a Method close
     
          }
     
    }


    --- Update ---

    sorry for not writing code in proper way...actually i m using this forum first time.....
    Quote Originally Posted by GregBrannon View Post
    Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

    Please post your code correctly using code or highlight tags per the above link.

    The primary problem is that you've named your class, FileOutputStream, the same as an existing SE class. Give your program another name.

  5. #5
    Super Moderator Norm's Avatar
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    Default Re: Problem in FileInputStream

    Please post the current code and the full text of the error message.
    Error messages should show the line number where the error happened.

    One error I see is the keyword new is missing where the code is trying to create an instance of a class.
    = FileOutputStream(outFile);
    That syntax looks like a call to a method named: FileOutputStream()
    error:The method FileOutputStream(File)
    If you don't understand my answer, don't ignore it, ask a question.

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