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Thread: Can someone help please?

  1. #1
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    Default Can someone help please?

    Hey everybody,

    I need some help with my code. I have made a class with two methods, both with the intent to create a log file and write in it. Now, I want to call both those methods on another class file. The methods are "public static void write(String s) throws IOException" and "public static void writes(String f, String s) throws IOException". How can I call them from another class file?

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    Default Re: Can someone help please?

    You call those 2 static methods directly from another class like this

    try{
         classname.write(s);
         classname.writes(s,s);
    }catch(IOException e){
         //here is how your handle the exception
    }
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  3. #3
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    Default Re: Can someone help please?

    I don't really understand the "//here is how your handle the exception"...
    These are my methods :

        public static void write(String s) throws IOException
        {
            String defaultLogFile = "log.txt";
            writes(defaultLogFile, s);
        }
     
        public static void writes(String f, String s) throws IOException
        {
            TimeZone tz = TimeZone.getTimeZone("GMT");
            Date now = new Date();
            DateFormat df = new SimpleDateFormat ("yyyy.mm.dd hh:mm:ss ");
            df.setTimeZone(tz);
            String currentTime = df.format(now);
     
            FileWriter aWriter = new FileWriter(f, true);
            aWriter.write(currentTime + " " + s + "\n");
            aWriter.flush();
            aWriter.close();
        }

    I looked up how to log in java and something like this came up...

  4. #4
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    Default Re: Can someone help please?

    Also, when I tried implementing what you said, this came up : "cannot find symbol", refering to the s variable on the write method and both on the writes.

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    Default Re: Can someone help please?

    Also, when I tried implementing what you said, this came up : "cannot find symbol", refering to the s variable on the write method and both on the writes.
    You have to pass the string variable to the methods, whatever the name of the variable is - the error is there because it is more than likely that s is not defined in the context of your code. Provide more context, and you might get a more specific answer.

    I don't really understand the "//here is how your handle the exception"...
    See Lesson: Exceptions (The Java™ Tutorials > Essential Classes)

    I looked up how to log in java and something like this came up...
    This is a very simple and rudimentary logging practice. I presume you are a novice, but will provide this here for what it is worth: for more advanced and flexible alternatives, see http://www.javaprogrammingforums.com...6-logging.html