Calling Method from other Class

[sunshinehm18]

Good afternoon! I am trying to call a method from other class and it wont work. Do i have it written wrong or in the wrong place?

public static void main(String[] args) 
                            throws FileNotFoundException, IOException     
    {  
            
        try
            {
            InputStream Filename=new FileInputStream("input.txt");
            BufferedReader br=new BufferedReader(new InputStreamReader(Filename));

            for (String line = br.readLine(); line != null; line = br.readLine()) 
            {
                System.out.println(line);
                           }
           
            StringConversion.(lowerCaseString);
            
            br.close();
            }
                catch(IOException e)
                {
                    System.err.println("Error: Target File Cannot Be Read");
                }
        
        
    }
      
        class StringConversion
        {
            public String lowerCaseString = "";

                public String lowerCaseString(String trimmed)
                    {
                    lowerCaseString = trimmed.toLowerCase();
                    return this.lowerCaseString;
                    }
            }
}

any help would be appreciated. I have looked at tutorials and still cant figure out what i am doing wrong.

[Norm]

trying to call a method from other class

Not sure what class and method you are talking about.
Can you give some details?


Here is an example from your code of calling a method that is in another class:

           BufferedReader br=new BufferedReader(new InputStreamReader(Filename)); // define an instance

            for (String line = br.readLine(); line != null; line = br.readLine())   // call readLine method from this class

it wont work.

If there are error messages, copy the full text and paste it here.

[sunshinehm18]

I got it!!! Thank you for looking though! I was fighting it and figured out how to do it. Now on to bubble sort and selection sort! OH the joy

[SeymourJones]

Glad you got it worked out. While it's technically fine in Java to have an instance variable with the same name as a method, I kind of like to avoid doing it. In your code above, you have lowerCaseString as a variable and a method. I guess for me having StringConversion.lowerCaseString and StringConversion.lowerCaseString() may cause some confusion, but I guess to each his own.

[Norm]

Good point.
variable names should be nouns
method name should be verbs