Function to read file passing it by parameter

Question

Hi guys I'm having difficulty with a method to read file.I have not found anything in the documentation.

I'm trying to return an array of char.

public class ReadFile {

    public static void main(String[] args) throws IOException {
        
        File  f = new File("word.txt");
     
        char [] word=ReadWordFile(f);
        
        System.out.println(word);

    }
    
    
    //1.Read words  from File and return as arr of char
    public static  char [] ReadWordFile(File f) throws IOException {
         BufferedReader br
         = new BufferedReader(new FileReader(f));
         
         char [] aux = null;

     // Declaring a string variable
     String st;
     // Condition holds true till
     // there is character in a string
     while ((st = br.readLine()) != null)

        st+=aux;

     return aux;    
    }

Answer 1

Nothing changes aux in your code:

char [] aux = null;
// Declaring a string variable
String st;
// Condition holds true till
// there is character in a string
while ((st = br.readLine()) != null)
  st+=aux;
return aux;

Concatenate all read strings and then get the char array from:

String st = "", read = null;
// Condition holds true till
// there is character in a string
while ((read = br.readLine()) != null)
  st += read;
return st.toCharArray();