// FileText.java
// A solution to CS 10 assignment 5, part 1a, Fall 2008
// cmc, updated 11/18/08

import java.util.Scanner;
import java.io.FileReader;
import java.io.IOException;

/**
   Implements TextGetter to get text from a file.
*/
public class FileText implements TextGetter {
   
    private String filename;

    /**
       Constructs a FileText object associated with the name of a file,
       but does not open the file. That task is left to the getText()
       method when it is invoked by a client.
       @param aFileName the name of the file.
    */
    public FileText(String aFileName) {
        filename = aFileName;
    }
   
    /**
       Gets the file's text. Attempts to open and read the associated
       file, store all text (including newline characters) in a String,
       and return a reference to this String.
       @return all text in the file as a single String.
       @throws IOException but always closes an opened file.
    */
    public String getText() throws IOException {
        StringBuilder text = new StringBuilder();

        FileReader reader = null;
        try {
            reader = new FileReader(filename);
            while (reader.ready())
                text.append( (char) reader.read() );
        }
        finally {
            if (reader != null)
                reader.close();
        }
      
        return text.toString();
    }   
}