What's the difference between File and FileLoader in Java? -

so have following code should read text file (this main class):

import gui.menuwindow; import java.io.ioexception; import javax.swing.joptionpane;  public class assessor {      public static void main(string args[]) throws ioexception {          fileloader file = new fileloader("example.txt");         try{             new menuwindow(file.loader());         } catch(exception exc) {             joptionpane.showmessagedialog(null, "error reading file");         }     } } 

then i'd have load text listbox using swing. thing i've found new code read text file:

import java.io.bufferedreader; import java.io.file; import java.io.filereader; import java.io.filenotfoundexception; import java.io.ioexception;  public class readtextfileexample {     public static void main(string[] args) {         file file = new file("test.txt");         stringbuffer contents = new stringbuffer();         bufferedreader reader = null;          try {             reader = new bufferedreader(new filereader(file));             string text = null;              // repeat until lines read             while ((text = reader.readline()) != null) {                 contents.append(text)                     .append(system.getproperty(                         "line.separator"));             }         } catch (filenotfoundexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         } {             try {                 if (reader != null) {                     reader.close();                 }             } catch (ioexception e) {                 e.printstacktrace();             }         }          // show file contents here         system.out.println(contents.tostring());     } } 

so i'd know difference between following 2 lines:

fileloader file = new fileloader("example.txt"); //first code  file file = new file("test.txt"); //second code 

and... what's stringbuffer , bufferedreader used to? thanks!

so i'd know difference between following 2 lines:

fileloader file = new fileloader("example.txt"); //first code  file file = new file("test.txt"); //second code 

the first creates java.io.fileloader andreas discusses. since javadoc says "the constructors of class assume default character encoding , default byte-buffer size appropriate", should never used.

the second creates java.io.file file path utility methods can used read directory trees, delete, create, , move files, etc., or can used fileinputstream , other classes access file contents.

and... what's stringbuffer , bufferedreader used to? thanks!

the stringbuffer used collect contents of file.

the bufferedreader used speed reading of file. instead of reading 1 character @ time, bufferedreader batches reads using internal buffer.