Lendo arquivos txt (JAVA)

import java.io.*; 
public class Estudos{   public static void main(String[] args){
 try {        
BufferedReader bf = new BufferedReader(new FileReader("teste.txt"));
String teste;        
while((teste = bf.readLine()) != null){ 
         System.out.println(teste);        
}        
in.close();    
}      catch (IOException e){
       }
 System.exit(0);   }
}