21. Try with resources example

• A method that catches two types of exceptions and automatically closes the specified resource

  
      public static String readFirstLine( String path )
      {
          try
              (
                  RandomAccessFile in = new RandomAccessFile( path, "r" )
              )
          {
              String line = in.readLine();  // may throw 
                                            // IOException
              return line;
          }
          catch ( FileNotFoundException ex )
          {
              System.out.println( "File not found" );
              return null;
          }
          catch ( IOException ex )
          {
              System.out.println( "I/O error occurred" );
              return null;
          }
      }