Output/Input Streams Cannot Resolve Symbol..

Question

It is missing something, how do I declare the below 2 variables?
     //Get streams to send and receive data
     private void getSockStreams() throws IOException {
          //Set up output streams for objects
          output = new ObjectOutputStream(connection.getOutputStream());
          output.flush(); //Flush output buffer to send header information.
          //Set up input stream for objects.
          input = new ObjectInputStream(connection.getInputStream());
          displayMessage("Got I/O Streams");
     }Error:
C:\Documents and Settings\Moon\My Documents\Navi Projects\School\OOPJ Project\Prototype\GPS-Lite v2 Alpha Debugger\appinterface.java:74: cannot resolve symbol
symbol  : variable output
location: class appinterface
                output = new ObjectOutputStream(connection.getOutputStream());
                ^
C:\Documents and Settings\Moon\My Documents\Navi Projects\School\OOPJ Project\Prototype\GPS-Lite v2 Alpha Debugger\appinterface.java:75: cannot resolve symbol
symbol  : variable output
location: class appinterface
                output.flush(); //Flush output buffer to send header information.
                ^
C:\Documents and Settings\Moon\My Documents\Navi Projects\School\OOPJ Project\Prototype\GPS-Lite v2 Alpha Debugger\appinterface.java:78: cannot resolve symbol
symbol  : variable input
location: class appinterface
                input = new ObjectInputStream(connection.getInputStream());
                ^
3 errors
Process completed.

Answer 1

Same way you declare any variables in Java:ObjectOutputSream output;
output = ....
OR
ObjectOutputStream output = ...