public void clear(){
  mVariableReferences.clear();
  mProcedureManager.clear();
  mVariableNameManager.clearUsedNames();
  mConnectionManager.clear();
}

public void clear ( ) { mVariableReferences . clear ( ) ; mProcedureManager . clear ( ) ; mVariableNameManager . clearUsedNames ( ) ; mConnectionManager . clear ( ) ; }
clear state about variables , procedures , and connections . these changes will be reflected in the externally owned connection and procedure manager .
