ILOG CPLEX 11.0 Getting Started > Tutorials > Interactive Optimizer Tutorial > Displaying a Problem > Displaying the Objective Function

When you want to display only the objective function, you must enter its name (obj by default) or an index number of 0.

display problem constraints
Display which constraint name(s): 0
Maximize
  obj: x1 + 2 x2 + 3 x3