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Interface that represents a procedure object: a procedure that takes two arguments and does not return a value.
| Method Summary | |
|  boolean | apply(int first,
      double second)Applies a procedure to two arguments. | 
| Method Detail | 
public boolean apply(int first,
                     double second)
Example: forEach() methods often use procedure objects. To signal to a forEach() method whether iteration should continue normally or terminate (because for example a matching element has been found), a procedure can return false to indicate termination and true to indicate continuation.
first - first argument passed to the procedure.second - second argument passed to the procedure.
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