P61.F90

Swap two elements

!
! =====> Program - P61.F90
!
!
!
      PRINT *, 'This is Program >> P61  - Swap 2 elements'
!
!     Tell program where data for  READ *  is coming from
      OPEN(UNIT=5, FILE='P61.DAT')      ! UNIT=5 is the default input
!
      READ *,I,J
      PRINT *,I,J
!     EXCHANGE I AND J
      K=I
      I=J
      J=K
      PRINT *,I,J
      STOP
      END

DATA:
39 47

OUTPUT:
Program entered
 This is Program >> P61  - Swap 2 elements
 39 47
 47 39
Fortran-90 STOP

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Last modified: 11/07/95