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2. More Control over INPUT and OUTPUT (I / O). The input and output facilities of any programming language are extremely important, because it is through these features of the language that communication between the user and the program is carried out.F, therefore, provides facilities for input an
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1. 1 More Control over
INPUT and OUTPUT (I / O)
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17. 17 Exercise 2 program test1
integer ::a,b
real::c,d
print*,"please enter an integer values which is more than 6 digit"
read "(i4,t1,i4,t2,f4.1,t1,f4.2)",a,b,c,d
print "(i4,a,i5,a,i5,a,f6.2,a,f6.2,a,f8.3)",a,&
" minus",b," is",a-b,";",c," minus",d, " is",c-d
end program test1
18. 18 Exercise 3 program test2
character(len=6)::a,b,c
Print*,Please write your name
read "(a8,t1,a4,t1,a)",a,b,c
print "(a10,tr12,a4,tr30,a)",a,b,c
print "(a,t10,a,t52,a)",a,b,c
end program test2
19. 19 program five_digit_numbers
integer::i
integer,dimension(12)::arr
arr = (/12345, 23456, 34567, 45678,&
90123, 12340, 24680, 46802,&
13579, 35791, 57913, 69649/)
! output for single column format example
print*,"Single column of numbers"
do i = 1 , 12
print "(t8,i2,1x,i5)",i,arr(i)
end do
! output for four rows of three numbers
print "(2/t3,a/)","Four rows of three numbers "
print "(t8,i2,1x,3(i5,1x))", 1,arr(1:3)
print "(t8,i2,1x,3(i5,1x))", 2,arr(4:6)
print "(t8,i2,1x,3(i5,1x))", 3,arr(7:9)
print "(t8,i2,1x,3(i5,1x))", 4,arr(10:12)
! a single line of numbers
print "(2/t3,a/)", "A single line of numbers "
print "(t2,12(i5,1x))", arr
end program five_digit_numbers
20. 20 program multi_record_example
real :: a,b
a = 12.25
b = 23.50
write(unit=6,fmt="(t10,a,3/,a,f6.2,a,f6.2,a,///,f7.2,2/,a,f10.3)")&
"Multi-record example", &
" The sum of ",a," and",b," is", a+b, &
" Their product is",a*b
end program multi_record_example
21. 21 program railway_time_table
integer,parameter::n=5
integer::i
real,dimension(n)::arrival,departure
integer,dimension(n)::platform
character(len=10),dimension(n)::destination
arrival=(/9.23, 9.28, 10.41, 10.48, 11.15/)
departure=(/9.25, 9.32, 10.53, 10.53, 11.18/)
platform=(/2, 1, 3, 2, 1/)
destination=(/"Edinburgh"," London","Sheffield",&
"Newcastle"," London"/)
write(unit=6,fmt="(/a/2x,7('='),3x,9('='),3x,8('='),3x,11('='))") &
" Arrival Departure Platform Destination"
do i = 1 , n
write(unit=6,fmt="(3x,f5.2,6x,f5.2,8x,i1,8x,a10)") &
arrival(i),departure(i),platform(i),destination(i)
end do
end program railway_time_table
22. 22 program test2
character(len=6)::a,b,c
print *, "........................ STEPPER... Entering PROGRAM. Press Enter"
print*,"program test2"
read *
print *, "........................ STEPPER... Before READ. Press Enter"
print*,"read ""(a8,t1,a4,t1,a)"",a,b,c"
read *
read "(a8,t1,a4,t1,a)",a,b,c
print *, "........................ STEPPER... After READ. Press Enter"
read *
print "(a8,tr2,a4,tr3,a)",a,b,c
print*,"print ""(a8,tr2,a4,tr3,a)"",a,b,c"
print *, "........................ STEPPER... After PRINT. Press Enter"
read *
print "(a,t10,a,tr2,a)",a,b,c
print*,"print ""(a,t10,a,tr2,a)"",a,b,c"
print *, "........................ STEPPER... After PRINT. Press Enter"
read *
print *, "........................ STEPPER... Before ENDPROGRAM. Press Enter"
print*,"end program test2"
read *
end program test2
23. 23 program tabular_output
real, parameter :: third = 1.0 / 3.0
real :: x
integer :: i
do i = 1 , 10
x = i
! print "(f15.4, f15.4, f15.4)", x,sqrt(x),x**third
print "(3f15.4)", x,sqrt(x),x**third
end do
end program tabular_output
24. 24 program aa
character (len=50) :: a, b, c, d, e
integer :: i, j
a = "aaa bbbb ccccc dddddd eeeeeee"
print *, a
i = index(a," ")+1
b = a(:i-2)
print *, b
c = a(i:)
print *, c
j = index (c," ") +1
d = c(:j-2)
print *, d
e = d(j:)
print *, e
end program aa
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29. 29 program aa character (len=50) :: a, b, c, d, e integer :: i, j a = "aaa bbbb ccccc dddddd eeeeeee" print *, a i = index(a," ")+1 b = a(:i-2) print *, b c = a(i:) print *, c j = index (c," ") +1 d = c(:j-2) print *, d e = d(j:) print *, e end program aa program 0206 ! Asks the hour and the minute values of the ! present time and displays it as a sentence. integer :: hh,mm print *, " Input the hour, in the 24 hours format." read *, hh print *, " Input the minute." read *, mm print *, "" print *, " THE TIME IS ",mm," MINUTES AFTER ",hh end program 0206 ! Assignment statements with constant expressions. program C01 implicit none integer, parameter :: NAME_LENGTH = 21 real :: Avogadros_Number integer :: Many complex :: Z logical :: Flag character (len = NAME_LENGTH) :: Name ! start program C01 Many = 346021 ! Integer type Avogadros_Number = 6.0221367e23 ! Real type Z = (0.0, 1.75e8) ! Complex type Flag = .true. Name = " Mustafa Sezer" ! Character type, length 21 write (unit = *, fmt = *) Many, Avogadros_Number, Z, Flag, Name stop end program C01
30. 30 program C02 use C02M implicit none ! start program C02 call Assign_2( ) stop end program C02 ! Assignment statements with variable expressions. module C02M implicit none public :: Assign_2 contains subroutine Assign_2( ) ! Type declarations with initialization: real, save :: Y = 1.23, Pi = 3.141592 integer, save :: Counts = 173 character (len = 8), save :: I = " Optics " logical, save :: Flag = .true. ! Type declarations without initialization: real :: X, Theta integer :: Many character (len = 8) :: K logical :: Done ! start subroutine Assign_2 X = Y ! Real type Y = X Theta = Pi Many = Counts ! Integer type K = I ! Character type, length 8 Done = Flag ! Logical type write (unit = *, fmt = *) Y, Pi, X, Theta, Counts, Many, I, K, Flag, Done return end subroutine Assign_2 end module C02M ! Assignment statements with arithmetic expressions. program C03 implicit none real, parameter :: GRAVITY = 9.8 real :: Old_Vol, Old_Press, Old_Temp, New_Vol, New_Press, New_Temp real :: Mass, Velocity, Kinetic_Energy, Pressure, Density, Height, Bernoulli integer, parameter :: J = 6 integer :: I ! start program C03 I = J + 1 write (unit = *, fmt = *) I read (unit = *, fmt = *) Old_Vol, Old_Press, Old_Temp, New_Press, New_Temp New_Vol = Old_Vol * (Old_Press / New_Press) * (New_Temp / Old_Temp) write (unit = *, fmt = *) Old_Vol, Old_Press, Old_Temp, New_Vol, New_Press, New_Temp read (unit = *, fmt = *) Mass, Velocity Kinetic_Energy = 0.5 * Mass * Velocity ** 2 write (unit = *, fmt = *) Mass, Velocity, Kinetic_Energy read (unit = *, fmt = *) Pressure, Density, Velocity, Height Bernoulli = Pressure + Density * (0.5 * Velocity ** 2 + GRAVITY * Height) write (unit = *, fmt = *) Pressure, Density, Velocity, Height, Bernoulli stop end program C03