reading data from txt file in fortran

Question

I am writing a FORTRAN program that reads data from a text file and writing it to the console. the data file looks something like this

1234567890123456 12345         


        

Answer 1

It is usually better to read data in non fixed format. And to leave some leading spaces so that numbers can fit when writing them out.

integer(8) :: i
real(4) :: x, y, z
open(unit=1, file='data.txt')
read(1,*)i, x, y, z
write(*,'(i16, 3f11.3)')i, x, y, z
end