I/O and FORMAT statement

We have implemented translation of three kinds of I/O statements in their primitive forms: WRITE, PRINT and READ. FORTRAN provides sophisticated formatting facility for I/O through edit descriptors [6, page 13-5,], while Java does not [4, page 189,]. This discrepancy makes it difficult to faithfully translate FORTRAN I/O statements to Java. Thus, in our first attempt, formatting information is largely ignored. Nevertheless, some ``important'' formatting information, such as data items interleaved with pre-specified character strings, is properly translated. Thus, for the FORTRAN program:

      program io
      integer a,b,c,d,e
100   format (i3,'Happy Day!')
200   format (i5,'Get',i8,'Hello')
      a=9
      b=6
      c=5
      write(*,200) a,b,c
      print 200, a,b,c
      write(*,200) a,b,b,c
      print 200, a,b,c,d
      write(*,100) a,b,c
      print 100, a,b,c
      write(*,*) 'A=',a,'B=',b,'C'
      print *, 'A=',a,'B=',b,'C'
      write(*,'(i5,i9)') a,b
      print '(i5,i9)', a,b
      end

f2j converts it into:

   class io_mc {
      public static  void main(String args[]) {
         int a,b,c,d,e ;
         a=9 ;
         b=6 ;
         c=5 ;
         System.out.println(a+" "+"Get"+" "+b+" "+"Hello"+"\n"+c+" "+"Get");
         System.out.println(a+" "+"Get"+" "+b+" "+"Hello"+"\n"+c+" "+"Get");
         System.out.println(a+" "+"Get"+" "+b+" "+"Hello"+"\n"
                           +b+" "+"Get"+" "+c+" "+"Hello");
         System.out.println(a+" "+"Get"+" "+b+" "+"Hello"+"\n"
                           +b+" "+"Get"+" "+c+" "+"Hello");
         System.out.println(a+" "+"Happy Day!"+"\n"+b+" "+"Happy Day!"+"\n"
                           +c+" "+"Happy Day!");
         System.out.println(a+" "+"Happy Day!"+"\n"+b+" "+"Happy Day!"+"\n"
                           +c+" "+"Happy Day!");
         System.out.println("A="+" "+a+" "+"B="+" "+b+" "+"C");
         System.out.println("A="+" "+a+" "+"B="+" "+b+" "+"C");
         System.out.println(a+" "+b);
         System.out.println(a+" "+b);
      }
  }

Notice that we have inserted a blank space between two consecutive data items, and we have translated the effect of cyclic use of formatting rules.