Algorithm And Programming Pertemuan Ke- 8

File Processing:

–Files and Streams

–File Definition

–Open File

–Close File

–Input File

–Output File

File & Stream

– File is collection of record (baris),is block of byte

– Record is collection of field (kolom),is collection of bit

1 byte = 8 bit
-Field is a block of byte
-Byte is collection of bit

Definisi Streams 

• To keep key in data from keyboard need to be saved at secondary storage device as a data file.
• Streamis a sequence of character. All input and output data is a stream. C sees file as a stream.

 

3 Jenis Stream :

 

1. Standard Input Stream

Controlling input stream from keyboard

2. Standard Output Stream

Controlling output stream to the monitor

3. Standard Error Stream

Controlling the error messaging

 

Buffer area

FILE *fp -> boleh ada boleh tidak

 

OPEN FILE

 

FILE *fopen

r -> READ

w -> Tulis

a -> Nambahin data , dibelakang

r+ -> buka data untuk ditulis dan dibaca

w+ -> buat data untuk tulis dan baca

a+ -> buka data untuk baca atau tambah

 

Close File

int fclose(FILE *stream)

– defined at stdio.h

-EOF equals -1

-Ditutup agar aplikasi lain bisa melihat